Operating systems concept MCQ Test 42

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

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Question 1
While working with MS-DOS, which command will you use to transfer a specific file from one disk to another?
A
COPY
B
RENAME
C
FORMAT
D
None of the above
Question 2
In Uni,X Which system call creates the new process?
A
fork
B
create
C
new
D
none of the above
Question 3
In indexed allocation :
A
each file must occupy a set of contiguous blocks on the disk
B
each file is a linked list of disk blocks
C
all the pointers to scattered blocks are placed together in one location
D
none of the above
Question 4
If the swap space is simply a large file, within the file system, ............ used to create it, name it and allocate its space.
A
special routines must be
B
normal file system routines can be
C
normal file system routines cannot be
D
swap space storage manager is
Question 5
What are the different ways mounting of file system ?
  1. Boot mounting
  2. root mounting
  3. explicit mounting
  4. auto mounting
A
I and III
B
II and III
C
II, III and IV
D
I,III and IV
Question 6
With regard to DOS attack what is not true from below options ?
A
We can stop DOS attack completely
B
By upgrading OS vulnerability we can stop DOS attack to some extent
C
DOS attack has to be stopped at network level
D
Such attack can last for hours
Question 7
The child process can :
  1. be a duplicate of the parent process
  2. never be a duplicate of the parent process
  3. have another program loaded into it
  4. never have another program loaded into it
A
I and II
B
II and III
C
II, III and IV
D
I and III
Question 8
The main memory accommodates :
  1. operating system
  2. CPU
  3. user processes
  4. All of these
A
I and II
B
II and III
C
II, III and IV
D
I and III
Question 9
A page fault occurs when :
A
a page gives inconsistent data
B
a page cannot be accesses due to its absence from memory
C
a page is invisible
D
all of the above
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