Computer Networks PYQ 2024-25 AKTU Question Paper

AKTU · BTECH · Semester 6 · Computer Networks · Session 2024-25 · PYQ

AKTU Computer Networks previous year question paper 2024-25 for B.Tech Semester 6. Covers Introductory Concepts and Physical Layer, Link Layer and Medium…

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Computer Networks AKTU syllabus

  1. Unit 1: Introductory Concepts and Physical Layer
  2. Unit 2: Link Layer and Medium Access Control
  3. Unit 3: Network Layer
  4. Unit 4: Transport Layer
  5. Unit 5: Application Layer

Questions in Computer Networks AKTU PYQ 2024-25

  1. Q1a. Determine the number of links needed for a fully connected mesh topology with 10 nodes. (2 marks, 2024-25)
  2. Q1b. A signal is transmitted with an initial power of 2W and experiences an attenuation of -3 dB. Calculate the received power. (2 marks, 2024-25)
  3. Q1c. In what situations, contention-based MAC Protocols are suitable? (2 marks, 2024-25)
  4. Q1d. Illustrate the concept of 'piggybacking'. (2 marks, 2024-25)
  5. Q1e. List the functions of all layers in OSI reference model using a well labelled diagram. (2 marks, 2024-25)
  6. Q1f. List various policies that are used for congestion control. (2 marks, 2024-25)
  7. Q1g. What is the role of stub in Remote Procedure Call (RPC) mechanism? (2 marks, 2024-25)
  8. Q2a. A bit stream x8+x6+x3+x2+x+1 is transmitted using CRC method. The generator polynomial is x4+x2+x+1. Show the actual codeword transmitted at the receiver side. Suppose the third bit from left is inverted during transmission. Show that this error is detected at the receiver end. (7 marks, 2024-25)
  9. Q2b. A company is assigned the address block 192.168.10.0/24. Divide it into 4 subnets and specify subnet ranges. (7 marks, 2024-25)
  10. Q2c. Define Leaky Bucket Algorithm. How does Token Bucket Algorithm provide better traffic shaping control? (7 marks, 2024-25)
  11. Q2d. Explain public key cryptography. List its advantages and disadvantages. Explain the working of RSA algorithm with suitable example. (7 marks, 2024-25)
  12. Q2e. Describe the following: (i) SNMP (ii) DNS (iii) Data Compression (7 marks, 2024-25)
  13. Q3a. Illustrate the concept of slotted ALOHA with suitable diagram. Measurement of slotted ALOHA channel with infinite number of users shows that 10% of slots are idle. Calculate i) What is the channel load? ii) What is the throughput? (7 marks, 2024-25)
  14. Q3b. A 4 MB frame is transmitted over a 1000 KM link with 2 Mbps bandwidth. Propagation speed is 2x10^8 m/s. Compute total delay (latency) if there are 5 routers, each with 1 us processing and 2 us queuing delay. (7 marks, 2024-25)
  15. Q4a. Discuss how the count-to-infinity problem occurs in Distance Vector Routing. Suggest any one method to mitigate it. (7 marks, 2024-25)
  16. Q4b. For the following subnet, distance vector routing is used and the vectors that have just come into router C: from B: (5, 0, 8, 12, 6, 2); from D: (16, 12, 6, 0, 9, 10); and from E: (7, 6, 3, 9, 0, 4). The measured delays to B, D and E are 6, 3, and 5 respectively. Calculate C's new routing table.… (7 marks, 2024-25)
  17. Q5a. Explain new features in IPv6 over IPv4. What is the purpose of multiple headers? Explain in brief, how IPv6 handles multiple headers. (7 marks, 2024-25)
  18. Q5b. Explain the following: (i) RARP (ii) DHCP (iii) VPN (7 marks, 2024-25)
  19. Q6a. What is Silly Window Syndrome? Explain how sender and receiver can avoid it using Nagle's and Clark's algorithms. (7 marks, 2024-25)
  20. Q6b. Explain TCP segment header. Also, illustrate the TCP connection management. (7 marks, 2024-25)
  21. Q7a. Explain how SMTP can handle transfer of videos and images? Also, explain the advantages of IMAP4 over POP3 mail access protocols. (7 marks, 2024-25)
  22. Q7b. Explain the following: (i) FTP (ii) HTTP (iii) Telnet (7 marks, 2024-25)

AKTU paper codes: BCS603, KCS603, RCS603, NCS601

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