More than 200 Que. of CCNA By Mangesh Kakade 9730741029

8/7/2019 More than 200 Que. of CCNA By Mangesh Kakade 9730741029

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More than 200 CCNA questions

By admin | January 2, 2007

1.Assystem administrator, you type debug ipx sap and receivethe following lines as partofthe IOS response:type 04, HELLO2, 199.0002.0003.0006 (451), 2 hopstype 04,HELLO1, 199.0002.0003.0008 (451), 2 hops What does 04 signify?* That is a Get Nearest Server response.* That it is a General query.* That it is a General response.* That it is a Get Nearest Server request.Correct answer:A

2. To monitor IP igrp traffic, you can use debug IP igrp transaction or debug IP igrpevents. How do you display information about IPX routing update packets?* debug routing

* debug ipx transaction* debug ipx routing activity* debug ipx eventsCorrect answer:C

3. To monitor ipx trafficon a network, whatcommand would you use?* debug ipx transaction* show ipx traffic* show ipx events* display ipx trafficCorrect answer:B

4. Whatcommand would you useto find outthe namesof Novellserverson a network?*show

ipxse

rvers* show ipx hosts

* show ipx sap* show ipx nodes.Correct answer:A

5. The ipx delay number command will allow an administratortochangethe defaultsettings. What arethe defaultsettings?* For LAN interfaces, onetick; for WAN interfaces, six ticks* For LAN interfaces, six ticks; for WAN interfaces, onetick* For LAN interfaces, zeroticks; for WAN interfaces, fiveticks* For LAN interfaces, fiveticks; for WAN interfaces, zero TicksCorrect answer:AThe default isfor LAN interfaces, onetick; for WAN interfaces, six ticks

6. As a system administrator, you need toset up one Ethernet interfaceon the Cisco routerto allow forbothsap and Novell-etherencapsulations. Whichsetofcommandswillaccomplishthis?* interfaceethernet 0.1 ipx encapsulation Novell-ether ipx network9e interfaceethernet0.2 ipx network6c* interfaceethernet 0 ipx encapsulation Novell-ether ipx network9e interfaceethernet 0


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ipx encapsulation sap ipx network6c* interfaceethernet 0.1 ipx encapsulation Novell-ether interfaceethernet 0.2 ipxencapsulation sap* interfaceethernet 0.1ipx encapsulation Novell-ether ipx network9e interfaceethernet0.2 ipx encapsulation sap ipx network6c

Correct answer:DThe following commandssetup thesubinterfacesto allow fortwotypesofencapsulation:interfaceethernet 0.1 ipx encapsulation Novell-ether ipx network9e interfaceethernet0.2 ipx encapsulation sap ipx network6c

7. What doesthe IPX maximum-paths 2 command accomplish?* Itenablesload sharing on 2 paths ifthe paths areequal metric paths.* Itsets up routing to goto network2.* It isthe default for Cisco IPX load sharing.* Itenablesload sharing on 2 paths ifthe paths are unequal metric paths.Correct answer:AItenablesload sharing on 2 paths ifthe paths areequal metric paths. The default is 1 path

and the maximum is 512 paths.8. You wanttoenableboth arpa and snap encapsulation on one router interface. How doyou dothis?* The interfacecan handle multipleencapsulation typeswith noextra configuration.* Assign two networknumbers, one foreachencapsulation type.* Enable Novell-etherto run multipleencapsulation types.* Both arpa and snap areenabled by defaultso you donthavetoconfigure anything.Correct answer:BTo assign multiple networknumbers, you usually usesubinterfaces. Asampleconfiguration follows: ipx ethernet 0.1 ipx encapsulation novell-ether ipx network9einterfaceethernet 0.2 ipx encapsulation sap ipx network6cBy default, Cisco routers forward GNS SAPsto remote networks.* False* TrueCorrect answer:AGNS is Novells protocolto Get Nearest Server. Ifthere is a serveron thelocal network,thatserverwill respond. Ifthere isnt, the Cisco routerhastobeconfigured to forwardthe GNS SAP.

9. To prevent ServiceAdvertisements (SAPs) from flooding a network, Cisco routers do notforward them. How areservices advertised toother networks?* Each routerbuilds itsown SAP table and forwardsthatevery 60 seconds.* Each router assigns a service number and broadcaststhat.* SAPs arent necessary with Cisco routers.* Cisco routers filterout all SAPs.Correct answer:ACisco routersbuild SAP tables and forward thetableevery 60 seconds. All SAPscantbefiltered even with 4.x since NDS and timesynchronization uses SAPs.

10.Novells implementation of RIP updates routing tablesevery ____seconds.* 60* 90


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* 10* 30Correct answer:ANovells RIP updates routing tablesevery 60 seconds, Apples RTMP isevery 10seconds, routersARP every 60 seconds, IGRP signalevery 90 seconds, and Banyan

VINES signalsevery 90 seconds.11.In Novells useof RIP, there aretwo metrics used to make routing decisions. Selectthetwo metrics.* Ticks.* Hops* Loops* CountsCorrect answer:A &BIt first usesticks (which is about 1/18 sec.); ifthere is a tie, it useshops; ifhops areequal,then it uses an administratively assigned tiebreaker.

12.What isthe Cisco name fortheencapsulation type used on a serial interface?* HDLC* SDLC* SAP* SNAPCorrect answer:A

13.arpa is used by the Cisco IOS forwhichencapsulation types?* Ethernet_II* Ethernet_802.3* Ethernet_802.2* Ethernet_SNAPCorrect answer:A

14.Novells IPX and Ciscos IOS nametheir protocols differently. Cisco usessap forEthernet_802.2, Token-Ring, and Novells FDDI_802.2. Cisco usessnap forEthernet_SNAP, Token-Ring_SNAP, and FDDI_SNAP. Cisco uses arpa for Ethernet_IIand, finally the default is Novell-ether for Novells Ethernet_802.3. snap is used by theCisco IOS forwhichencapsulation types?* Ethernet_SNAP* Token-Ring_SNAP* FDDI_SNAP* Novell-SNAP* Novell-FDDI.Correct answer:A,B &C

15.Novells IPX and Ciscos IOS nametheir protocols differently. Cisco usessap forEthernet_802.2, Token-Ring, and Novells FDDI_802.2. Cisco usessnap forEthernet_SNAP, Token-Ring_SNAP, and FDDI_SNAP. Cisco uses arpa for Ethernet_IIand, finally the default is Novell-ether for Novells Ethernet_802.3.15 sap is used bythe Cisco IOS forwhichencapsulation types?* Ethernet_802.2* Token-Ring* FDDI_SNAP


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* Ethernet_802.3* FDDI_802.2Correct answer:A,B &E

16.Novells IPX and Ciscos IOS nametheir protocols differently. Cisco usessap forEthernet_802.2, Token-Ring, and Novells FDDI_802.2. Cisco usessnap for

Ethernet_SNAP, Token-Ring_SNAP, and FDDI_SNAP. Cisco uses arpa for Ethernet_IIand, finally the default is Novell-ether for Novells Ethernet_802.3. WhichtypeofEthernet framing is used for TCP/IP and AppleTalk?* Ethernet 802.3* Ethernet 802.2* Ethernet II* Ethernet SNAPCorrect answer:DEthernet 802.3 is used with NetWare versions 2 through 3.11, Ethernet 802.2 is used withNetWare 3.12 and later plus OSI routing, Ethernet II is used with TCP/IP and DECnet,and Ethernet SNAP is used with TCP/IP and AppleTalk.

17.Whichtypeof Ethernet framing is used for TCP/IP and DECnet?* Ethernet 802.3* Ethernet 802.2* Ethernet II* Ethernet SNAPCorrect answer:CEthernet 802.3 is used with NetWare versions 2 through 3.11, Ethernet 802.2 is used withNetWare 3.12 and later plus OSI routing, Ethernet II is used with TCP/IP and DECnet,and Ethernet SNAP is used with TCP/IP and AppleTalk.

18.You are a system administratoron a NetWare network, you are running NetWare 4.11and you cannotcommunicatewith your router. What isthelikely problem?* NetWare 4.11 defaultsto 802.2 encapsulation.* NetWare 4.11 defaultsto 802.3 encapsulation* Cisco routersonly workwith NetWare 3.11.* NetWare 3.11 defaultsto 802.2 encapsulation.Correct answer:AThe defaultencapsulation on Cisco routers is Novell Ethernet_802.3 and NetWare 3.12and later defaultsto 802.2 encapsulation, 3.11 and earlier defaultsto 802.3.

19.NetWare IPX addressing uses a networknumber and a node number. Whichstatementsaretrue?* The networkaddress is administratively assigned and can be up to 16 hexadecimaldigitslong.* The node address is always administratively assigned.* The node address is usually the MAC address.* Ifthe MAC address is used asthe node address, then IPX eliminatesthe useofARP.Correct answer:A, C &DThe networkaddresscan be up to 16 hexadecimal digits in length. The node number is 12hexadecimal digits. The node address is usually the MAC address. An example IPXaddress is 4a1d.0000.0c56.de33. The networkpart is 4a1d. The node part is


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0000.0c56.de33. The networknumber is assigned by thesystem administratoroftheNovell network.

20.Which NetWare protocolworkson layer 3networklayerofthe OSI model?* IPX* NCP

* SPX* NetBIOSCorrect answer:AIPX (InternetworkPacket Exchange) is a NetWare networklayer 3 protocol used fortransferring information on LANs.

