Question

Which of the following is not a feature of subnets?

		Allow organizations to re-use public IP addresses
		Allow access restriction for network resources
		Break up broadcast domains
		Enable routing between networks

The 123.45.67.0/27 network has how many bits available for hosts?

		8
		5
		24
		27

The subnet 77.88.99.0/24 has how many available hosts?

		254
		256
		126
		65,536

What is the network ID for the host with the IP address 168.336.10.44/29?

		169.226.10.0
		169.226.0.0
		169.226.10.47
		169.226.10.40

The broadcast address in the subnet 154.68.44.0/24 is

		255.255.255.0
		154.68.44.0
		154.68.44.255
		0.0.0.0

The number of assignable hosts in a subnet is

		number of addresses in network
		[number of addresses in network] - 2
		[number of addresses in network] - 4
		256 - [number of addresses in network]

Answer 1

Q1

Subnets do not enable routing as it is already there without subnets.

Hence the correct answer is D

Q2

.Available bits are 32 - 27 = 5

Q3

Number of available bits for hots are 32-24 = 8

Hence the hosts possible are 2^8 = 256

Q4 Network ID is the first 29 bits of the IP address

Making last 3 bits 0 we get the correct answer to be

169.226.10.40

Q5

The broadcast address is usually the last address hence the correct answer is 154.68.44.255

Q6

The correct answer is B as 2 addresses are reserved and the rest can be assigned to the hosts