CS604 MCQs with References by Miss Kazmi

CS604 Operating Systems · MCQz solved, by · Miss Kazmi.

Variable

Fixed P/41

___________ is also called Swapper. Long term

Medium term P/34

Swap space

Shared libraries and kernel modules are stored in _____________ directory. /bin /dev /boot

/lib P/23

__________ displays information about the top processes. Is Cs

Top P/64

Cd

Cooperating processes never share any data, code, memory or state. True

False P/2, 41, 97

First _______ entries in Per Process File Descriptor Table are used as soon as the process is created.

When process opens its first file explicitly it will get descriptor number

3 Google

Taking the CPU from one process and giving the CPU to another process is termed as

Context Switching P/31

Dispatching Swapping Tracking

__________ scheduler selects the process from the job pool and put them in main memory.

Long term P/33

Medium term Swapper

Q1. Linux OS can support multiple users at a time

1. True
2. False

Correct answer: True

Q2. The Operating system is a layer of software between _________ and

1. hardware, software application

P/1

b) Kernel, hardware c) Dos, Windows d) Windows, Kernel

Q3. The major advantage of multi-programming system is

1. More than one jobs can be processed at a given time
2. CPU utilization can be increased
3. Jobs can be completed quickly
4. All of the options are correct

Correct answer: All of the options are correct

P/7

Q4. The main characteristic of a Real time system is

1. Efficiency
2. Large Virtual Memory
3. Large secondary storage device
4. Usability

Correct answer: Usability

P/6

Q5. Command-line interpreter is also called __________ in some operating systems.

1. Kernel
2. Shell

Correct answer: Shell

P/13

c) Signal d) API

Q6. I/O instructions are Privileged Instructions.

1. True

P/8

b) False

Q7. In Linux directory structure, there is ___________ root directory.

1. 1

P/22

b) 2 c) 3 d) 4

8. Utilities used for system administration (halt, ifconfig, fdisk, etc.) are stored in _____________ directory.