Operating systems concept MCQ Test 2

By | October 3, 2017

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

Question 1
One that is not a peripheral device of the computer system is
A
keyboard
B
mouse
C
printer
D
register
Question 2
Where does a computer add and compare data?
A
Hard disk
B
Floppy disk
C
CPU chip
D
Memory chip
Question 3
Windows which is based on computer NT technology is called
A
windows 2000
B
windows 98
C
windows 3.1
D
Windows 95
Question 4
When a process is accessing shared modifiable data, the process is said to be in:
A
Dead lock
B
Critical Section
C
Multitasking
D
Context Switching
Question 5
What command is used to halt a Linux system?
A
init 0
B
Shutdown-t
C
Shutdown-g-y0
D
Ctrl+Alt+Del
Question 6
Which two rights allow a process to change the entries in a column?
A
copy and transfer
B
copy and owner
C
owner and transfer
D
deny and copy
Question 7
Effective overlap of operations of CPU and I/O devices, requires a proper mix of
A
I/O bound jobs
B
CPU bound jobs
C
Memory bound jobs
D
Balance of CPU and I/O jobs
Question 8
Jobs of the computer system for execution are loaded into
A
device
B
registers
C
memory
D
both A and B
Question 9
Which among the following are the best tools for fixing errors on disks?
A
Fdisk
B
Scandisk
C
Chkdsk
D
Fixdsk
Question 10
More efficient mode of clustering of the computer system is
A
symmetric
B
asymmetric
C
serially
D
both A and B
Question 11
Computer files can exist in folders but folders cannot exist in a
A
paths
B
files
C
folders
D
documents
Question 12
Computer mouse event is
A
left click
B
right click
C
double click
D
all of these
Question 13
A consumable resource is one that can be
A
Access
B
Count
C
Created
D
Control
Question 14
A disk has 200 tracks (numbered 0 through 199). At a given time, it was servicing the request of reading data from track 120, and at the previous request, service was for track 90. The pending requests (in order of their arrival) are for track numbers. 30 70 115 130 110 80 20 25. How many times will the head change its direction for the disk scheduling policies SSTF(Shortest Seek Time First) and FCFS (First Come Fist Serve)
A
2 and 3
B
3 and 3
C
3 and 4
D
4 and 4
Question 15
Slow processing and less storage in single user systems are its
A
advantages
B
disadvantages
C
characteristics
D
network functioning
Question 16
.......... is an approach to restricting system access to authorized users.
A
Role-based access control
B
Process-based access control
C
Job-based access control
D
None of the mentioned
There are 16 questions to complete.

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