Operating systems concept MCQ Test 43

By | October 3, 2017

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

Question 1
Processes submitted to a system are managed by
A
File management
B
Job management
C
Activity management
D
Process management
Question 2
Which one of the following bootloader is not used by linux?
A
GRUB
B
LILO
C
NTLDR
D
None of the mentioned
Question 3
Several processes access and manipulate the same data concurrently and the outcome of the execution depends on the particular order in which the access takes place, is called a(n).....
A
Shared Memory Segments
B
Entry Section
C
Race condition
D
Process Synchronization
Question 4
Which of the following is least secure method of authentication?
A
Key card
B
fingerprint
C
retina pattern
D
Password
Question 5
Defective sectors on disks are often known as.....
A
good blocks
B
destroyed blocks
C
bad blocks
D
none of the mentioned
Question 6
The amount of memory in a real time system is generally:
A
less compared to PCs
B
high compared to PCs
C
same as in PCs
D
they do not have any memory
Question 7
Which command is used to change directory to the name beginning with a 'p'?
A
cd p
B
cd p?
C
cd p*
D
cd [p]
Question 8
Time taken in memory access through PTBR is:
A
extended by a factor of 3
B
extended by a factor of 2
C
slowed by a factor of 3
D
slowed by a factor of 2
Question 9
Which type of command requires additional files to perform specific operations?
A
Internal commands
B
External commands
C
Valuable commands
D
Primary commands
Question 10
Time duration required for scheduling dispatcher to stop one process and start another is known as
A
process latency
B
dispatch latency
C
execution latency
D
interrupt latency
Question 11
The mount mechanism.......... a transitive property.
A
exhibits
B
does not exhibit
C
may exhibit
D
none of the mentioned
Question 12
In command interpreter environment of the operating system, commands are executed by
A
windows
B
itself
C
Linux
D
UNIX
Question 13
Efficient sharing of resources among various programs is key goal of
A
Operating system
B
Management system
C
Processing system
D
Functional systems
Question 14
What is true regarding 'Fence'?
A
Its a method to confine users to one side of a boundary
B
It can protect Operating system from one user
C
It cannot protect users from each other
D
All of the mentioned
Question 15
.......... is a technique of improving the priority of process waiting in Queue for CPU allocation.
A
Starvation
B
Ageing
C
Revocation
D
Relocation
Question 16
.......... is a high level abstraction over Semaphore.
A
Shared memory
B
Message passing
C
Monitor
D
Mutual exclusion
There are 16 questions to complete.

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