21.Which NetWare protocol provideslink-state routing?* NLSP* RIP* SAP* NCPCorrect answer:A

NetWare LinkServices Protocol (NLSP) provideslink-state routing. SAP (ServiceAdvertisement Protocol) advertises networkservices. NCP (NetWare Core Protocol)providesclient-to-serverconnections and applications. RIP is a distance vector routingprotocol.

22.As a system administrator, you wantto debug igrp but areworried thatthe debug IP igrptransaction command will flood theconsole. What isthecommand that you should use?* debug IP igrp event* debug IP igrp-events* debug IP igrp summary* debug IP igrp eventsCorrect answer:DThe debug IP igrp events is used toonly display a summary of IGRP routinginformation. You can append an IP addressontoeithercommand toseeonly the IGRPupdates from a neighbor.

23.What doesthe following seriesofcommands accomplish? router igrp 71 network10.0.0.0 router igrp 109 network172.68.7.0* It isolates networks 10.0.0.0 and 172.68.7.0.* Itloads igrp for networks 109 and 71.* It disables RIP.* It disables all routing protocols.Correct answer:AIt isolates network10.0.0.0 and 172.68.7.0 and associates autonomoussystems 109 and71 with IGRP. IGRP does not disable RIP, bothcan be used atthesametime.

24.In thecommand router igrp 109 what does 109 signify?* an autonomoussystem* any networknumberwhichthe router is attached to* the allowablelengthofthe routing table* the networksocket numberCorrect answer:AThe Cisco IOS globalconfiguration command router igrp xxx is used toconfigurethe


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Interior Gateway Routing Protocol. In thiscase, the 109 iscalled the process-id , whichcan alsobe used for an autonomoussystem number.

25.IGRP supports a featurethat allowstraffictobe distributed among up to 6 (4 default)pathsto provide greateroverallthroughput and reliability. What isthiscalled?* unequal-costload balancing

* equal-costload balancing* proportionateload balancing* lowcostload balancingCorrect answer:AAn unequal-costload balancing is used to provide alternate paths for data distribution onan internetwork. Cisco developed this method to use unused or under utilized linkstoincreasebandwidth and networkavailability.

26.IGRP uses flash updates, poison reverse updates, holddown times, and splithorizon. Howoften does itbroadcast its routing table updates?* 90 seconds* 10 seconds

* 30 seconds* 45 secondsCorrect answer:A

27.Thecommand show IP protocol displayswhich information?* routing timers* network information* contentsofthe IP routing table* information about allknown networkand subnetworksCorrect answer:A & Bshow IP protocol displays routing timers and networkinformation. show IP routedisplaysthe routing tablewith information about allknown networks and subnetworks.

28.When using RIP, routing updates arebroadcastevery ____seconds.* 30* 10* 60* 90Correct answer:ANovells RIP updates routing tablesevery 60 seconds, Apples RTMP isevery 10seconds, routersARP every 60 seconds, DECnethosts and IGRP signalevery 15seconds, and Banyan VINES signalsevery 90 seconds.

29.An autonomoussystem can only exist if all routers in thatsystem meetwhichcriteria?* interconnected* run thesame routing protocol* assigned same autonomoussystem number* run IGRP only* run RIP onlyCorrect answer:A,B &CAn autonomoussystem is a setof routers and networks underthesame administration.Each router mustbe interconnected, run thesame routing protocol, and assigned thesame


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autonomoussystem number. The networkInformation Center (NIC) assigns a uniqueautonomoussystem numbertoenterprises.

30.A default route is analogousto a _________.* default gateway* static route

* dynamic route* one-way routeCorrect answer:AA default route is analogousto a default gateway. It is used to reducethelengthofrouting tables and to providecomplete routing capabilitieswhen a router might notknowthe routesto allother networks.

31.Routerscan learn about destinationsthroughstatic routes, default, or dynamic routing.By default, a routerwill use information derived from __________.* IGRP* RIP* IP

* TCPCorrect answer:AThe quality of information is rated:Connected interface 0Static route 1IGRP 100RIP 120Unknown 255Thelowerthe value, the more reliablethesourcewith 255 signifying information thattherouterwill ignore. So, the routerwill use IGRP, rated at 100, before RIP, rated at 120.

32.You arelogged into a router, whatcommand would show you the IP addressesof routersconnected to you?* showcdp neighbors detail* show run* show neighbors* showcdpCorrect answer:A

33.As a system administrator, you perform an extended ping atthe privileged EXEC prompt.As partofthe display, you see Set DF bit in IP header? [yes]: Whatwould happen ifyou answered no atthe prompt.* Thisletsthe router fragmentthe packet.* Ittellsthe router notto fragmentthe packet.* Thisletsthe router directthe packettothe destination it finds in its routing table.* Ittellthe routertosend the packettothe nexthop routerCorrect answer:ASet DF bit in IP header? is a responseto an extended ping atthe router. If you answeryes (the default) the routerwill not fragmentthe packet. If you answer no, the routerwillfragmentthe packet.

34.You havetyped ping 172.16.101.1 and getthe following display: Typeescapesequenceto abort. Sending 5, 100-byte ICMP Echoesto 172.16.101.1, timeout is 2


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seconds:.!!!!What doesthe . signify?* Thatone messagetimed out.* That all messagesweresuccessful.

* Thatone messagewassuccessful.* Thatone messagecompleted in underthe allotted timeframe.Correct answer:AThe possible responses from the ping command are: ! Successful receiptof an echo reply.Timed outwaiting for a reply U Destination unreachable C Congestion-experiencedpacket I Ping interrupted ? Packettype unknown & Packet TTL exceeded

35.Whichcommand, that is used totest addressconfiguration, uses Time-To-Live (TTL)valuesto generate messages from each router.* trace* ping* telnet

* bootpCorrect answer:AThe Cisco IOS EXEC command trace [protocol] [destination] is used to discover routesthat packetswilltraveltotheir destination hosts. Trace uses TTL (Timeto Live) valuestoreport destination route information.

36.What doesthecommand IP name-server 255.255.255.255 accomplish?* Itsetsthe domain namelookup tobe a localbroadcast.* This is an illegalcommand.* It disables domain namelookup.* Thecommand is now defunct and hasbeen replaced by IP server-name ip anyCorrect answer:ABy default DNS isenabled on a routerwith a server addressof 255.255.255.255, whichprovides for a localbroadcast.

37.As a system administrator, you need to provide your routerswith a Domain NameSystem (DNS) server. How many DNS serverscan you specify withonecommand?* 6* 1* 2* 4Correct answer:AYou can only specify six nameservers in onecommand. Thesyntax is IP name-serverserver-address1 [[ server-address2 ]server-address6]. You must alsoenableDNS.

38.Howwould you configureonehost namethat pointstotwo IP addresses?* IP host jacob 1.0.0.5 2.0.0.8* IP jacob 1.0.0.5 2.0.0.8* IP host jacob 1.0.0.5* IP host duplicate all


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Correct answer:AThecorrectsyntax is IP host name [ TCP-port-number] address [ address].. So, IPhost P1R1 1.0.0.5 2.0.0.8 isthecorrectchoice. IP host jacob 1.0.0.5 only pointsthehost name jacobtoone IP address1.0.0.5.

39.The following selectionsshowthecommand prompt and theconfiguration ofthe IPnetworkmask. Whichtwo arecorrect?* Router#term IP netmask-format { bitcount | decimal | hexadecimal }* Router(config-if)#IP netmask-format { bitcount | decimal | hexadecimal }* Router(config-if)#netmask-format { bitcount | decimal | hexadecimal }* Router#ip netmask-format { bitcount | decimal | hexadecimal }Correct answer:A & BRouter#term IP netmask-format { bitcount | decimal | hexadecimal } and Router(config-if)#IP netmask-format { bitcount | decimal | hexadecimal } arecorrect. You can configurethe mask forthecurrentsession and you can configure it for a specificline.

40.When configuring thesubnet maskfor an IP address, which formatscan be used?* dotted-decimal.

* Hexadecimal* Bit-count* Octal* BinaryCorrect answer:A, B &C

41.You are given the following address: 153.50.6.27/25. Determinethesubnet mask, addressclass, subnet address, and broadcast address.* 255.255.255.128, B,153.50.6.0, 153.50.6.127* 255.255.255.128, C,153.50.6.0, 153.50.6.127* 255.255.255.128, C,153.50.6.127, 153.50.6.0* 255.255.255.224, C,153.50.6.0, 153.50.6.127Correct answer:A

42.You are given the following address: 128.16.32.13/30. Determinethesubnet mask,addressclass, subnet address,and broadcast address.* 255.255.255.252, B,128.16.32.12, 128.16.32.15* 255.255.255.252, C,128.16.32.12, 128.16.32.15* 255.255.255.252, B,128.16.32.15, 128.16.32.12* 255.255.255.248, B,128.16.32.12, 128.16.32.15Correct answer:A

43.You are given the following address: 15.16.193.6/21. Determinethesubnet mask, addressclass, subnet address,and broadcast address.* 255.255.248.0, A, 15.16.192.0, 15.16.199.255* 255.255.248.0, B, 15.16.192.0, 15.16.199.255* 255.255.248.0, A, 15.16.199.255, 14.15.192.0* 255.255.242.0, A, 15.16.192.0, 15.16.199.255Correct answer:A

44.You have an IP host addressof 201.222.5.121 and a subnet maskof 255.255.255.248.What isthebroadcast address?


