• Attempt any five questions.
• All questions carry equal marks.
What is Computer Network (CN)? Give its architecture and briefly explain each components of CN.
Draw the ISO-OSI reference model and explain the functionalities of each layer in detail.
What is the need of Flow control? Explain the common approaches for flow control at data link layer.
Discuss the following: (i) Go-Back-N (ii) Hybrid ARQ.
Give the difference between Connection oriented and connection less services.
Explain the working of ARP and RARP.
Explain Binary Exponential Back-off (BEB) with suitable example.
A Group of N stations share a 56 Kbps pure aloha channel. Each station outputs a 1000 bits frame on an average of once every 100 sec (stations are buffered). What is the max value of N?
What is the need of Network layer? What are services provided by this layer? Explain.
Describe the working of Bellman Ford algorithm using suitable example.
What is MAC Addressing? What are the three types of MAC address discuss with examples.
What is Fragmentation and Reassembly? Why do we need fragmentation and reassembly at network? Explain.
Discuss the following: (i) WWW (ii) HTTP.
Draw and explain the header format of a User Datagram Protocol (UDP).
Write a short note on any two: (i) SNMP (ii) Broadcast and Multicast Routing (iii) MLMA (iv) Service Primitives.
