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. The FCFS scheduling algorithm poses significant challenges for ____________.

a. Time-sharing systems

b. Operating systems

c. Multiprocessor systems

d. Multiprogramming systems

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

a. Palm OS

b. VxWorks

c. QNX

d. RTLinux

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3. FIFO scheduling is

a. Fair-share scheduling

b. Non-preemptive scheduling

c. Preemptive scheduling

d. Deadline scheduling

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

a. Operating system

b. IP address

c. Stateless

d. State

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5. CPU scheduling is the basis of:

a. none

b. multiprogramming operating systems

c. larger memory sized systems

d. multiprocessor systems

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

a. Memory overflow occurs

b. The operating system chooses a process to suspend

c. The process encounters a failure

d. The system experiences a crash

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

a. Bootloader

b. Main

c. RAM

d. Bootstrap

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

a. Input/output control program

b. Supervisor

c. Performance monitor

d. Job control program

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

a. All

b. Layered OS

c. Monolithic OS

d. Microkernel OS

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10. Which is not application software?

a. windows nt

b. winword xp

c. photoshop

d. page maker

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11. Operating system is a collection of

a. All

b. Input-output devices

c. Software routines

d. Hardware components

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

a. has not been lost

b. has been sent

c. has which identifier

d. all

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

a. process control

b. lynx ms

c. dos

d. windows xp

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

a. All

b. equal allocation algorithm

c. split allocation algorithm

d. proportional allocation algorithm

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

a. File control block

b. Bootstrap

c. Process control block (PCB)

d. Boot loader

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

a. All tasks share the same priority level

b. A task must be completed within its specified deadline

c. Process scheduling can occur only once

d. The kernel is unnecessary

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17. What does OS X has?

a. hybrid kernel

b. monolithic kernel with modules

c. microkernel

d. monolithic kernel

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

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

b. It represents typical network usage through noise characterization

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

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

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

a. System calls

b. Assembly instructions

c. API

d. Library

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20. The Virtual memory is:

a. A large secondary memory

b. A large main memory

c. None

d. An illusion of a large main memory

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The average score is 60%

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

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