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. What does OS X has?

a. microkernel

b. monolithic kernel

c. hybrid kernel

d. monolithic kernel with modules

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2. CPU scheduling is the basis of:

a. multiprogramming operating systems

b. larger memory sized systems

c. multiprocessor systems

d. none

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

a. Library

b. Assembly instructions

c. System calls

d. API

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4. 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 is designed to analyze a specific sequence of packets

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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5. Operating system is a collection of

a. All

b. Hardware components

c. Software routines

d. Input-output devices

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6. Which is not application software?

a. winword xp

b. page maker

c. photoshop

d. windows nt

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

a. Process scheduling can occur only once

b. A task must be completed within its specified deadline

c. All tasks share the same priority level

d. The kernel is unnecessary

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8. FIFO scheduling is

a. Fair-share scheduling

b. Preemptive scheduling

c. Deadline scheduling

d. Non-preemptive scheduling

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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. Bootloader

b. RAM

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 not been lost

c. has which identifier

d. has been sent

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

a. Palm OS

b. VxWorks

c. RTLinux

d. QNX

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

a. Memory overflow occurs

b. The system experiences a crash

c. The process encounters a failure

d. The operating system chooses a process to suspend

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

a. equal allocation algorithm

b. split allocation algorithm

c. All

d. proportional allocation algorithm

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14. 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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15. The Virtual memory is:

a. An illusion of a large main memory

b. A large secondary memory

c. A large main memory

d. None

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16. 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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17. The FCFS scheduling algorithm poses significant challenges for ____________.

a. Operating systems

b. Time-sharing systems

c. Multiprocessor systems

d. Multiprogramming systems

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

a. File control block

b. Bootstrap

c. Boot loader

d. Process control block (PCB)

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

a. windows xp

b. process control

c. lynx ms

d. dos

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

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