Mock Exam #45

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Mock Exam #45

Computer Networks
Prepared By Megha V
Asst Professor Computer Science

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1. Which of the following functionalities must be implemented by a transport protocol over and above the network protocol?

1 point

a) Recovery from packet losses

b) Detection of duplicate packets

c) Packet delivery in the correct order

d) End to end connectivity

Clear selection

2. If a class B network on the Internet has a subnet mask of 255.255.248.0, what is the maximum number of hosts per subnet?

1 point

a) 1022

b) 1023

c) 2046

d) 2047

Clear selection

3. Which of the following transport layer protocol is used to support electronic mail?

1 point

a) SMTP

b) IP

c) TCP

d) UDP

Clear selection

4. Unmodulated signal coming from a transmitter is known as

1 point

a) Carrier signal

b) base band signal

c) primary signal

d) none of the above

Clear selection

5. The hamming distance between 0001111 and 010011 is

1 point

a) 1

b) 2

c) 3

d) 4

Clear selection

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