Computer Networks 2078

Section A

1. What is transmission media? How do guided media differ from unguided media? Explain different types of guided media in detail.(1+2+7)

2. What is flow control? Explain Stop-and-Wait ARQ with suitable example. How is it different from Go-Back-N ARQ? (2+5+3)

3. Explain link state routing with example.(10)

Section B

Attempt any Eight questions.(8*5=40)

4. Explain client/ server network. How is it different from peer to peer network? (3+2)

5. What is CSMA / CD ? Why is there no need for CSMA/CD on a full-duplex Ethernet LAN?(2.5+2.5)

6. Write subnet ID and broadcast address of each subnet if you divide a class B network 150.10.0.0-150.10.255.255) in 4 different subnets. What is the new subnet mask?

7. Explain the structure of IPv6 address. Compare IPv6 address with IPv4 address.(3+2)

8. What is virtual circuit network? Explain ATM as a virtual circuit wide area network.(2+3)

9. What is routing table? Differentiate static routing table with dynamic routine table.(2+3)

10. What is open-loop congestion control? Compare it with closed-loop congestion control.(2+3)

11. What are the different approaches for multimedia streaming? Explain.(5)

12. Write short note on(any two)(2*2.5)

a. Blackbone network

b. ISDN

c. ALOHA