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* 201.222.5.127* 201.222.5.120* 201.222.5.121* 201.222.5.122Correct answer:A

Theeasiestway tocalculatethis istosubtract 255.255.255.248 (subnet mask) from255.255.255.255, thisequals 7. Convertthe address 201.222.5.121 tobinary11001001 11011110 0000010101111001. Convertthemask255.255.255.248 tobinary11111111 11111111 11111111 11111000. AND themtogetherto get: 11001001 11011110

45.01111000 or 201.222.5.120. 201.222.5.120 isthesubnet address, add 7 tothis address for201.222.5.127 orthebroadcast address. 201.222.5.121 through 201.222.5.126 arethe valid host addresses.

46.Given the address 172.16.2.120 and thesubnet maskof 255.255.255.0. How many hostsare available?

* 254* 510* 126* 16,372Correct answer:A172.16.2 120 is a standard Class B addresswith a subnet maskthat allows 254 hosts. Youare a networkadministrator and havebeen assigned the IP addressof 201.222.5.0. Youneed tohave 20 subnetswith 5 hosts persubnet. Thesubnet mask is 255.255.255.248.

47.Which addresses are valid host addresses?* 201.222.5.17* 201.222.5.18* 201.222.5.16* 201.222.5.19* 201.222.5.31Correct answer:A,B & DSubnet addresses in thissituation are all in multiplesof 8. In thisexample, 201.222.5.16isthesubnet, 201.22.5.31 isthebroadcast address. The rest are valid host IDson subnet201.222.5.16.

48.You are a networkadministrator and havebeen assigned the IP addressof 201.222.5.0.You need tohave 20 subnetswith

49.hosts persubnet. Whatsubnet maskwill you use?* 255.255.255.248* 255.255.255.128* 255.255.255.192* 255.255.255.240Correct answer:ABy borrowing 5 bits from thelastoctet, you can. have 30 subnets. If you borrowed only 4bits you could only have 14 subnets. The formula is (2 tothe powerof n)-2. Byborrowing 4 bits, you have (22x22)-2=14. Byborrowing 5 bits, you have


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(22x22x2)-2=30. To get 20 subnets, you would need toborrow 5 bitssothesubnetmaskwould be 255.255.255.248.

50.You are given the IP addressof 172.16.2.160 with a subnet maskof 255.255.0.0. What isthe networkaddress inbinary?* 10101100 00010000

* 00000010 10100000* 10101100 00000000* 11100000 11110000Correct answer:ATo find the networkaddress, convertthe IP addresstobinary10101100 00010000000000010 10100000then ANDed itwiththesubnet mask11111111 1111111100000000 00000000. The rest is 10101100 00010000 00000000 00000000, which is172.16.0.0 in decimal.The firstoctet rulestatesthattheclassof an addresscan be determined by the numericalvalueofthe firstoctet.

51.Which addresses are INCORRECTLY paired withtheirclass?* 128 to 191, Class B* 192 to 223 Class B* 128 to 191, Class C* 192 to 223, Class CCorrect answer:B & CAddressclasses are: 1 to 126, ClassA; 128 to 191, Class B, 192 to 223, Class C; 224 to239, Class D; and

52.to 255, Class E. The firstoctet rulestatesthattheclassof an addresscan be determinedby the numerical valueofthe firstoctet.

53.Which addresses are INCORRECTLY paired withtheirclass?* 1 to 126, ClassA* 128 to 191, ClassA* 1 to 126, Class B* 128 to 191, Class BCorrect answer:B & C.Addressclasses are: 1 to 126, ClassA; 128 to 191, Class B, 192 to 223, Class C; 224 to239, Class D; and

54.to 255, Class E. The firstoctet rulestatesthattheclassof an addresscan be determinedby the numerical valueofthe firstoctet.

55.Which addresses are INCORRECTLY paired withtheirclass?* 240 - 255, Class D* 240 - 255, Class E* 224 - 239, Class D* 224 - 239, Class ECorrect answer:A & DAddressclasses are: 1 to 126, ClassA; 128 to 191, Class B, 192 to 223, Class C; 224 to239, Class D; and 240 to 255, Class E.

56.Which IP Address Class is INCORRECTLY paired with its rangeof networknumbers?* ClassA addresses include 192.0.0.0 through 223.255.255.0* ClassA addresses include 1.0.0.0 through 126.0.0.0


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* Class B addresses include 128.0.0.0 through 191.255.0.0* Class C addresses include 192.0.0.0 through 223.255.255.0* Class D addresses include 224.0.0.0 through 239.255.255.0Correct answer:AClassA addresses include 1.0.0.0 through 126.0.0.0

Class B addresses include 128.0.0.0 through 191.255.0.0Class C addresses include 192.0.0.0 through 223.255.255.0Class D addresses include 224.0.0.0 through 239.255.255.0

57.Which IP Address Classcan have 16 million subnetsbutsupport 254 hosts?* Class C* ClassA* Class B* Class DCorrect answer:APossible Subnets IP Address Class Possible Hosts

58.A 16M.64K B 64K16M C 254

59.Which IP Address Classcan have 64,000 subnetswith 64,000 hosts persubnet?* Class B* ClassA* Class C* Class DCorrect answer:AIP Address Class Possible Subnets Possible Hosts

60.A 16M64K B 64K16M C 254

61.There aretwo processesto pair MAC addresswith IP addresses. Which process finds anIP address from a MAC address?* RARP* ARP* RIP* IGRPCorrect answer:AARP (Address Resolution Protocol) maps an IP addresstothe MAC address, RARP(ReverseAddress Resolution Protocol) mapsthe MAC addresstothe IP address. ARPand RARP workatthe internetlayerofthe Internet Modelorthe networklayeroftheOSI model.

62.When the router runsoutofbufferspace, this iscalled ________.* Source Quench* Redirect* Information Request* Low MemoryCorrect answer:ASource quench isthe processwherethe destination router, orend internetworking device


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Correct answer:AThe following arethe fields in an IP segment, theirlength, and their definitions:VERS (Version number- 16 bits)HLEN (Numberof 32-bitwords in theheader- 4 bits)Typeof Server (Howthe datagram should behandled - 32 bits)

Total Length (Totallengthofheader and data - 32bits)Identification (Provide fragmentation of datagramsto allow different MTUs in theinternet- 4 bits)Flags (Provide fragmentation of datagramsto allow different MTUs in the internet- 4bits)Frag Offset (Provide fragmentation of datagramsto allow different MTUs in the internet- 6 bits)TTL (Time-To-Live- 6 bits)Protocol (Upperlayer protocolsending the datagram - 16 bits)Header Checksum )Integrity checkon theheader- 16 bits)Source IP Address (32 bits)

Destination IP Address (32 bits)IP Options (networktesting, debugging, security and others- 4 bits)Data (4 bits).

66.What field tellsthe Internetlayerhowtohandle an IP packet?* Typeof Service* Identification* Flags* Frag OffsetCorrect answer:AThe following arethe fields in an IP segment, theirlength, and their definitions:VERS (Version number- 16 bits)HLEN (Numberof 32-bitwords in theheader- 4 bits)Typeof Server (Howthe datagram should behandled - 32 bits)Total Length (Totallengthofheader and data - 32bits)Identification (Provide fragmentation of datagramsto allow different MTUs in theinternet- 4 bits)Flags (Provide fragmentation of datagramsto allow different MTUs in the internet- 4bits)Frag Offset (Provide fragmentation of datagramsto allow different MTUs in the internet- 6 bits)TTL (Time-To-Live- 6 bits)Protocol (Upperlayer protocolsending the datagram - 16 bits)Header Checksum )Integrity checkon theheader- 16 bits)Source IP Address (32 bits)Destination IP Address (32 bits)IP Options (networktesting, debugging, security and others- 4 bits) Data (4 bits).

67.Which fieldsof an IP packet provide for fragmentation of datagramsto allow differingMTUs in the internet?* Identification* Flags


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* Frag Offset* Typeof Service* Total LengthCorrect answer:A, B & CThe following arethe fields in an IP segment, theirlength, and their definitions:

VERS (Version number- 16 bits)HLEN (Numberof 32-bitwords in theheader- 4 bits)Typeof Server (Howthe datagram should behandled - 32 bits)Total Length (Totallengthofheader and data - 32bits)Identification (Provide fragmentation of datagramsto allow different MTUs in theinternet- 4 bits)Flags (Provide fragmentation of datagramsto allow different MTUs in the internet- 4bits)Frag Offset (Provide fragmentation of datagramsto allow different MTUs in the internet- 6 bits)TTL (Time-To-Live- 6 bits)

Protocol (Upperlayer protocolsending the datagram - 16 bits)Header Checksum )Integrity checkon theheader- 16 bits)Source IP Address (32 bits)Destination IP Address (32 bits)IP Options (networktesting, debugging, security and others- 4 bits)Data (4 bits).

68.Which processes does TCP, but not UDP, use?* Windowing* Acknowledgements* Source Port* Destination PortCorrect answer:A & BUDP (User Datagram Protocol) does not usesequenceor acknowledgement fields intransmission.UDP is a connectionless and unreliable protocol, sincethere is no delivery checkingmechanism in the UDP data format.

69.What isthe UDP datagram format?* Source Port- 16 bits, Destination Port- 16 bits, Length- 16 Bits, Checksum - 16 bits,Data* Destination Port- 16 bits, Source Port- 16 bits, Length- 16 Bits, Checksum - 16 bits,Data* Source Port- 16 bits, Destination Port- 16 bits, Checksum - 16 Bits, Length- 16 bits,Data* Source Port- 8 bits, Destination Port- 8 bits, Length-8 Bits, Checksum - 8 bits, DataCorrect answer:AThe UDP format for a segment is as follows:Source Port 16 bitsDestination Port 16bitsLength 16 bits


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Checksum 16 bitsData xxbits

70.What isthe function of DDRon Cisco routers?* DDR is dialon-demand routing. It provides a continuous LAN only connection.* DDR is dial-on-demand routing. It provides routing forhigh volumetraffic.

