CCST Subnetting and CIDR Notation 2

Question 1

A company needs 5 subnets with at least 25 hosts each. Which subnet mask is most appropriate?

Accepted Answer

/27

Answer

/28

Answer

/29

Answer

/26

Question 2

What is the total number of IP addresses (including network and broadcast) in a /29 subnet?

Accepted Answer

8

Answer

6

Answer

16

Answer

4

Question 3

Which statement best describes Variable Length Subnet Masking (VLSM)?

Accepted Answer

Different subnets can use different prefix lengths based on requirements

Answer

All subnets must be the same size

Answer

VLSM only applies to Class A addresses

Answer

VLSM requires all subnets to use the same prefix length

Question 4

What is the dotted-decimal subnet mask for the /20 prefix length?

Accepted Answer

255.255.240.0

Answer

255.255.248.0

Answer

255.255.224.0

Answer

255.255.252.0

Question 5

How many subnets can be created by borrowing 3 bits from the host portion of a subnet?

Accepted Answer

8

Answer

6

Answer

4

Answer

16

Question 6

What is the valid host range for the network 172.16.0.0/16?

Accepted Answer

172.16.0.1 to 172.16.255.254

Answer

172.0.0.1 to 172.255.255.254

Answer

172.16.0.0 to 172.16.255.255

Answer

172.16.1.0 to 172.16.254.255

Question 7

Which RFC defines the private IPv4 address ranges used in internal networks?

Accepted Answer

RFC 1918

Answer

RFC 2460

Answer

RFC 1519

Answer

RFC 793