PEP OS INPUT
Quiz
•
Computers
•
University
•
Hard
Pushpendra Pateriya
Used 17+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dirty bit is used to show the
page with corrupted data
wrong page in the memory
page that is modified after being loaded into cache memory
page that is less frequently accessed
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Fence register used for
CPU Protection
memory protection
file protection
all of the above
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a service not supported by the operating system?
protection
accounting
compilation
I/O operation
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
A computer system has 6 tape drives, with 'n' processes competing for them. Each process may need 3 tape drives. The maximum value of 'n' for which the system is guaranteed to be deadlock free is
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In Round Robin (RR) CPU scheduling, as the time quantum is increased, the average turn around time
increases
decreases
remains constant
varies irregularly
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Suppose that a process is in 'BLOCKED' state waiting for some I/O service. When the service is completed, it goes to the
running state
ready state
suspended state
terminated state
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which of the following scheduling policies does context switching never take place?
Round-robin
shortest job first
Preemptive
FCFS
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