Download PTU B-Tech CSE-IT 2020 Dec 4th Sem 77538 Computer Nertworks Question Paper

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B.Tech. (Information Technology) (2018 Batch) (Sem.-4)

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INSTRUCTIONS TO CANDIDATES :

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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

Write briefly :

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1. What are protocols and standards?
2. Differentiate between Wired LAN and Wireless LANs.
3. Explain in brief about the term Block Coding.
4. Define the term Flow Control.
5. What is the function of DHCP?

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6. List various Unicast routing protocols.
7. What is an IP address? What is the use of an IP address?
8. Explain in brief about SCTP congestion control.
9. Differentiate between TCP and UDP.
10. Explain in brief about the term Bluetooth.

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SECTION-B

1. Write a detailed note on following transmission media :
   a) Twisted pair
   b) Co-axial cable
2. Write a detailed note on CSMA/CA.

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3. Explain in detail about ARP.
4. Write a detailed note on User Datagram Protocol (UDP).
5. Explain in brief about Telnet and File Transfer Protocol (FTP) in brief.

SECTION-C

1. Write a detailed note on the OSI model. (10)

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2. Write a detailed note on Token Bucket Algorithm. (10)
3. Explain in detail about the following terms in reference to application Layer.
   a) DDNS (3)
   b) EMAIL (4)
   c) HTTP (3)

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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.