* DDR is dialon-demand routing. It provides a continuous WAN connection.* DDR is dial-on-demand routing. It provides routing forlow volume and periodictraffic.Correct answer:DDDR is dial-on-demand routing. It provides routing forlow volume and periodictraffic.It initiates a callto a remotesitewhen there istraffictotransmit.

71.What arethetwotypesof accessliststhatcanbeconfigured on a Cisco router?* Standard* Extended* Filtering* Packet

Correct answer:A & BThe accesslists arestandard and extended. Standard accesslists for IP checkthesourceaddressof packetsthatcould be routed. Extended accesslistscan checkthesource anddestination packet pluscheck forspecific protocols, port numbers, etc.

72.When using accesslists, what does a Cisco routercheck first?* Tosee ifthe packet is routableorbridgeable* The destination address* Thesource address* The packetcontentsCorrect answer:AThe firstthing checked istosee ifthe packet is routableorbridgeable. If it is not, thepacketwillbe dropped.

73.How many accesslists are allowed per interface?* One per port, per protocol* Two per port, per protocol* Unlimited* Router interface +1 per port.Correct answer:AOnly one accesslist is allowed per interface. An accesslist musthaveconditionsthattesttrue for all packetsthat usethe accesslist.

74.What dothe following commands accomplish?access-list 1 deny 172.16.4.0 0.0.0.255access-list 1 permit any interfaceethernet 0IP access-group 1 out* Thiswillblocktraffic from subnet 172.16.4.0 and allow allothertraffic.* Thiswill allowtraffic from subnet 172.16.4.0 and blockallothertraffic.* Alltraffic is allowed.* Alltraffic isblocked.Correct answer:AThiswillblocktraffic from subnet 172.16.4.0 and allow allothertraffic. The first


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statement access-list 1 deny 172.16.4.0 0.0.0.255 will deny accesstothesubnet172.16.4.0.

75.What dothe following statements in an extended accesslist accomplish?access-list 101 deny TCP 172.16.4.0 0.0.0.255 172.16.3.0 0.0.0.255 eq 21access-list 101 deny TCP 172.16.4.0 0.0.0.255 172.16.3.0 0.0.0.255 eq 20

access-list 101 permit TCP 172.16.4.0 0.0.0.255 0.0.0.0 255.255.255.255* Thiswillblockftp traffic.* Thiswillblockhttp traffic.* Thiswill permit ftp traffic.* Thiswill permittftp traffic.Correct answer:AThiswillblockftp trafficsince ftp uses ports 20 and 21.

76.Accesslists are numbered. Whichofthe following rangescould be used for an IP accesslist?* 600 - 699* 100 - 199

* 1 - 99* 800 - 899* 1000 - 1099Correct answer:wer: B & CAppleTalkaccesslists use numbers in the 600 - 699 range. IP uses 1 - 99 forstandardaccesslistsor 100-199 forextended accesslists. IPX uses 800 - 899 or 900 - 999 forextended accesslists. IPX SAP filters use 1000 - 1099.

77.Cisco routers usewildcard masking to identify howtocheckor ignorecorresponding IPaddressbits. What doessetting a wildcard maskbitto 0 causethe routerto do?* Ittellsthe routertocheckthecorresponding bit value.* Ittellsthe routerto ignorethecorresponding bit value.* Ittellsthe routertocheckits alternate routing list.* Ittellsthe routerto use its primary routing list.Correct answer:AIttellsthe routertocheckthecorresponding bit value.

78.You are a system administrator and you wantto deny accessto a group ofcomputerswithaddresses 172.30.16.0 to 172.30.31.0. Whichwildcard maskwould you use?* 0.0.15.255* 0.0.255.255* 0.0.31.255* 0.0.127.255* 0.0.255.255Correct answer:A0.0.15.255 willcheckthelast 13 bitsof an addresssothatcomputers 172.30.16.0 to172.30.31.0 willbe denied access. 0.0.31.255 would checkthelast 6 binary digits anddeny accessto addresses 172.30.32.0 to 172.30.63.0. 0.0.127.255 would checkthelast 7binary digits and deny accessto addresses 172.30.64.0 to 172.30.127.0. 0.0.255.255would deny 172.30.0.0 to 172.30.254.0. If you write decimal 15 in binary, you have0001111, the 1stellthe routerto ignore addresswiththesebitsset; 0stellthe routerto


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checkthebits. Thethird octet for 172.30.16.0 is 00010000. Thethird octet for172.30.31.0 would be 00011111. So, traffic from these addresseswould be denied.

79.In ordertolimitthe quantity of numbersthat a system administratorhastoenter, Ciscocan usewhich abbreviation to indicate 0.0.0.0?* host

* any* all* includeCorrect answer:ACisco useshosttospecify 0.0.0.0. Thistellsthe routertocheckall. Cisco uses any tospecify 255.255.255.255. Thistellsthe routerto ignore all and permit any addressto usean accesslisttest.

80.What dothe following commands accomplish?access-list 1 permit 172.16.0.0 0.0.255.255interfaceethernet 0IP access-group 1 out

interfaceethernet 1IP access-group 1 out* Only traffic from thesource network172.16.0.0 willbeblocked.* Only traffic from thesource network172.16.0.0 willbe forwarded. Non-172.16.0.0networktraffic isblocked.* Non-172.16.0.0 trafficwillbe forwarded.* Alltrafficwillbe forwarded.Correct answer:BOnly traffic from thesource network172.16.0.0 willbe forwarded. Non-172.16.0.0networktraffic isblocked. Thewildcard mask0.0.255.255 tellsthe routertocheckthefirst 2 octets and to ignorethelast 2 octets.

81.When using accesslists, it is importantwherethose accesslists are placed. Whichstatementbest describes accesslist placement?* Putstandard accesslists as nearthe destination as possible. Putextended accesslists asclosetothesource as possible.* Putextended accesslists as nearthe destination as possible. Putstandard accesslists asclosetothesource as possible.* It isnt importwhere accesslists are placed sincethe routerwill read and cachethewholelist.* Put accesslists asclosetocorporateheadquarters as possible.Correct answer:APutstandard accesslists as nearthe destination as possible. Putextended accesslists asclosetothesource as possible. Standard accesslists dontspecify the destination address.

82.Asthesystem administrator, you enterthe following commands atthecommand prompt:ipx routingaccess-list 800 permit 2b 4dinte0ipx network4dipx access-group 800 outinte1


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ipx network2binte2ipx network3cWhat did thesecommand accomplish?* Traffic from network4c destined for network4d willbe forwarded out Ethernet0.

* Traffic from network3c destined for network4d willbe forwarded out Ethernet0.* Traffic from network2b destined for network4d willbe forwarded out Ethernet0.* Traffic from network4d destined for network2d willbe forwarded out Ethernet0.Correct answer:CTraffic from network2b destined for network4d willbe forwarded out Ethernet0. Theother interfaces E1 and E2 are notsubjecttothe accesslistsincethey lackthe accessgroup statementtolinkthem to accesslist 800.

83.The following commandswereentered atthecommand promptof a Cisco router. Whatdothey accomplish?access-list 1000 deny 9e.1234.5678.1212 4access-list 1000 permit-1

interfaceethernet 0ipx network9einterfaceethernet 1ipx network4ainterfaceserial 0ipx network1ipx output-sap-filter 1000* Fileserver advertisements from server 9e.1234.5678.1212 will notbe forwarded oninterface S0.* Allother SAP services, otherthan fileserver, from any sourcewillbe forwarded on S0.* Allother SAP services, otherthan printserver, from any sourcewillbe forwarded onS0.* Printserver advertisements from server 9e.1234.5678.1212 will notbe forwarded oninterface S0.Correct answer:A & BFileserver advertisements from server 9e.1234.5678.1212 will notbe forwarded oninterface S0. Allother SAP services, otherthan fileserver, from any sourcewillbeforwarded on S0.

84.You receive input filterlist is 800 and output filterlist is 801 as partoftheoutput froma show interfacescommand. Whatkind oftraffic are you filtering?* IPX/SPX* TCP/IP* LocalTalk* DDRCorrect answer:ABecausethe accesslist is numbered in the 800 range, you are filtering IPX/SPX traffic.

85.Whichservice usestelephonecontrol messages and signalsbetween thetransfer pointsalong theway tothecalled destination?* Signaling System 7 (SS7)* Time-division Multiplexing (TDM)


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* X.25* Frame relayCorrect answer:ASignaling System 7 (SS7) usestelephonecontrol messages and signalsbetween thetransfer points along theway tothecalled destination. Time-division Multiplexing

(TDM) has information from multiplesources and allocatesbandwidthon a single media.Circuitswitching usessignaling to determinethecall route, which is a dedicated pathbetween thesender and the receiver. Basictelephoneservice and Integrated ServicesDigital Network(ISDN) use TDM circuits. X.25 and Frame Relay serviceshaveinformation contained in packetsor framestoshare non-dedicated bandwidth. X.25avoids delays forcallsetup. Frame Relay uses permanent virtualcircuits (PVCs).

