Download PTU B-Tech CSE-IT 2020 Dec 4th Sem 56606 Computer Networks I Question Paper

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Roll No. ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ ‘ Total No. of Pages : 02

Total No. of Questions : 18

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B.Tech.(CSE)/(IT) (2012 to 2017) (Sem.-4)

COMPUTER NETWORKS-I

Subject Code : BTCS-403

M.Code : 56606

Time : 3 Hrs. Max. Marks : 60

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INSTRUCTIONS TO CANDIDATES :

1. SECTION-A is COMPULSORY consisting of TEN questions carrying TWO marks each.
2. SECTION-B contains FIVE questions carrying FIVE marks each and students have to attempt ANY FOUR questions.
3. SECTION-C contains THREE questions carrying TEN marks each and students have to attempt ANY TWO questions.

SECTION-A

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Answer briefly :

1. Differentiate between LAN, MAN and WAN.
2. Differentiate between broadcast and point-to-point networks.
3. Explain in brief the term Distortion in reference to transmission impairments.
4. What are the advantages of Twistedpair-as a transmission media?

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5. Explain the term hamming code in reference to error detecting codes.
6. Explain the term Framing-in brief.
7. Compare pure and slotted ALOHA protocols.
8. Explain the term subnetting in brief.
9. Explain the term De-multiplexing in brief.

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10. What do you mean by Domain Name System? Discuss.

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SECTION-B

Explain the following in brief:

1. a) Frequency Division Multiplexing
   

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   b) Time Division Multiplexing
2. a) Write a brief note on PPP protocol.
   b) Explain in brief about any two Network topologies.
3. Write a detailed note on static and dynamic channel allocation.
4. Write a brief note on TCP and UDP protocols. Also compare TCP and UDP protocols.

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5. Write a brief note on E-mail and FTP.

SECTION-C

1. Write a detailed note on the ISO-OSI reference model.
2. Explain the link state Routing Algorithm with an example.
3. Write a detailed note on Checksum and CRC-in reference to Error detection and Correction codes.

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NOTE : Disclosure of Identity by writing Mobile No. or Making of passing request on any page of Answer Sheet will lead to UMC against the Student.

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