Operating systems concept MCQ Test 24

By | October 3, 2017

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

Question 1
Optical disks ..... magnetism.
A
use
B
do not use
C
may use
D
none of the mentioned
Question 2
We have a CPU that generates virtual addresses of 32 bits and the page size is of 4 kbyte. Transition Lookaside Buffer ( TLB ) of the processor can hold a total of 128 page table entries and 4 - way set associative. What is the minimum size of the TLB tag?
A
16 bit
B
20 bit
C
11 bit
D
15 bit
Question 3
For every pair of component and directory vnode after path name translation :
A
a single NFS lookup call is used sequentially
B
a single NFS lookup call is used beginning from the last component
C
atleast two NFS lookup calls per component are performed
D
a seperate NFS lookup call is performed
Question 4
Which of the following condition is required for deadlock to be possible?
A
mutual exclusion
B
a process may hold allocated resources while awaiting assignment of other resources
C
no resource can be forcibly removed from a process holding it
D
all of the mentioned
Question 5
Bankers algorithm is for
A
Dead lock Prevention
B
Dead lock Avoidance
C
Dead lock Detection
D
Dead lock creation
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There are 5 questions to complete.

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