Question

1. Given a class C network address: 210.90.100.0

Your manager has asked you to build 5 subnets from 210.90.100.0. Each of the subnet

would serve the four existing departments and the fifth one for the future plan

next year.

The number of bits to borrow from the host portion of the network:

The number of resulting subnets:

Present your network in a tabulated format with headers as shown below

Subnet ID First address                  Last but one address Broadcast address

2. 
   Assume the HTTP packet has 100 bytes in addition to the 10-byte URL.What is the transmission efficiency of a 10-byte Web request sent using HTTP, TCP/IP, and Ethernet?

Hint: Remember Efficiency = user data/total transmission size

Answer 1

As per the HomeworkLib policy on multiple questions, answer to first part is being given here:

in order to build 5 subnets we need to borrow 3 bits from host portion as: 2²<5<2³

Hence the required details are as the following:

Subnet ID	First Address	Last Address	Broadcast Address
210.90.100.0/27	210.90.100.1	210.90.100.30	210.90.100.31
210.90.100.32/27	210.90.100.33	210.90.100.62	210.90.100.63
210.90.100.64/27	210.90.100.65	210.90.100.94	210.90.100.95
210.90.100.96/27	210.90.100.97	210.90.100.126	210.90.100.127
210.90.100.128/27	210.90.100.129	210.90.100.158	210.90.100.159