Answer to Question #214337 in Computer Networks for sisa

Question

a)    Music Class

For the host IP address, identify the prefix

192.168.20.10/??

Identify the LSB (least significant bit)

Identify the Subnet ID to which the host belongs

 

Identify the broadcast address

 

Identify the usable range of host IP addresses

 

Answer 1

For 50 hosts, block size which fulfills the host requirement $=64= 2^6$

For block size 64, number of hosts bits $=2^6 = 6$ hosts bits (least significant bits)

For 5 hosts bits, number of network bits $=32-6 =26$ network bits

When network bit is 26, sub-net mask =26 =8|8|8|2 = 255.255.255.92

When network IP is 192.168.20.0 and block size is 64 then broadcast IP = (192.168.20.0+64) - 1 = 192.168.20.63

When network IP is 192.168.20.0 and broadcast IP is 192.168.20.63 then IP range = 192.168.20.1 - 192.168.20.62 (usable IP starts just after network IP and ends just before broadcast IP)