Computer Networks I Internal Assignment Test 2025

______ refers to the variation in the packet arrival time.

• Accuracy

• Timeliness

• Jitter

• Delivery

Signals with a frequency below 2 MHZ use __________ propagation.

• ground

• line-of-sight

• sky

• none of the above

_________ Cables carry signals in the form of light.

• Twisted Pair

• Fiber optic

• Coaxial

• All the above

_________ are used for short-range communications such as those between PC and a

peripheral device.

• Radiowaves

• Microwaves

• Infrared waves

• None of the above

Transmission media lie below the _______ layer.

• Physical

• Network

• Transport

• Datalink

The Hamming distance between 100 and 001 is _________.

• 0

• 1

• 3

• 2

___________ is the process of adding 1 extra byte whenever there is a flag or escape

character in the text.

• Bit stuffing

• Byte stuffing

• Fixed size framing

• Variable size framing

The stop-and-wait protocol is used for _____________ and _______________.

Which of the following is/are connecting device?

• Router

• Switch

• Modem

• None of the above

In 5 nodes network which formed a mesh topology, how many duplex-mode links are needed?

• 5

• 9

• 10

• 20