86.Whichservicetakes information from multiplesources and allocatesbandwidthon asingle media?* Time-division Multiplexing (TDM)* Signaling System 7 (SS7)* X.25

* Frame relayCorrect answer:A87.Whichthree devicescan be used toconvertthe user data from the DTE into a form

acceptabletothe WAN services facility?* Modem* CSU/DSU* TA/NT1* CO* SS7Correct answer:A, B & CA modem, CSU/DSU (Channel Service Unit/Data Service Unit), or TA/NT1 (TerminalAdapter/NetworkTermination 1) can be used toconvertthe user data from the DTE intoa form acceptabletothe WAN services facility.

88.What isthe juncture atwhichthe CPE ends and thelocalloop portion oftheservicebegins?* Demarc* CO* Localloop* Last-mileCorrect answer:AThe demarcation or demarc isthe juncture atwhichthe CPE ends and thelocalloopportion oftheservicebegins. The CO (Central Office) isthe nearest pointof presence forthe providers WAN service. Thelocalloop or last-mile isthecabling thatextendsfrom the demarc intothe WAN service providerscentraloffice.

89.You can accessthree formsof WAN serviceswith Cisco routers. Selectthethree forms:* Switched or relayed services* Interface frontend to IBM enterprise data centercomputers* Using protocolsthatconnect peer-to-peer deviceslike HDLC or PPP encapsulation.* IPX/SPX* NetBEUI


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Correct answer:A, B & CYou can accessthree formsof WAN serviceswith Cisco routers. Switched or relayedservices include X.25, Frame Relay, and ISDN. An interface frontend to IBM enterprisedata centercomputers includes SDLC. And, you can accesstheservicesof WANproviders using protocolsthatconnect peer devicessuch as HDLC and PPP

encapsulation. IPX/SPX and NetBEUI are LAN protocols.90.Selectthe fields forthe Cisco HDLC protocol:* Flag, Address, Control* Flag, Address, Control, Protocol, LCP (Code, Identifier, Length, Data), FCS, Flag* Flag, Address, Control, Data, FCS, Flag* Flag, Address, Control, Proprietary, Data, FCS, FlagCorrect answer:DThe Cisco HDLC frame format is Flag, Address, Control Proprietary, Data, FCS, Flag.The PPP frame format is Flag, Address, Control, Protocol, LCP (Code, Identifier, Length,Data), FCS, Flag. The SDLC and LAPB format is Flag, Address, Control, Data, FCS,Flag.

85: Selectthe physical interfacesthat PPP can beconfigured on a Cisco router:* Asynchronousserial* HSSI* ISDN* SynchronousserialCorrect answer:A, B, C & DAll fourofthem can carry PPP traffic. HSSI is High Speed Serial Interface.

91.Selectthecorrectstatements about PPP and SLIP for WAN communications?* PPP uses its NetworkControl Programs (NCPs) componenttoencapsulate multipleprotocols.* PPP can only transport TCP/IP* SLIP can only transport TCP/IP.* SLIP uses its NetworkControl Programs (NCPs) componenttoencapsulate multipleprotocols.Correct answer:A & C87a Which protocol for PPP LCP (LinkControl Protocol) performs a challengehandshake?* CHAP* PAP* UDP* IPXCorrect answer:A87b Which form of PPP error detection on Cisco routers monitors data dropped on a link?* Quality* Magic Number* Error Monitor* DroplinkCorrect answer:AThe Quality protocol monitors data dropped on a link. Magic Number avoids framelooping.


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92.Which protocol for PPP providesload balancing across multiplelinks?* MultilinkProtocol (MP)* Quality* Magic Number* Stacker

* PredictorCorrect answer:A93.Asthesystem administrator, you type ppp authentication chap pap secret. Which

authentication method is used first in setting up a session?* secret* PAP* CHAP* PPP/SLIPCorrect answer:C

94.Selectthecompression protocols for PPP?* Stac

* Predictor* Quality* Magic NumberCorrect answer:A & B

95.What arethethree phasesof PPP session establishment?* Linkestablishment phase* Authentication phase* Networklayer protocol phase* Handshake phase* Dial-in phaseCorrect answer:A, B & C

96.What isthe default IPX Ethernetencapsulation?* SNAP* Arpa* 802.2* Novell-Ether* SAPCorrect answer:D

97.What mustbetrue fortwo Routers running IGRP tocommunicatetheir routes?* Same autonomoussystem number* Connected using Ethernetonly* Usecomposite metricD)Configured for PPPCorrect answer:A

98.The following is partialoutput from a routing table, identify the 2 numbers in thesquarebrackets; 192.168.10.0 [100/1300] via 10.1.0.1, 00:00:23, Ethernet1* 100 = metric, 1300 = administrative distance* 100 = administrative distance, 1300 = hop count* 100 = administrative distance, 1300 = metric


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* 100 = hop count, 1300 = metricCorrect answer:C

99.Identify 3 methods used to prevent routing loops?* Splithorizon* Holddown timers

* Poison reverse* SPF algorithm* LSPsCorrect answer:A B C

100. Whichstatement istrue regarding full duplex?* Allows fortransmission and receiving of data simultaneously* Only works in a multipointconfiguration* Does not affectthebandwidth* Allows fortransmission and receiving of data but not a thesametimeCorrect answer:AFull duplex is justtheoppositeofhalf duplex. Ithandlestraffic inboth directions

simultaneously.101. Identify theswitching method that receivestheentire framethen dispatches it?* Cut-through* Receive and forward* Store and forward* Fast forwardCorrect answer:CStore and forward switching receivestheentire framebefore dispatching it.98Identify the purposeof ICMP?* Avoiding routing loops* Send error and control messages* Transporting routing updates* Collision detectionCorrect answer:BICMP is used tosend error and control messages. Ping uses ICMP tocarry theecho-request and echo-reply.99Whichstatement istrue regarding the userexec and privileged exec mode?* The ? only works in Privileged exec* They are identical* Theyboth requiretheenable password* Userexec is a subsetofthe privileged execCorrect answer:DThe userexec mode is a subsetofthe privileged exec mode. Only a certain numberofcommands are available atthe userexec mode.

102. Which OSI layerend toend communication, segmentation and re-assembly?* Network* Transport* Physical* Application* Data-Link


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* PresentationCorrect answer:BLayer 4 the Transportlayer performsthis function.

103. What IP command would you usetotesttheentire IP stack?* Stack-test

* Arp* Telnet* Ping* TraceCorrect answer:CBecause Telnet is an application and it resides atthetop ofthestack ittraverses down thestackand up thestackatthe receiving end.

104. Identify the 2 hardwarecomponents used to manage and/orconfigure a router?* Auxiliary port* ROM port* Management port

* Console portCorrect answer:A DThe 2 hardware ports used toconfigurethe router aretheconsole and auxiliary ports.

105. What isthe defaultbandwidthof a serialconnection?* 1200 baud* 1.544 Mbps (T1)* 10 Mbps* 96KpbsCorrect answer:BThe defaultbandwidth is T1.

106. Identify 2 functionsof IPX access-lists?* Control SAP traffic* Limit numberof Novellserverson a network* Limit numberofworkstationson a network* Block IPX trafficCorrect answer:A DIPX accesslists are used to restrict IPX traffic and SAP broadcasts.

107. Identify 2 HDLC characteristics?* Defaultserialencapsulation* Open standard* Supports Stackercompression* Supports point-to-point and multipointCorrect answer:A DHDLC isthe defaultserialencapsulation and supports point-to-point and multipoint. It isnot an open standard and does notsupportcompression.

108. Identify 3 IP applications?* AURP* ARP* Telnet* SMTP


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* DNS* RARPCorrect answer:C D EARP and AURP are not partthe application layerofthe TCP/IP stack. SMTP - SimpleMail Transfer Protocol, Telnet, DNS - Domain Name Services (nameto IP resolution).

109.

Identify 3 LAN technologies?* FDDI* HDLC* HSSI* X.25* 802.3* 802.5Correct answer:A E FThe question is asking for 3 LAN technologies, HDLC, HSSI and X.25 are all WANtechnologies.

110. Identify the 4 that are not LAN technologies?* HDLC* FDDI* 802.5* HSSI* SDLC* Frame RelayCorrect answer:A D E F802.5 and FDDI are LAN technologies

111. Which OSI layersupportsthecommunication componentof an application?* Data-Link* Physical* Session* Presentation* Application* TransportCorrect answer:ELayer 7 theApplication layer performsthis function.

112. Identify thelengthof an IPX address and itscomponents?* 80 bits, 48 bits networkand 32 bits node* 32 bits, 16 bits networkand 16 bits node* Noneofthe above* 80 bits, 32 bits networkand 48 bits nodeCorrect answer:DIPX addresshas 2 components; networkand node. The networkaddress is 32 bits and thenode is 48 bits, totalof 80bits.

113. Identify the administrative distance and appropriate routing protocol?* RIP = 255, IGRP = 100* RIP = 100, IGRP = 120* RIP = 1, IGRP = 0* RIP = 120, IGRP = 100


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* Cabling whichextends from the WAN service providertothecustomer* Division of responsibility, wherethe CPE ends and thelocalloop begins* Equipmentwhich islocated atthecustomer premisesCorrect answer:CDemarcation isthe point in which responsibility changeshands.

120.

Identify the 3 key featuresofthe Cisco Discovery Protocol?* Offby default* Will allow forthe discovery oflayer 3 addresseson neighbor routers* Verify connectivity* Open standard* Does not require any layer 3 protocolstobeconfiguredCorrect answer:B C ECDP is used for 2 basic reasons; neighborconnectivity and layer 3 discovery ifconfigured. It is proprietary and isonby default.

