1
What is operating system?
Correct AnswerD. All of the mentioned
☑ MCQ PRACTICE
Operating Systems Unit 1
Practice objective questions for quick revision and examination preparation. Try answering each question before revealing the answer.
Operating Systems - Unit-1
2
To access the services of operating system, the interface is provided by the:
Correct AnswerA. System calls
3
Which one of the following error will be handle by the operating system?
Correct AnswerD. All of the mentioned
4
The systems which allows only one process execution at a time, are called
Correct AnswerA. Uniprogramming systems
5
In operating system, each process has its own
Correct AnswerD. all of the mentioned
6
In Unix, Which system call creates the new process?
Correct AnswerA. fork
7
A process can be terminated due to
Correct AnswerD. all of the mentioned
8
What is the ready state of a process?
Correct AnswerA. when process is scheduled to run after some execution
9
What is inter process communication?
Correct AnswerB. communication between two process
10
A set of processes is deadlock if
Correct AnswerA.each process is blocked and will remain so forever
11
A process stack does not contain
Correct AnswerD. PID of child process
12
Which system call returns the process identifier of a terminated child?
Correct AnswerA.wait
13
The address of the next instruction to be executed by the current process is provided by the
Correct AnswerB.program counter
14
Multi processor systems are known as
Correct AnswerD. Both A & B
15
Which cause breaking the sequence of execution?
Correct AnswerB. interrupt
16
END, ABORT comes under
Correct AnswerA. process control
17
The runtime support system for most programming languages provides a
Correct AnswerA. system call interface
18
------------- provides an interfaces to the services made available by an operating system
Correct AnswerA. system calls
19
Kernel mode is also called
Correct AnswerD. all above
20
Multiprocessing ________.
Correct AnswerD.Allows the same computer to have the multiple processors
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 ________.
Correct AnswerA. Time Sharing
22
-----------is user friendly interface.
Correct AnswerA. GUI
23
Linux is a(n) __________________ operating system
Correct AnswerA. Open source
24
----------is the layer of a computer system between the hardware and the user program [ ]
Correct AnswerB. Operating system
25
The Basic Input Output System (BIOS) resides in [ ]
Correct AnswerB. ROM