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
ANSEWER
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
ANSWER
A. System calls
3. 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
4. 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
Answer
5. 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
6. In Unix, Which system call creates the new process?
A . fork
B . create
C . new
D . none of the mentioned
Answer: A. fork
6. In Unix, Which system call creates the new process?
A . fork
B . create
C . new
D . none of the mentioned
Answer
Answer: A. fork
7. A process can be terminated due to
A . normal exit
B . fatal error
C . killed by another process
D . all of the mentioned
Answer
8. 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
Answer
9. What is inter process communication?
A . communication within the process
B . communication between two process
C . communication between two threads of same process
D . none of the mentioned
Answer
10. 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
Answer
11. A process stack does not contain
A . function parameters
B . local variables
C . return addresses
D . PID of child process
Answer
12. Which system call returns the process identifier of a terminated child?
A . wait
B . exit
C . fork
D . get
Answer
13. 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
Answer
14. Multi processor systems are known as
A . parallel systems
B . tightly coupled systems
C . loosely coupled systems
D . Both A & B
Answer
15. Which cause breaking the sequence of execution?
A . interface
B . interrupt
C . memory
D . none
Answer
16. END, ABORT comes under
A . process control
B . file management
C . device
D . Information maintenance
Answer
17. The runtime support system for most programming languages provides a
A . system call interface
B . distributed systems
C . error detection
D . communication
Answer
18. ------------- provides an interfaces to the services made available by an
operating system
A . system calls
B . distributed systems
C . special purpose systems
D . command interrupter
Answer
19. Kernel mode is also called
A . superior mode
B . system mode
C . privileged mode
D . all above
Answer
20. Multiprocessing ________.
A . Make the operating system simpler
B . Allows multiple processes to run simultaneously
C . Is completely understood by all major
computer vendors
D . Allows the same computer to have the multiple processors
Answer
21. The technique, for sharing the time of a computer among several jobs,
which switches jobs so rapidly such that each job appears to have the computer
to itself, is called ________.
A . Time Sharing
B . Time out
C . Time domain
D . Multitasking
Answer
22. -----------is user friendly interface.
A . GUI
B . CGI
C . CLI
D . NONE
Answer
23. Linux is a(n) __________________ operating system
A . Open source
B . Microsoft
C . Windows
D . Mac
Answer
24. ----------is the layer of a computer system between the hardware and the
user program [ ]
A . Operating environment
B . Operating system
C . System environment
D . None of these
Answer
25. The Basic Input Output System (BIOS) resides in [ ]
A . RAM
B . ROM
C . The CPU
D . Memory Cache
Answer