121. Identify the 3 characteristicsof IPX RIP?* Distance vector

* Does notsupport multiple paths* 60 second updates* Defaultencapsulation is SAP* Usesticks and hop count as a metricCorrect answer:A C EIPX RIP is a distance vector routing protocol, it doessupport multiple paths, the defaultencapsulation is novell-ether, it usestickcount as a primary metric and hop count as atiebreaker and itsends its updatesevery 60 seconds.

122. Identify the access-list range for an extended IP access-list?* 800 - 899* 1 - 99* 1000 - 1099* 100 - 199Correct answer:DIP extended access-lists usethe number rangeof 100-199.

123. Identify the X.25 addressing standard?* X.121* X.25a* ITU-1* Q933aCorrect answer:AThe X.25 layer 3 addressing standards is X.121.

124. Identify 3 featuresof IGRP?* Composite metric* Newhorizon* Flash updates* 60 periodic updates* Poison reverseCorrect answer:A C E


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IGRP uses a composite metric made up ofbandwidth and delay by default, it updatesevery 60 seconds and willtrigger an update ifthetopology changes.

125. Where isthebackup configuration filestored?* RAM* ROM

* Console* NVRAMCorrect answer:DOnelocation tostorethebackup configuration is NVRAM.

126. Identify thecorrect pairof Novell Ethernetencapsulation and Ciscoterminology?* Ethernet II, Snap* Ethernet 802.3, Novell-Ether* Ethernet SNAP, Arpa* Ethernet 802.2, SnapCorrect answer:BThe default IPX LAN encapsulation is Novell-Etherwhich is 802.3

127.

Identify 3 characteristics regarding IP access-lists?* Can beconfigured as a standard access-list* Can be run from another router running IP* Can beconfigured as a named access-list* Arethesame as IPX access-lists* Can beconfigured as an extended access-listCorrect answer:A C EThere are 3 typesof IP access-lists;standard, extended and named. Named access-listscan beeitherstandard orextended depending on howthey areconfigured.

128. Identify 3 ways in which a routercanbeconfigured?* TFTP* Nvram* Ping* Console* TraceCorrect answer:A BDChangestotheconfiguration can beentered via theconsole, a config stored in NVRAMoron a TFTP server. Trace and ping aretoolsto verify connectivity.

129. Atrafficlight is an exampleofwhattypeof mechanism?* Collision detection* Flowcontrol* Sequence numbering* NetworkmanagementCorrect answer:BA Trafficlight is an exampleof flowcontrol.

130. Windowing is a typeof?* Negative acknowledgement* Address resolution* Layertransition mechanism* Flowcontrol


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Correct answer:DWindowing allowthesender and receiverto dictatehow much information thatcan bereceived priorto an acknowledgement. It is a form of flowcontrol.

131. Identify the 2 typesof access-list filtersthatcontrol SAP traffic?* Novell-ether

* Arpa* Input-sap-filter* Round-robin* Output-sap-filterCorrect answer:C ESAPscan beblocked by 2 methods; inbound and outbound.

132. Identify the 3 guidelines for routers in thesame autonomoussystem?* Mustbeconfigured for IGRP or RIP* Interconnected* Assigned thesame autonomoussystem number* Configured forthesame routing protocol

* Mustbesame modelof routerCorrect answer:B C DAutonomoussystem mustbe interconnected, assigned thesameAS # and configuredwiththesame routing protocol.

133. Identify thehardwarecomponent used tostorebuffers, tables, running-configuration etc?* NVRAM* ROM* RAM* FlashCorrect answer:CRAM isthe dynamic memory area. ROM containsthebootstrap code, NVRAM containsthestartup-config and Flashcontainsthe IOS.

134. Identify 3 UDP characteristics?* Reliablecommunication protocol* Applicationsthat use UDP must incorporate reliability* Connection-lessoriented* Incorporates nohandshakingCorrect answer:B C DUPD is a layer 4 Transport protocol. It isconnection-lessbecause it doesestablish aconnection thereforethe 3 step handshake is not needed, it does NOT implement anyflowcontrolor acknowledgments. Any application that uses UDP must incorporate anyneeded reliability.

135. Identify the IPX standard access-list number range?* 600 - 699* 1000 - 1099* 1 - 99* 100 - 199* 800 - 899


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Correct answer:EIPX standard access-list range is 800-899.

136. Which OSI layer providesbesteffortend toend packet delivery?* Data-Link* Presentation

* Network* Transport* Physical* ApplicationCorrect answer:CLayer 3 the Networklayer performsthis function.

137. Identify the 2 methodsto modify the routersbootsequence?* Setup program* Bootsystem commands* RXBoot* Config-register

Correct answer:BDBootsystem command the config-register are used to manipulatethebootsequence.138. Identify the 3 piecesofhardware you would not installto preventbroadcasts?

* Switch* Repeater* Bridge* RouterCorrect answer:A B CRouter are implemented notonly tobreakup networks intosmallersegmentsbutthey areused toblockbroadcasts.

139. Identify 2 featuresof PPP PAP authentication?* Username and password issent in cleartext* Authentication messages aresent periodically during theconnection* Moresecurethan CHAP* Remote node iscontrolof authentication processCorrect answer:A DPPP PAP authentication sendsthe username and passwords in cleartext and the remotenode initiatesthe authentication process.

140. Identify theswitching method thatexaminesthe destination MAC address astheframe isbeing received then begins forwarding the frame priorto receiving theentireframe?* Fragment-free* Store and Forward* Cut-through* Fast forwardCorrect answer:CCutthroughexaminesthe destination MAC address and begins forwarding the framepriorto receiving theentire frame.

141. Identify 1 characteristicof RARP?* IP to MAC addresstranslation


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* Connectionless delivery of packets* Can be used to initiate remote O/S load sequence* Generateserror and control messagesCorrect answer:CReverseAddress Resolution Protocol is used toobtain a layer 3 address ifthe MAC

address isknown whichthen facilitatestheloading ofthe O/S.142. Identify the protocoltotestconnectivity withoutconfiguring any layer 3protocols?* TCP* Ping* IP* CDP* TelnetCorrect answer:DCDP can be used to verify connectivity priorto any layer 3 protocolsbeing configured.

143. LMI operatesbetween the Frame Switch and whatother device?* CPE device* Another Frame Switch* X.25 switch* Novell File ServerCorrect answer:ALMI stands forlocal management interface. Itoperatesbetween the Frame Relay switchand thecustomerequipment.

144. Identify IPX SAP and its purpose?* SonetAccess Pipe- interfaceto Sonet ring* ServiceAdvertising Protocol- advertiseservices* ServerAppletalkProtocol- appletalkdirectory services* ServiceAccess Point- identify upperlayer protocolsCorrect answer:BSAP is an Novell protocolto advertiseservices.

145. Identify the default valuesthat make up IGRPscomposite metric?* Bandwidth* Load* Reliability* MTU* DelayCorrect answer:A EIGRP canbeconfigured to use all 5 within its metric. By default it usesbandwidth anddelay.

146. Identify the defaultserialencapsulation?* ISDN* HDLC* SDLC* Frame Relay* PPP


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Correct answer:BThe defaultserialencapsulation is HDLC.

147. Identify the purposeofARP?* Avoiding routing loops* Determining a workstations IP address

* Sending a directed broadcast* Determining a workstations MAC addressCorrect answer:DARP is used to find a devices MAC address given an IP address.

148. What isthe purposeofthe DLCI?* Identifiesthe remote routers* Contained with a 802.2 frame for routing purposes* Used with PPP during authentication* Identifiesthe PVC in a Frame Relay networkCorrect answer:DDLCI stands for Data LinkConnection Identifier. It identifiesthelocal PVC.

149.

Identify 3 characteristicsofthe Networklayer (OSI layer 3)?* Connection oriented* Path determination* Supports multiplexing* Managessessions* Packet forwardingCorrect answer:B C EThe networklayer is responsible for routing whichentailslearning the paths, selectingthebest path and forwarding the packet. Because itservices multiplelayer 4 protocols itmultiplexes.

150. Identify 3 characteristicsofswitches?* Increase availablebandwidth* Decreasebroadcasttraffic* Support full duplex in a multipointtopology* Make forwarding decision using MAC address* Createcollision domainsCorrect answer:A D ESwitchesoperate atlayer 2. They increasebandwidthby reducing the numberof devicessharing the media. They isolatecollisions. Like a bridgethey forward trafficbased uponlayer 2 address/ MAC address.

151. Which OSI layerhandles physical address, networktopology?* Presentation* Physical* Transport* Application* Data-Link* NetworkCorrect answer:ELayer 2 the Data-Linklayer performsthis function.


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152. Identify 2 reasons for disabling CDP?* Ifthe router is notconfigured for RIP* Savebandwidthby eliminating overhead* Ifthe router isconfigured forAppletalk* When connected to a non-Cisco router

Correct answer:BDCDP can be disabled here are a coupleof reasons. Connecting a Cisco routerto a non-Cisco router. Dontwanttoexchange CDP information tosavebandwidth.

