CCST Subnetting and CIDR Notation 3

Question 1

The host 192.168.1.130 has a subnet mask of 255.255.255.192. Which network does this host belong to?

Accepted Answer

192.168.1.128

Answer

192.168.1.0

Answer

192.168.1.64

Answer

192.168.1.192

Question 2

What is the CIDR prefix length for the subnet mask 255.255.252.0?

Accepted Answer

/22

Answer

/21

Answer

/23

Answer

/24

Question 3

A network administrator needs subnets from 192.168.5.0/24 that each support exactly 14 usable hosts. Which subnet mask should be used?

Accepted Answer

/28

Answer

/27

Answer

/29

Answer

/26

Question 4

What is the wildcard mask corresponding to the subnet mask 255.255.255.240?

Accepted Answer

0.0.0.15

Answer

0.0.0.16

Answer

0.0.0.255

Answer

0.0.15.255

Question 5

Which of the following IP addresses falls within the Class B address range?

Accepted Answer

172.16.1.1

Answer

10.10.10.10

Answer

192.168.1.1

Answer

224.0.0.1

Question 6

How many usable host addresses are available in a /30 subnet?

Accepted Answer

2

Answer

4

Answer

6

Answer

8

Question 7

When a router determines which network a destination IP address belongs to, what operation does it perform?

Accepted Answer

ANDing the destination IP address with the subnet mask

Answer

ARP lookup in the neighbor table

Answer

Checking the TTL field in the IP header

Answer

Performing a DNS query for the destination