Operating systems concept MCQ Test 1

By | October 3, 2017

UGC-NET/GATE Multiple Choice Questions for Operating System.

Question 1
One of the disadvantages of user level threads compared to Kernel level threads is
A
If a user level thread of a process executes a system call, all threads in that process are blocked.
B
Scheduling is application dependent.
C
Thread switching doesn't require kernel mode privileges.
D
The library procedures invoked for thread management in user level threads are local procedures.
Question 2
A multimedia file
A
is same as any other regular file
B
must be accessed at specific rate
C
stored on remote server can not be delivered to its client
D
none of the mentioned
Question 3
A process executes the following segment of code : for(i = 1; i < = n; i++) fork (); The number of new processes created is
A
n
B
((n(n + 1))/2)
C
$2^n - 1$
D
$3^n - 1$
Question 4
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
Question 5
A series of statements explaining how the data is to be processed is called
A
instruction
B
compiler
C
program
D
interpretor
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There are 5 questions to complete.

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