153. Identify 3 characteristicsof ISDN?* Transports voice and data* Transports voiceonly* Supportboth BRI and PRI* Runsoverexisting phonelines* Same as X.25Correct answer:A C DISDN supports voice, data, and video. It runsoverexisting phonelines and supports

128K (BRI) and T1 (PRI).154. Identify the 3 characteristicsof IGRP?* Useshop count as a metric* Supports multiple unequal paths* Administrative distance is 100* Configured with an Autonomoussystem number* LinkstateCorrect answer:B C DIGRP is a distance vector routing protocol, its degreeoftrustworthiness is 100, itcansupport up to 6 un-equal paths and mustbeconfigured with an autonomoussystemnumber.

155. Identify 2 featuresof PPP CHAP authentication?* Username and password issent in cleartext* Authentication messages aresent periodically during theconnection* Lesssecurethen PAP* Local router challenges the remote routerCorrect answer:BDPPP CHAP authentication message aresent periodically during theconnection bychallenging theotherend oftheconnection.It is moresecurethan PAP and passwords and username areencrypted.

156. Identify the default IPX serialencapsulation?* Novell-Ether* SDLC* SNAP* HDLCCorrect answer:DThe default IPX serialencapsulation is HDLC.

157. Identify thehardwarecomponentthatstoresthebackup configuration?* RAM* NVRAM


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* Flash* ROMCorrect answer:BNVRAM containsthebackup config. RAM isthe dynamic memory area, ROM containsthebootstrap code and Flashcontainsthe IOS.

158.

Identify theextended IP access-list number range?* 600 - 699* 1 - 99* 900 - 999* 100 - 199Correct answer:DTheextended IP access-list range is 100-199.

159. Identify 3 Fast Ethernettechnologies?* 100 Base FastEther* 100 Base FX* 100 Base T4

* 100 Base TXCorrect answer:B C D160. BaseFastEther is false. 100 Base FX, TX and T4 are all valid.161. Identify the OSI layerwhich is responsible forend-to-end connections?

* Network* Transport* Session* Data link* TCPCorrect answer:BLayer 4 isthe Transportlayer and is responsible forend-to-end connections.

162. Identify the 2 characteristics regarding MAC addresses?* Contains a networkportion and host portion* Always assigned by System Administrator* 48 bitslong* Contains a vendorcode and serial numberCorrect answer:C DMAC addresses are assigned by the vendor. Each MAC address is 48 bitslong and madeup of 24bits vendorcode and 24 bitsserial number.

163. Identify the number range for IPX SAP filters?* 900 - 999* 1000 - 1099* 800 -899* 100 - 199Correct answer:BThe IPX SAP filtering range is 1000-1099.

164. What isthe purposeofARP?* IP tohost name resolution* Host nameto IP address resolution* Macto IP address resolution


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* IP to Mac address resolutionCorrect answer:DAddress Resolution Protocol resolvesthe MAC address ifthe IP address isknown. It is alayer 3 protocol.

165. Which OSI layerestablishes, maintains and terminatessessionsbetween hosts?* Application* Physical* Data-Link* Presentation* Network* SessionCorrect answer:FLayer 5 the Session layer performsthis function.

166. Whichstatement istrue regarding Administrative distance?* It is a metric* Numberofhopsbetween two routers

* Trustworthinessofthe routing information* RIP Administrative distance is 100Correct answer:CAdministrative distance is rating oftrustworthinessofthe routing information. ThelowertheAD thebetterthe information.

167. Identify the purposeofthe Ping command?* Share routing information with a neighbor router* Transmit user data when buffers are full* Testconnectivity atlayer 3* Testentire protocolstackCorrect answer:CThe ping command testslayer 3 connectivity.

168. Identify theorderofthe 5 step encapsulation?1. Createthesegment2. Convertthe frametobits3. Createthe packet4. Createthe frame5. Usercreatesthe data* 1,2,4,2,5* 2,1,3,4,5* 5,1,3,4,2* 5,3,4,1,2Correct answer:CCisco 5 step encapsulation.1) Usercreates Data2) Data isconverted into a segment atlayer 43) Thesegment isconverted to packet atlayer 34) The packet itconverted into a frame atlayer 25) The frame isconverted intobits atlayer 1


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175. Identify 3 IP routing protocols?* RIP* AURP* OSPF* IGRP

* ARP* ICMPCorrect answer:A C DAURP and ICMP are not routing protocols.

176. Identify thetypeof routing protocolthatexchangesentire routing tables at regularintervals?* Linkstate* Interior gateway protocols* Appletalkrouting* Distance vectorCorrect answer:D

Distance Vector routing protocolsexchangeentire routing tableswith its neighbors. LinkState routing protocolsexchange LSPstoshare information regarding the networkstheyknow.

177. Identify thetypeofhardware required toconnect a Token ring networkto anEthernet network?* Repeater* TR-Enet* Router* Token Ring to Ethernettranslation hubCorrect answer:CRouters are used toconnect dissimilar networkswith different access-methods, likeconnecting Token Ring to Ethernet.

178. Identify 3 characteristics regarding CDP?* On by default* Showsonly directly connected neighbors* Requires IP or IPX* 60 second update intervalby default* 30 second updates intervalby defaultCorrect answer:A BDCDP stands for Cisco Discovery Protocol. It is used to discover directly connectedneighbors, it ison by default and has a 60 second update intervalby default.

179. Identify 2 transportlayer protocols?* IP* TCP* CDP* ARP* UDPCorrect answer:B ETPC and UDP are 2 layer4 Transport protocols.


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180. Identify 2 featuresof X.25?* Supportsonly IP* Utilizesswitched and permanent virtualcircuits* Contains minimal flowcontrol and error recovery* Utilizes LAPB as its data-linkprotocol

Correct answer:BDX.25 utilizes LAPB and usesswitched and permanent VCs. Itsupports multiplelayerprotocols and isheavy laden witherror detection and correction mechanisms.

181. Identify the purposeofthe Tracecommand?* Explorer packettransmitting routing information* Testconnectivity* Determinethe path a packet istaking throughthe network* Transmits user data whenbuffers are fullCorrect answer:CThetracecommand is used to determinethe path a packethastaken throughthe network.

182. Identify the purposeofthe TCP 3 step handshake?* Setup a un-reliableconnection* Initialize routing tables* Synchronizesequence numbersbetween hosts* Connection tear down processCorrect answer:CThe 3 step handshakeestablishesthe parameters required for a TCP connection. Duringthehandshake processsequence numbers aresynchronized allowing fortheend pointstoproperly acknowledge and re-assemblethesegments.

183. Identify 2 PPP characteristics?* Is proprietary to Cisco* Supports authentication* Supportcompression* Run on a multi-access networkCorrect answer:B CPPP supports authentication; PAP and CHAP. It alsosupportscompression; Stacker andPredictor.

184. Whichstatement istrue regarding half duplex?* Only works in a point-to-pointconfiguration* Allows fortransmitting and receiving but not a thesametime* Allow fortransmitting and receiving of data simultaneously* DoublesthebandwidthCorrect answer:BHalf duplex is analogousto a single a lanebridge, itcan handletraffic inboth directionsbut no atthesametime.

185. Identify the purposeofthewildcard mask?* Match a certain portion ofthe IP addresswhile ignoring the restofthe address* Determinetheclassofthe IP address* Determinethe networkportion of an IP address* Hidethehost portion of an IP addressCorrect answer:A


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The purposeofthewildcard maskto match a certain portion ofthe IP addresswhileignoring the rest.

186. Identify the OSI layer associated withbits?* Physical* Network

* Binary* Data linkCorrect answer:AThe Physicallayerconvertsthe framestobits.

187. Identify thetypeof routing protocolthat maintains a topological databaseofthenetwork?* Topologicalstate* Shortest Path First* Linkstate* Distance vectorCorrect answer:C

LinkState routing protocols maintain a databasethatlists allthe networks in theinternetwork.188. Identify the 3 major functions atlayer 3 ofthe OSI model?

* Forwarding process* Logical addressing* End-to-end connections* Pathselection* MAC addressexamination* NetworkmonitoringCorrect answer:A BDLayer 3 determinesthe path, forwardsthe packet and implementssoftwareorlogicaladdressing.

189. Identify the 2 rules used when configuring a Distance Vector routing protocol?* Physically connected network(s)* Configuretheclassful address, nosubnets* Enable CDP so neighborscan be detected* Configure all networks in Area0Correct answer:A BWhen configuring a Distance Vector routing protocolonly assign the physicallyconnected networkswiththeclassful addressonly.

190. Identify 3 characteristicsof an IP address?* Contains a networkportion and a host portion* 32 bitslong* Uniquetoeach network* Partofthe default Ciscoconfiguration* Referred to asthehardware addressCorrect answer:A B CAn IP address is 32 bitslong, it is referred asthelogicalorsoftware address. Itcontains anetworkand host portion. Each IP address is unique.


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Correct answer:AClassA addresshasthe 1stoctetbetween 1 - 126. Class B between 128 - 191 and Class Cbetween 192 - 223.

196. What does a Standard IP Access-list use astestcriteria?* IP source address

* IP source and destination address, protocol numbers and port numbers* IPX source and destination address* Source MAC addressCorrect answer:AStandard IP accesslist useonly source address.

197. What isthe function ofthe Transportlayer and which protocols residethere?* MAC addressing - IP* Interhostcommunication - SQL, NFS* Besteffort Packet delivery - TCP, UDP* End-to-end connections- TCP, UDPCorrect answer:D

Layer 4, the Transportlayer, is responsible forend-to-end connections. Thetwo TCP/IPprotocolsthat residethere are TCP and UDP.198. Identify the 3 Internetlayer IP protocols?

* NetBios* IPX* ARP* IP* RARPCorrect answer:C D ENetBios and IPX are notlayer 3 IP protocols. IP - Internet Protocol, ARP -AddressResolution Protocol and RARP - ReverseAddress Resolution Protocol.

