Resources

   

Lessons

   

Quizzes

   

Assignments

   

Discussion

   

Completion

 

Wireless Networking

completion: final exam results

Final Exam

Evaluation of your answers:

1. The most common wire used in wired computer networks is what?

You chose: CAT 5.

Correct! The most common wire used in wired computer networks is CAT 5.

2. Which of the following terms refers to the device that provides an access point for wireless devices?

You chose: WAP.

Correct! WAP stands for Wireless Access Point, and it provides access for wireless devices.

3. Which of the following definitions best describes a device driver?

You chose: A software component that enables hardware to interact with the operating system.

Correct! A device driver, sometimes just called a driver, enables hardware to interact with the operating system.

4. Which of the following is an example of a spreading technique for wireless networking?

You chose: Orthogonal Frequency Division Multiplex, or OFDM.

Correct! OFDM is a spreading technique used in wireless networking.

5. Which of the following is a time-based measure?

You chose: Frequency.

Correct! Frequency is the measure of complete waves over a given period of time, and therefore is a time-based measure.

6. Hertz is a measure of which of the following?

You chose: Bytes per second.

Incorrect. Hertz is not a measure of bytes per second. The correct answer is: Cycles per second.

7. What does the term PAN stand for?

You chose: Personal Area Network.

Correct! PAN stands for Personal Area Network, a phrase often associated with Bluetooth devices.

8. Which of the following is the maximum bandwidth rating for 802.11a?

You chose: 54 Mbps.

Correct! 802.11a has a maximum bandwidth rating of 54 Mbps.

9. Which organization manages the Bluetooth standard?

You chose: Bluetooth SIG.

Correct! The Bluetooth standard is managed by the Bluetooth Special Interest Group (SIG).

10.Which of the following describes the capability of a mini-DHCP server?

You chose: It assigns IP addresses to computers on the local private network.

Correct! With a mini-DHCP server, you can just plug in new computers or connect new wireless devices without worrying about IP addresses, subnet masks, or other configuration parameters that mini-DHCP servers do automatically.

11.What is the function of a firewall?

You chose: To protect a private network from intrusion by outside

users or software.

Correct! Firewalls prevent outsiders from peeking in at your network by filtering certain Internet traffic before it can reach your private network.

12.What is the function of a NAT?

You chose: To translate between internal, private IP addresses and an external Internet IP address.

Correct! A NAT enables you to easily connect multiple computers to a single Internet connection, because they handle all the translation-based requirements of sending data back and forth through that single Internet connection.

13.You would encounter a piconet in which of the following technologies?

You chose: Bluetooth.

Correct! A scatternet is a collection of two or more interconnected Bluetooth piconets.

14. In a Wi-Fi network, the SSID performs what function?

You chose: It uniquely identifies a wireless network.

Correct! A passkey uniquely identifies a wireless network.

15.Bluetooth is considered which of the following?

You chose: A short-range wireless technology.

Correct! Bluetooth has a maximum range of about 33 feet, which makes it a short-range wireless technology.

16.With one-way satellite Internet access, what means of transmission is used for uploading information (from the computer to the Internet)?

You chose: Satellite.

Incorrect. One-way satellite Internet access uses the satellite for downloading information (from the Internet to the computer) but does not use satellite for uploading. The correct answer is: Dial-up modem.

17.What is the definition of latency?

You chose: The time it takes for a packet to traverse a network.

Correct! Latency is defined as the time it takes for a packet to traverse a network.

18.Which of the following cellular generations promises the most bandwidth?

You chose: 3G.

Correct! 3G promises to deliver broadbandlike bandwidth over cellular signals, and as such, promises the most bandwidth of any available cellular generations to date.

19.What would you find in a network topology drawing?

You chose: A map of logical network connections.

Correct! Network topology is a map of logical network connections.

20.You are adding a wireless NIC to a computer. The WAP to which your computer will connect is compliant with 802.11b. Which of the following wireless NICs should you choose to ensure compatibility?

