Operating systems concept MCQ Test 16

By | October 3, 2017
Share it and help your needy friends
  •  
  •  
  •  
  •  
  •  
  •  

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

Congratulations - you have completed UGC-NET/GATE Multiple Choice Questions for Operating System..

You scored %%SCORE%% out of %%TOTAL%%.

Your performance has been rated as %%RATING%%


Your answers are highlighted below.
Question 1
Consider the methods used by processes P1 and P2 for accessing their critical sections whenever needed, as given below. The initial values of shared boolean variables S1 and S2 are randomly assigned. (GATE 2010) Method used by P1 : while(S1==S2); Critical section S1 = S2; Method used by P2 : while(S1!=S2); Critical section S2 = not(S1); Which of the following statements describes properties achieved ?
A
Mutual exclusion but not progress
B
Progress but not mutual exclusion
C
Neither mutual exclusion nor progress
D
Both mutual exclusion and progress
Question 2
To ....... to a safe state, the system needs to keep more information about the states of processes.
A
abort the process
B
roll back the process
C
queue the process
D
none of the above
Question 3
In MS-DOS, relocatable object files and load modules have extensions
A
.OBJ and .COM or .EXE, respectively
B
.EXE and .OBJ, respectively
C
.DAS and .EXE, respectively
D
None of the above
Question 4
Which of the following statements are true ? (GATE 2010) I. Shortest remaining time first scheduling may cause starvation II. Preemptive scheduling may cause starvation III. Round robin is better than FCFS in terms of response time
A
I only
B
I and III only
C
II and III only
D
I, II and III
Question 5
What are major components of intrusion detection system ?
  1. Analysic Engine
  2. Event provider
  3. Zone system
  4. Alert Database
A
I and III
B
II and III
C
II, III and IV
D
I,II and IV
Question 6
Can you name of the major Operating System used in computers?
A
OS/2
B
UNIX
C
All of the above
D
None of the above
Question 7
To control access the three bits used in UNIX are represented by :
  1. r
  2. w
  3. ex
  4. x
A
I and III
B
II and III
C
II, III and IV
D
I,II and IV
Question 8
The two kinds of semaphores are :
  1. mutex
  2. binary
  3. counting
  4. decimal
A
I and III
B
I, II and III
C
II, III and IV
D
II and III
Question 9
The Zero Capacity queue :
A
is referred to as a message system with buffering
B
is referred to as a message system with no buffering
C
is referred to as a link
D
none of the above
Once you are finished, click the button below. Any items you have not completed will be marked incorrect. Get Results
There are 9 questions to complete.

Share it and help your needy friends
  •  
  •  
  •  
  •  
  •  
  •  

Leave a Reply

Your email address will not be published. Required fields are marked *