Advance operating system msc(cs) |Advance operating system MCQ questions and answers

 Advance operating system MCQ questions and answers

1. What is operating system?

A. collection of programs that manages hardware resources

B. system service provider to the application programs

C. link to interface the hardware and application programs

D. all of the mentioned

D.all of the mentioned

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

A. system calls

B. api

C. library

D. assembly instructions

A.system calls

3. Which one of the following is not true?

A. kernel is the program that constitutes the central core of the operating system

B. kernel is the first part of operating system to load into memory during booting

C. kernel is made of various modules which can not be loaded in running operating system

D. kernel remains in the memory during the entire computer session

C.kernel is made of various modules which can not be loaded in running operating system

4. Which one of the following error will be handle by the operating system?

A. power failure

B. lack of paper in printer

C. connection failure in the network

D. all of the mentioned

D.all of the mentioned

5. The scheme used in the above question is known as _______ or ________.

A. sector sparing

B. forwarding

C. backwarding

D. sector utilization

B.forwarding

6. By operating system, the resource management can be done via

A. time division multiplexing

B. space division multiplexing

C. both (a) and (b)

D. none of the mentioned

C.both (a) and (b)

7. . If a process fails, most operating system write the error information to a

A. log file

B. another running process

C. new file

D. none of the mentioned

A.log file

8. Which facility dynamically adds probes to a running system, both in user processes and in the kernel?

A. dtrace

B. dlocate

C. dmap

D. dadd

A.dtrace

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

A. vxworks

B. windows ce

C. rtlinux

D. palm os

D.palm os

10. The OS X has

A. monolithic kernel

B. hybrid kernel

C. microkernel

D. monolithic kernel with modules

B.hybrid kernel

11. The systems which allows only one process execution at a time, are called

A. uniprogramming systems

B. uniprocessing systems

C. unitasking systems

D. none of the mentioned

A.uniprogramming systems

12. In operating system, each process has its own

A. address space and global variables

B. open files

C. pending alarms, signals and signal handlers

D. all of the mentioned

D.all of the mentioned

13. In Unix, Which system call creates the new process?

A. fork

B. create

C. new

D. none of the mentioned

A.fork

14. A process can be terminated due to

A. normal exit

B. fatal error

C. killed by another process

D. all of the mentioned

D.all of the mentioned

15. What is the ready state of a process?

A. when process is scheduled to run after some execution

B. when process is unable to run until some task has been completed

C. when process is using the cpu

D. none of the mentioned

A.when process is scheduled to run after some execution

16. What is interprocess communication?

A. communication within the process

B. communication between two process

C. communication between two threads of same process

D. none of the mentioned

B.communication between two process

17. A set of processes is deadlock if

A. each process is blocked and will remain so forever

B. each process is terminated

C. all processes are trying to kill each other

D. none of the mentioned

A.each process is blocked and will remain so forever

18. A process stack does not contain

A. function parameters

B. local variables

C. return addresses

D. pid of child process

D.pid of child process

19. Which system call returns the process identifier of a terminated child?

A. wait

B. exit

C. fork

D. get

A.wait

20. The address of the next instruction to be executed by the current process is provided by the

A. cpu registers

B. program counter

C. process stack

D. pipe

B.program counter

21. The number of processes completed per unit time is known as __________.

A. output

B. throughput

C. efficiency

D. capacity

B.throughput

22. The state of a process is defined by :

A. the final activity of the process

B. the activity just executed by the process

C. the activity to next be executed by the process

D. the current activity of the process

D.the current activity of the process

23. The Process Control Block is :

A. process type variable

B. data structure

C. a secondary storage section

D. a block in memory

B.data structure

24. The entry of all the PCBs of the current processes is in :

A. process register

B. program counter

C. process table

D. process unit

C.process table

25. The degree of multi-programming is :

A. the number of processes executed per unit time

B. the number of processes in the ready queue

C. the number of processes in the i/o queue

D. the number of processes in memory

D.the number of processes in memory