You chose: An 802.11g NIC.

Correct! The 802.11g standard is compatible with 802.11b and 802.11g devices, so the 802.11g NIC is compatible with the 802.11b WAP.

21.The Smith family is buying a new WAP. Mrs. Smith needs to connect to her corporate network using a virtual private network connection. Which of the following is a critical feature for the WAP?

You chose: VPN pass-through.

Correct! Since Mrs. Smith must connect to her corporate network using a virtual private network connection (VPN), the Smith WAP must have VPN pass-through capability.

22.Which of the following is another name for a WAP?

You chose: Base Station.

Correct! Some manufacturers, such as Microsoft, use the term Base Station when referring to their WAPs.

23.For wireless networking in business environments, which of the following is a primary concern?

You chose: Extending wireless connectivity.

Correct! Extending wireless connectivity is one of the two primary concerns for wireless connectivity in business environments. The other primary concern is enforcing security.

24.You currently have an 802.11g WAP set to channel three. If you add another WAP, which channel should you set the second WAP to reduce the likelihood of interference?

You chose: Eight.

Correct! Neighboring 802.11b/g WAPs must have five or more channels of separation. Channels three and eight have exactly five channels of separation.

25.What is the definition of a preferred network?

You chose: A wireless network to which you have previously authenticated and connected.

Correct! A preferred network is wireless network to which you have previously authenticated and connected.

26.WZC stands for what?

You chose: Windows Zero Configuration.

Correct! WZC does indeed stand for Windows Zero Configuration.

27.What is another term for WEP key?

You chose: Wireless key.

Correct! Wireless key is another term for WEP key.

28.Your friend John has created an Ad Hoc network called ALPHA. Your computer name is CRUSHER, and your username is GAMER. When you connect to the Ad Hoc network, which network name should you look for?

You chose: ALPHA.

Correct! The network name ALPHA will be used by all devices connecting to the Ad Hoc network.

29.How do you make a Bluetooth device visible to other nearby Bluetooth devices?

You chose: Put it in discovery mode.

Correct! Putting a device into discover mode makes it visible to nearby Bluetooth devices. Many devices must specifically be placed in discovery mode.

30.Which profile enables a Bluetooth headset to communicate and place calls with a Bluetooth cell phone?

You chose: Hands Free.

Correct! The Hands Free profile for Bluetooth enables communication

and call placement with a headset or with any other devices, such as an automobile.

31.When a device is spoofed, what happens?

You chose: Another device masquerades as that device.

Correct! Spoofing is the act of masquerading as another device.

32.What is a hotspot district?

You chose: A region where an entire section of town is Wi-Fi enabled in an effort to attract business activity.

Correct! A hotspot district is a section of a town that is Wi-Fi enabled in an effort to attract business activity.

33.What is an enterprise network?

You chose: A network found in large organizations.

Correct! Enterprise networks are networks found in large organizations, such as companies or government agencies with thousands of computers.

34.What is meant by 'the last mile'?

You chose: The copper cabling between a house and the telephone company’s central office.

Correct! The last mile is the copper cabling between the central office

and each home.

35.Which organization limits the legal power of wireless device antennas?

You chose: FCC.

Correct! The Federal Communications Commission is a regulatory agency responsible for many legal limits associated with wireless transmissions, including placement of limits on wireless device antennas.

36.When cellular carriers updated their networks in the 1990s, they concentrated on which of the following technologies?

You chose: Voice.

Correct! When the cellular carriers updated their networks in the 1990s, they concentrated solely on voice and ignored data. Many industry analysts believe the move was a grave mistake.

Your score: 94% (out of 100%). Excellent job!

Final ExamDate submitted: 03/11/2009

Please print this evaluation for your records.

resources | lessons | quizzes | assignments | discussion | completion Course content © 1997-2009 by David Iseminger. All rights reserved. Reproduction or redistribution

of any course material without prior written permission is prohibited.