Operating systems concept MCQ Test 44

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

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Question 1
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 above
Question 2
Block or buffer caches are used
A
to improve disk performance
B
to increase the capacity of main memory
C
to speed up main memory read operation
D
None of the above
Question 3
Which, of the following is not true about the description of a decision table?
A
A decision table is directly understood by the computer
B
A decision table is easy to understand
C
All of the above
D
None of the above
Question 4
In distributed systems, link and site failure is detected by
A
polling
B
handshaking
C
token passing
D
none of the above
Question 5
The valid invalid bit, in this case, when valid indicates :
  1. the page is legal
  2. the page is illegal
  3. the page is in memory
  4. the page is not in memory
A
I and II
B
II and III
C
II, III and IV
D
I and III
Question 6
A single NFS write procedure :
A
can be atomic
B
is atomic
C
is non atomic
D
none of the above
Question 7
The base register is also known as the :
A
basic register
B
regular register
C
relocation register
D
delocation register
Question 8
Which one of the following bootloader is not used by linux?
A
GRUB
B
LILO
C
NTLDR
D
none of the above
Question 9
The total time to prepare a disk drive mechanism for a block of data to be read from it is
A
latency plus transmission time
B
latency plus seek time
C
latency plus seek time plus transmission time
D
None of the above
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