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Worksheets

OS QUIZ

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Waiting time for P5 is

a)

0 ms

b)

8 ms

c)

30 ms

d)

23 ms

2.

P3 will start to be process at time =

a)

0

b)

9

c)

16

d)

30

3.

The highest priority process is process

a)

P1

b)

P2

c)

P3

d)

P4

4.

The scheduling strategy where each process in the queue is given a certain amount of time, in turn, to execute and then returned to the queue, unless blocked is referred to as _____________.

a)

Prioritization

b)

Round-Robin

c)

LIFO

d)

All of the above

5.

Which is deadlock avoidance algorithm

a)

fcfs algorithm

b)

bankers algorithm

c)

preemptive algorithm

d)

round robin algorithm

6.

Which is not a necessary condition in Deadlock

a)

mutual exclusion

b)

hold and wait

c)

circular wait

d)

progress

7.

If p1 requesting for r1,r1 allocated to p2,p2 reqesting for r2,r2 is allocated to p1 such condition is called as______ in Deadlock Prevention

a)

mutual exclusion

b)

hold and wait

c)

circular wait

d)

bounding condition

8.

What is the name of the technique in which the operating system of a computer executes several programs concurrently by switching back and forth between them?

a)

Partitioning

b)

Multi-tasking

c)

Windowing

d)

Paging

9.
What are the two ways an OS can close a file?
a)
Normally or Abnormally
b)
Mouse Click or Automatic
c)
Simple or Complex
d)
Complete or Partial
10.
A message sent by the OS to change the CPU schedule is known as...
a)
Interupt
b)
Poll
c)
Cache
d)
Defrag
11.
Function of system software is to serve as the _________ between the user, the application software, and the computer’s hardware
a)
interface
b)
program
c)
application
d)
server
12.

The strategy of allowing processes that are logically runnable to be temporarily suspended is called

a)

preemptive scheduling

b)

non preemptive scheduling

c)

shortest job first

d)

first come first served

13.

Semaphores are used to solve

a)

Deadlock

b)

Mutual exclusion

c)

Inter-process Communication

d)

Messaging

14.

Which is not a process state?

a)

waiting

b)

terminated

c)

blocked

d)

redirected

15.

FCFS is operates similar to a

a)

stack

b)

sorting algorithm

c)

circle

d)

queue