Dr.A.P.J.Abdul Kalam University BE V SEM ALL BRANCH System Programming and Operating System [IT-504] Dec - 2020 Question Paper

Dr.A.P.J.Abdul Kalam University 

Bachelor of Engineering

Fifth Semester Main Examination, Dec-2020

System Programming and Operating System [IT-504]

Branch: IT

Time: 3:00 Hrs Max Marks 70

Note : 1. Attempt any five questions out of eight.

2. All question carry equal marks.

Q.1 (a) Write the different between multitasking & multiprogramming.

(b) Explain various methods of accessing file with examples.

Q.2 (a) Discuss various free space management techniques. Explain them in detail.

(b) What is deadlock? What are the necessary conditions for a deadlock occur?

Q.3 (a) Briefly explain the following:

(i) Mutual exclusion

(ii) Critical section problem

(b) Write short notes:-

(i) Distributed shared memory

(ii) Process management in Linux

Q.4 (a) Explain different types of schedules along with the purpose of each.

(b) Differentiate between external and internal fragmentation.

Q.5 (a) What is meant by thrashing? Explain various causes of thrashing.

(b) Write key features of window file system.

Q.6 (a) What is virus? Write difference between worms and virus.

(b) Discuss various security threats in file system of operating system.

Q.7 (a) Write short note on:

(i) Parallel operating system

(ii) Fragmentation

(b) Explain Cache memory organization.

Q.8 Define following:

(i) FIFO replacement

(ii) LRU replacement

(iii) Optimal replacement

(iv) RPC

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