Operating System Solved MCQs

Operating System MCQS

Operating System Solved MCQs for Computer Instructor B-17 | AJKPSC & PPSC Exam Preparation

1 / 20

In a real-time operating system, ____________.

a. A task must be completed within its specified deadline

b. Process scheduling can occur only once

c. The kernel is unnecessary

d. All tasks share the same priority level

2 / 20

A process can never be sure that a signal it has sent

a. has which identifier

b. has not been lost

c. all

d. has been sent

3 / 20

Which one of the following is not a real time operating system?

a. Palm OS

b. QNX

c. VxWorks

d. RTLinux

4 / 20

Which of the following is not a part of the operating system?

a. Performance monitor

b. Input/output control program

c. Job control program

d. Supervisor

5 / 20

On systems with multiple operating systems, the choice to load a specific one is made by?

a. Bootstrap

b. Boot loader

c. Process control block (PCB)

d. File control block

6 / 20

CPU scheduling is the basis of:

a. multiprogramming operating systems

b. multiprocessor systems

c. none

d. larger memory sized systems

7 / 20

The Virtual memory is:

a. A large secondary memory

b. An illusion of a large main memory

c. None

d. A large main memory

8 / 20

The FCFS scheduling algorithm poses significant challenges for ____________.

a. Multiprocessor systems

b. Time-sharing systems

c. Operating systems

d. Multiprogramming systems

9 / 20

If the total working set sizes exceed the available frames, ____________.

a. The system experiences a crash

b. The operating system chooses a process to suspend

c. The process encounters a failure

d. Memory overflow occurs

10 / 20

To access the services of the operating system, the interface is provided by the…..?

a. Assembly instructions

b. System calls

c. API

d. Library

11 / 20

In which type of operating system can a misbehaving system component be easily terminated/killed at runtime?

a. All

b. Microkernel OS

c. Layered OS

d. Monolithic OS

12 / 20

Allocation of memory to each process according to its size is known as :

a. All

b. split allocation algorithm

c. proportional allocation algorithm

d. equal allocation algorithm

13 / 20

What are the features of a stack-based Intrusion Detection System (IDS)?

a. It is designed to analyze a specific sequence of packets

b. The audit information is recorded by the host operating system

c. It represents typical network usage through noise characterization

d. These systems are tightly integrated with the TCP/IP stack to monitor packets

14 / 20

Which of the following is an example of a real time operating system?

a. lynx ms

b. process control

c. windows xp

d. dos

15 / 20

FIFO scheduling is

a. Non-preemptive scheduling

b. Fair-share scheduling

c. Preemptive scheduling

d. Deadline scheduling

16 / 20

What does OS X has?

a. hybrid kernel

b. monolithic kernel with modules

c. monolithic kernel

d. microkernel

17 / 20

Operating system is a collection of

a. Hardware components

b. Input-output devices

c. Software routines

d. All

18 / 20

To recover from failures in network operations, _____________ information may be retained.

a. Stateless

b. Operating system

c. State

d. IP address

19 / 20

Which is not application software?

a. windows nt

b. page maker

c. photoshop

d. winword xp

20 / 20

The _______ program sets up all components of the system, including CPU registers, device controllers, and main memory contents, before starting the operating system.

a. Bootstrap

b. Main

c. RAM

d. Bootloader

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Operating System Solved MCQs for Computer Instructor B-17 | AJKPSC & PPSC Exam Preparation

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