Guía Direccionamiento IP

1. Which of the following are private IP networks?

a. 172.31.0.0

b. 172.32.0.0

c. 192.168.255.0

d. 192.1.168.0

e. 11.0.0.0

2. Which of the following is the result of a Boolean AND between

IP address 150.150.4.100 and mask 255.255.192.0?

a. 1001 0110 1001 0110 0000 0100 0110 0100

b. 1001 0110 1001 0110 0000 0000 0000 0000

c. 1001 0110 1001 0110 0000 0100 0000 0000

d. 1001 0110 0000 0000 0000 0000 0000 0000

3. Which of the following shows the equivalent of subnet mask

255.255.248.0,

but in prefix notation?

a. /248

b. /24

c. /28

d. /21

e. /20

f. /23

4. If mask 255.255.255.128 were used with a Class B network,

how many subnets could exist, with how many hosts per subnet,

respectively?

a. 256 and 256

b. 254 and 254

c. 62 and 1022

d. 1022 and 62

e. 512 and 126

f. 126 and 510

5. A Class B network needs to be subnetted such that it supports

100 subnetsand 100 hosts/subnet. For this design, if multiple

masks meet those design requirements, the engineer should

choose the mask that maximizes the number of hosts per subnet.

Which of the following masks meets the design criteria?

a. 255.255.255.0

b. /23

c. /26

d. 255.255.252.0

6. If mask 255.255.255.240 were used with a Class C network,

how many subnets could exist, with how many hosts per subnet,

respectively?

a. 16 and 16

b. 14 and 14

c. 16 and 14

d. 8 and 32

e. 32 and 8

f. 6 and 30

7. Which of the following subnet masks lets a Class B network

have up to 150 hosts per subnet, and 164 subnets?

a. 255.0.0.0

b. 255.255.0.0

c. 255.255.255.0

d. 255.255.192.0

e. 255.255.240.0

f. 255.255.252.0

8. Which of the following subnet masks let a Class A network

have up to 150 hosts per subnet and up to 164 subnets?

a. 255.0.0.0

b. 255.255.0.0

c. 255.255.255.0

d. 255.255.192.0

e. 255.255.252.0

f. 255.255.255.192

9. Which of the following IP addresses are not in the same

subnet as 190.4.80.80, mask 255.255.255.0?

a. 190.4.80.1

b. 190.4.80.50

c. 190.4.80.100

d. 190.4.80.200

e. 190.4.90.1

f. 10.1.1.1

10. Which of the following IP addresses is not in the same subnet

as 190.4.80.80, mask 255.255.240.0?

a. 190.4.80.1

b. 190.4.80.50

c. 190.4.80.100

d. 190.4.80.200

e. 190.4.90.1

f. 10.1.1.1

11. Which of the following IP addresses are not in the same

subnet as 190.4.80.80/25?

a. 190.4.80.1

b. 190.4.80.50

c. 190.4.80.100

d. 190.4.80.200

e. 190.4.90.1

f. 10.1.1.1

12. Each of the following answers lists a dotted decimal number

and a subnet mask. The dotted decimal number might be a valid

IP address that can be used by a host or it might be a subnet

number or broadcast address. Which of the answers show an

address that can be used by a host?

a. 10.0.0.0, 255.0.0.0

b. 192.168.5.160, 255.255.255.192

c. 172.27.27.27, 255.255.255.252

d. 172.20.49.0, 255.255.254.0

13. Which of the following are valid subnet numbers in network

180.1.0.0 when using mask 255.255.248.0?

a. 180.1.2.0

b. 180.1.4.0

c. 180.1.8.0

d. 180.1.16.0

e. 180.1.32.0

f. 180.1.40.0

14. Which of the following are not valid subnet numbers in

network 180.1.0.0 when using mask 255.255.255.0?

a. 180.2.2.0

b. 180.1.4.0

c. 180.1.8.0

d. 180.1.16.0

e. 180.1.32.0

f. 180.1.40.0