Operating System Question Paper of 3rd Semester BSC(IT) Download Previous Years Question Paper 1

Roll No.

Total No. of Questions : 07

B.Sc. (IT) (Sem.–3rd)

OPERATING SYSTEM

Subject Code : BS-203

Paper ID : [B0410]

Time : 3 Hrs.

INSTRUCTION TO CANDIDATES :

1. Section –A, is Compulsory.

2. Attempt any four questions from Section-B.

Section –A

Q1)

 a) What is the difference between system program and application

program?

 b) Define logical address space of a process.

 c) What is Convoy effect?

 d) What is the disadvantage of paging system?

 e) Define critical section problem.

 f) What is the cause of thrashing?

 g) What is the difference between SCAN and C-SCAN scheduling?

 h) What is deadlock Prevention?

 i) How two level directory structures differ from single level directory?

 j) What is data encryption?

Section – B

Q2) What is Multiprogramming operating system? Explain functions of the

multiprogramming systems.

Q3) What is process scheduling? Explain different scheduling techniques.

Q4) How does paging differ from fixed partition scheme? Explain address

translation and relocation in paging.

Q5) What is file? Explain different access methods in file management?

Q6) What is a threat? Differentiate between system threats and program

threats. Also discuss method to deal with them.

Q7) What is a deadlock? What are various conditions for its occurrence? How to prevent Deadlock? Illustrate with the examples