199. IPX routing updatesoccurhowoften?* Every 30 seconds* Every 60 seconds* Only as needed* When the remote router asks for an updateCorrect answer:BIPX RIP updates areexchanged every 60 seconds.

200. Identify 3 methods not used to prevent routing loops?* Holddown timers* Sequence numbers* Triggered updates* Splithorizon* Area hierarchies* Orderof routerstartupCorrect answer:B E FArea hierarchies, sequence numbers and orderof routerstartup all relateto LinkStaterouting protocolswhich do NOT incur routing loops.

201. Identify thehardwarecomponentthatstoresthebootstrap program?* ROM


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* NVRAM* Booterload* RAM* FlashCorrect answer:A

ROM containsthebootstrap code.202. Which OSI layer provides mechanical, electrical, procedural for activating,maintaining physicallink?* Presentation* Network* Application* Physical* Transport* Data-LinkCorrect answer:DLayer 1 the Physicallayer performsthis function.

203.

Identify 2 characteristicsof PPP?* Uses LLC toestablishthelink* Defaultserialencapsulation* Support multiplelayer 3 protocols* Offerstwotypesof authentication; PAP and CHAPCorrect answer:C DPPP is notthe defaultencapsulation and uses LCP not LLC toestablishthelink. Itsupport multiplelayer 3 protocols and supports authentication.

204. Identify 3 characteristicsof a connection oriented protocol?* Path determination* Flowcontrol* Acknowledgements* Useshop count as metric* 3 step handshakeCorrect answer:B C EConnection oriented protocols must firstestablishtheconnection (3 step handshake),employ methodsto acknowledgethe receiptof data (acknowledgements) and slow downthe flowof data if required (flowcontrol).

205. What isthe maximum hop count for IP RIP?* Infinity* 16* 15* 1Correct answer:C

206. isthe maximum hop count, underscoring thesizelimitation of RIP.207. What is Ciscos defaultencapsulation method on serial interfaces?

* ANSI* Cisco* Q933a* HDLC


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Correct answer:DCiscos implementation of HDLC isonly compatiblewith Cisco routers. It isthe defaultencapsulation type forserial interfaces.

208. Whichofthe following is a characteristicof a switch, but notof a repeater?* Switches forward packetsbased on the IPX or IP address in the frame

* Switches forward packetsbased on the IP address in the frame* Switches forward packetsbased on the MAC address in the frame* Switches forward packetsbased only on the IP address in the packetCorrect answer:CA repeater regeneratesthesignal it receives, a switch makes decisionsbased upon MACaddressesto determinewhether a frameshould be forwarded. Repeaters forward allpackets.

209. Ping useswhich Internetlayer protocol?* RARP* ICMP* ARP

* FTPCorrect answer:BInternet Control Message Protocol- ICMP is a management protocol and messagingservice provider for IP. Its messages arecarried as IP datagrams.ICMP is used in the following events:Destination Unreachable- If a routercannotsend an IP packet any further, it uses anICMP echotosend a messagebacktothesender notifying itthatthe remote node isunreachable.Buffer Full- If a routers memory buffer is full ICMP willsend out a messagetotheoriginator.Hops- Each IP datagram is assigned a path. Thisconsistsofhops. If it goesthroughthemaximum numberofhops, the packet is discarded and the discarding routersends anICMP echotothehost.Ping - Ping use ICMP echo messagetocheckconnectivity.

210. Which istrue regarding store-and-forward switching method?* Latency varies depending on frame-length* Latency isconstant* It is default for all Ciscoswitches* Itonly readsthe destination hardware addressbefore forwarding the frameCorrect answer:AStore-and-Forward switching copiestheentire frame into itsbuffer and computestheCRC. If a CRC error is detected, the frame is discarded, or ifthe frame is a runt (lessthan64 bytes including the CRC) or a giant (morethan 1518 bytes including the CRC). TheLAN switchthen looks up the destination address in itsswitching table and determinestheoutgoing interface. The frame isthen forwarded totheoutgoing interface. CiscoCatalyst 5000 switches usesthe Store-and-Forward method. The problem with Store-and-Forward switching islatency is increased. Latency also varieswiththesizeofthe frame.Thelargerthe frame, the morelatency associated. Thisofcourse is duetothe factthattheentire frame iscopied into itsbufferbeforebeing forwarded.


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211. Whichthreeofthe following aretruestatements aboutconnection-orientedsessions?* Thesegments delivered are acknowledged backtothesender upon their reception* Any segments not acknowledged the are retransmitted by the receiver* A manageable data flow is maintained in orderto avoid congestion, overloading and

lossof any data* Segments aresequenced back intotheir properorder upon arrival attheir destinationCorrect answer:A C DConnection-oriented services are useful fortransmitting data from applicationsthat areintolerantof delays and packet re-sequencing. FTP and Telnet applications arebased onconnection-oriented services aswell assome voice and video programs. Any segmentthat is not acknowledged by the received is retransmitted by thesender.

212. What does a metricof 16 hops representwhen using RIP?* Numberofhopstothe destination* Destination unreachable* Numberof routers

* BandwidthCorrect answer:BRouting Information Protocol (RIP) is a distance vector routing protocolthat used hopcount as its metric. The maximum hop count is 15, 16 hops isconsidered unreachable.RIP updates arebroadcastevery 30 secondsby default. RIP has an administrativedistanceof 120.

213. You need tocome up with a TCP/IP addressing scheme for yourcompany. Whichtwo factors must you considerwhen you definethesubnet mask forthe network?* Thelocation of DHCP servers* The volumeoftrafficon eachsubnet* The numberofsubnetson the network* Thelocation ofthe default gateway* The numberofhost IDson eachsubnet

Correct answer:C EWhen determining whichsubnet maskto use, you must determinehow many hosts andhow many subnets are required.

214. What isthe differencebetween TCP and UDP?* TCP isconnection-oriented; UDP uses acknowledgementsonly* TCP isconnection-oriented; UDP isconnectionless* Both TCP and UDP areconnection-oriented, butonly TCP useswindowing* TCP and UDP bothhavesequencing, but UDP isconnectionlessThecorrect answer(s): BTCP provides guaranteed connection oriented delivery of packets, UDP does not.

215. What doesthe S mean when looking atthe routing table?* Statically connected* Directly connected* Dynamically attached* Shutdown route


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* Full-duplex NIC cardsCorrect answer:C DFull duplex ethernet requiresthatthe NIC supports full-duplex, and loopbackandcollision detection are disabled.

222. Whichlayer is responsible for determining ifsufficient resources forthe intendedcommunication exists?* Application* Network* Session* Presentation* TransportCorrect answer:ATheApplication layer is responsible for determining ifsufficient resources fortheintended communication exists.

223. What arethe 2 functionsofthe Data LinkMaclayer?* Handles accesstoshared media

* Manages protocol accesstothe physical networkmedium* Provides SAPs forhigherlevel protocols* Allows multiple devicesto uniquely identify one anotheron the data linklayerCorrect answer:BDMedia Access Control (MAC) -The MAC sublayer manages protocol accesstothephysical networkmedium. The IEEE MAC specification defines MAC addresses, whichallow multiple devicesto uniquely identify one another atthe data linklayer.

224. Describe End to End networkservices: (Choose allthat apply)* Best Routeselection* Accomplished Segmentby Segment, eachsegment is autonomous* Flow Control & Data Integrity* Bestefforts packet deliveryCorrect answer:A B C DAllofthe above End to End networkservices.

225. Whichofthe following providecorrect information about a protocol atthetransportlayerofthe OSI model?* UDP - Provides Connectionless datagramsservice* TCP - Provides Connection Oriented Services* SMTP - Provides Mail Exchange* IP - Route determination* TCP - Provides Flow Control and Error Checking* FTP - Transfersof FilesCorrect answer:A B EOnly TCP and UDP workatthe Transportlayerofthe abovechoices. IP is a Networklayer protocol. SMTP and FTP are application layer protocols.

226. Which protocolworks atthe Internetlayer and is responsible for making routingdecisions?* UDP* IP* TCP


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Correct answer:B ETCP and UDP operate atthe Transportlayer.

231. LAN stands forwhichofthe following?* LocalArea Network* LocalArena Network

* LocalArea News* LogicalArea NetworkCorrect answer:ALAN stands for LocalArea Network

232. Choosethree reasonswhy the networking industry uses a layered model:* It facilitatessystematictroubleshooting* It allowschanges in onelayertooccurwithoutchanging otherlayers* It allowschangestooccur in alllayerswhen changing one protocol* Itclarifieshowto do it ratherthan what general function tobe done* Itclarifieswhat general function istobe done ratherthan howto do itCorrect answer:A B E

Why dowehave a Layered Model?1) It reducescomplexity2) Allows for a standardized interface3) Facilitates modularengineering4) Ensures interoperabletechnology5) Acceleratesevolution6) Simplifiesteaching and learning

233. Whichlayer is responsible for identifying and establishing the availability oftheintended communication partner?* Application* Presentation* Transport* Session* NetworkCorrect answer:ATheApplication layer performsthe following: Synchronizing sending and receivingapplications. Program-to program communication. Identify and establishthe availabilityofthe intended communication partner, and determine ifsufficient resourcesexist forthecommunication. Popular application protocols include WWW, SMTP, EDI, FTP, Telnet,and SNMP

More than 200 Que. of CCNA By Mangesh Kakade 9730741029

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