NIELIT 2017 OCT Scientific Assistant A (IT) - Section B: 25

Question

The address of a class $B$ Host is to be split into subnets with a $3$-bit subnet number. What is the maximum number of subnets and maximum number of hosts in each subnet?

• A. $8$ subnets and $262142$ hosts
• B. $6$ subnets and $262142$ hosts
• C. $6$ subnets and $1022$ hosts
• D. $8$ subnets and $1024$ hosts

Answer 1

CLASS B MASK

11111111.11111111.00000000.00000000

BUT according to question we want three bit subnet then mask

11111111.11111111.11100000.00000000

n general, the number of available hosts on a subnet is $2^{h}−2$, where h is the number of bits used for the host portion of the address. The number of available subnet is $2^{n}$, where n is the number of bits used for the network portion of the address.

Number of subnet=$ 2^{3}$=8

Number of host in each subnet=$2^{13}-2$=8190

none of the ans