Logo

BIT Network and Data Communications

bitsemester 4
Chapter Wise NotesQuestion BanksSyllabusChapter Wise QuestionsVivaPractical

BIT Semester 4 Network and Data Communications Question Paper 2079 – Solved

tu-logo

Institute of Science and Technology

2079

Bachelor in Information Technology

Network and Data Communications

BIT254

Full Marks: 60

Pass Marks: 24

Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.

"Section B"

Short Answer Questions Attempt any EIGHT questions.

[8 × 5 = 40]

1.

Differentiate between switch, router, and hub.

[5]
2.

What are the major differences between noise, distortion and attenuation?

[5]
3.

A slotted ALOHA network transmits 200-bit frames using a shared channel with a 200-kbps bandwidth. Find the throughput if the system considering all stations together produces 250 frames per second. What do you mean by vulnerable time of slotted ALOHA?

[4 + 1]
4.

Why do we use NAT? Explain its different types.

[3 + 2]
5.

Describe Quality of Service. What are its practical significances?

[4 + 1]
6.

What is FTP and how does it work?

[2 + 3]
7.

Explain Time Division Multiplexing with required figure.

[5]
8.

What is MAC-address? The message sequence is 1101011011 and generator polynomial \(G(X) = x^4 + x + 1\). Calculate the transmitted encoded frame.

[2 + 3]
9.

Write short notes on:

a. Open-loop

b. POP.

[2 × 2.5 = 5]