Operating System Solved MCQs

Operating System MCQS

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

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1. CPU scheduling is the basis of:

a. multiprogramming operating systems

b. multiprocessor systems

c. larger memory sized systems

d. none

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2. Operating system is a collection of

a. Software routines

b. Input-output devices

c. All

d. Hardware components

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

a. dos

b. windows xp

c. lynx ms

d. process control

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4. FIFO scheduling is

a. Deadline scheduling

b. Fair-share scheduling

c. Non-preemptive scheduling

d. Preemptive scheduling

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

a. File control block

b. Boot loader

c. Bootstrap

d. Process control block (PCB)

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

a. Main

b. RAM

c. Bootstrap

d. Bootloader

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7. The FCFS scheduling algorithm poses significant challenges for ____________.

a. Multiprogramming systems

b. Operating systems

c. Multiprocessor systems

d. Time-sharing systems

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

a. Job control program

b. Input/output control program

c. Supervisor

d. Performance monitor

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9. The Virtual memory is:

a. None

b. A large secondary memory

c. An illusion of a large main memory

d. A large main memory

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10. What does OS X has?

a. microkernel

b. monolithic kernel with modules

c. monolithic kernel

d. hybrid kernel

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

a. VxWorks

b. QNX

c. RTLinux

d. Palm OS

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

a. Microkernel OS

b. All

c. Monolithic OS

d. Layered OS

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

a. Stateless

b. Operating system

c. IP address

d. State

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

a. Assembly instructions

b. Library

c. System calls

d. API

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

d. It represents typical network usage through noise characterization

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

a. equal allocation algorithm

b. split allocation algorithm

c. proportional allocation algorithm

d. All

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

a. has not been lost

b. has which identifier

c. all

d. has been sent

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

a. The system experiences a crash

b. Memory overflow occurs

c. The process encounters a failure

d. The operating system chooses a process to suspend

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19. In a real-time operating system, ____________.

a. The kernel is unnecessary

b. All tasks share the same priority level

c. Process scheduling can occur only once

d. A task must be completed within its specified deadline

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20. Which is not application software?

a. windows nt

b. page maker

c. photoshop

d. winword xp

Your score is

The average score is 52%

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

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