BSc CSIT (TU) Science Computer Networks (BSc CSIT, CSC258) Question Paper 2081
This is the official BSc CSIT (TU) (Science stream) Computer Networks (BSc CSIT, CSC258) question paper for 2081, as set in the regular annual examination. It carries 60 full marks and a time allowance of 180 minutes, across 12 questions. On Kekkei you can attempt this Computer Networks (BSc CSIT, CSC258) past paper online with a timer, get instant AI feedback and step-by-step solutions, and track the topics where you lose marks — completely free. Whether you are revising for your BSc CSIT (TU) Computer Networks (BSc CSIT, CSC258) exam or solving previous years' question papers, this 2081 paper is a great way to practise under real exam conditions.
Section A: Long Answer Questions
Attempt any TWO questions.
Assume a Class B network. Divide it into four subnets. Write the subnet ID and broadcast address of each subnet and determine the new subnet mask.
What is TCP? Explain the TCP segment structure and the three-way handshake mechanism for connection establishment and termination.
Explain the various error detection and correction techniques used in the data link layer, including CRC and Hamming code with examples.
Section B: Short Answer Questions
Attempt any EIGHT questions.
Explain the difference between connection-oriented and connectionless services.
What is UDP? Explain the UDP header format.
Explain CIDR (Classless Inter-Domain Routing) with an example.
Differentiate between a hub, a switch, and a router.
What is ARP? Explain how ARP resolves a logical address to a physical address.
Explain the working of the HTTP protocol.
What is NAT? Explain its types and uses.
Explain the FTP protocol and its working.
What is the purpose of ICMP? List some common ICMP message types.