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. FIFO scheduling is

a. Preemptive scheduling

b. Fair-share scheduling

c. Deadline scheduling

d. Non-preemptive scheduling

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

a. Multiprocessor systems

b. Operating systems

c. Multiprogramming systems

d. Time-sharing systems

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

a. IP address

b. State

c. Operating system

d. Stateless

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4. CPU scheduling is the basis of:

a. none

b. multiprocessor systems

c. larger memory sized systems

d. multiprogramming operating systems

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5. 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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6. 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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7. Allocation of memory to each process according to its size is known as :

a. equal allocation algorithm

b. proportional allocation algorithm

c. All

d. split allocation algorithm

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8. What does OS X has?

a. monolithic kernel

b. monolithic kernel with modules

c. hybrid kernel

d. microkernel

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

a. RAM

b. Bootloader

c. Bootstrap

d. Main

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

a. all

b. has been sent

c. has not been lost

d. has which identifier

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11. Which is not application software?

a. windows nt

b. photoshop

c. page maker

d. winword xp

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

a. The kernel is unnecessary

b. Process scheduling can occur only once

c. A task must be completed within its specified deadline

d. All tasks share the same priority level

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

a. Process control block (PCB)

b. Boot loader

c. File control block

d. Bootstrap

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14. Operating system is a collection of

a. Hardware components

b. All

c. Input-output devices

d. Software routines

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

a. process control

b. dos

c. lynx ms

d. windows xp

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

a. QNX

b. RTLinux

c. VxWorks

d. Palm OS

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

a. Input/output control program

b. Job control program

c. Performance monitor

d. Supervisor

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

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

b. It represents typical network usage through noise characterization

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

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

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19. 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. Memory overflow occurs

d. The process encounters a failure

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20. The Virtual memory is:

a. None

b. A large main memory

c. An illusion of a large main memory

d. A large secondary memory

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

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