BSc CSIT (TU) Science Distributed System (BSc CSIT, CSC462) Question Paper 2077
This is the official BSc CSIT (TU) (Science stream) Distributed System (BSc CSIT, CSC462) question paper for 2077, 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 Distributed System (BSc CSIT, CSC462) 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) Distributed System (BSc CSIT, CSC462) exam or solving previous years' question papers, this 2077 paper is a great way to practise under real exam conditions.
Section A: Long Answer Questions
Attempt any TWO questions.
What is fault tolerance? Explain failure models, the use of redundancy, and the concept of agreement in faulty systems (Byzantine generals problem).
Explain clock synchronization in distributed systems. Discuss Lamport's logical clocks and vector clocks with examples, and describe how the happened-before relation orders events.
What is distributed mutual exclusion? Explain the centralized, token-ring and Ricart-Agrawala (distributed) algorithms, comparing them in terms of message complexity and fault tolerance.
Section B: Short Answer Questions
Attempt any EIGHT questions.
What is a distributed system? Explain the goals and characteristics of a distributed system.
Explain Lamport's logical clock with an example.
What is a Remote Procedure Call (RPC)? Explain its working with a diagram.
Differentiate between centralized and distributed mutual exclusion algorithms.
Explain distributed deadlock detection. What is a wait-for graph?
Explain the Bully algorithm for electing a coordinator.
What are the different kinds of transparency in a distributed system?
What is middleware? Explain its role in a distributed system.
Explain Cristian's algorithm for physical clock synchronization.