BITM Operating System

bitmsemester 4

This course includes the basic concepts of operating system. It consists of process management, deadlocks and process synchronization, memory management techniques, File system implementation, I/O device .

Chapter Wise Notes Question Banks Syllabus Chapter Wise Questions Viva Practical

Faculty of Management

2019

Bachelor of Information Technology Management

Operating System

IT241

Full Marks: 40

Pass Marks: 18

Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.

"Group "A""

Brief Answer Questions:

[10 × 1 = 10]

Define process.

[1]

Why worst fit is better than best fit?

[1]

What might be the contents of PCB?

[1]

Define the process scheduling mechanism of an OS.

What is a semaphore?

What is paging?

What is bit vector?

What is decryption?

What do you mean by I/O optimization?

[1]

10.

What are the advantages of IPC?

[1]

"Group "B""

Exercise Problems:

[5 × 4 = 20]

Define process. Explain how a process is created.

[4]

How free space is managed in disk? Explain.

[4]

Explain paging scheme with supportive diagram.

[4]

Which scheduling algorithm will be more appropriate between ‘shortest job first’ and ‘first come first serve’ for given set of processes in terms of average waiting time?

Process	Arrival time	Burst time
P1	0	8
P2	1	6
P3	3	5
P4	7	7

[4]

Consider the following page reference string: 3, 3, 5, 4, 7, 1, 5, 5, 1, 4, 3, 7, 6, 3, 4, 1. How many page faults would occur for each of the following page replacement algorithms assuming 4 page frames?

i. LRU

ii. FIFO

[4]

"Group "C""

Comprehensive Questions:

[2 × 5 = 10]

What is deadlock? Explain the banker’s algorithm.

[5]

What do you mean by device management? Explain the polling process in I/O system.

[5]

BITM Operating System

BITM Semester 4 Operating System Question Paper 2019 – Solved

Faculty of Management