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Q.

Supervisor state is

A

never used

B

entered by programs when they enter the processor

C

required to perform any I/O

D

only allowed to the operating system

E

None of the above

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MCQ

1.

What is the initial value of the semaphore to allow only one of the many processes to enter their critical section?

A

8

B

1

C

16

E

None of the above

Discussion

MCQ

2.

Which of the following can be accesses by transfer vector approach of linking?

A

External data segments

B

External subroutines

C

Data located in other procedures

D

All of the above

E

None of the above

Discussion

MCQ

3.

Scheduling is

A

allowing jobs to use the processor

B

unrelated to performance consideration

C

not required in uniprocessor systems

D

the same regard-less of the purpose of the system

E

None of the above

Discussion

MCQ

4.

...... is a new windows feature that offers a number of methods for searching for a file or folder?

A

Find

B

Search

C

Locate

D

All of the above

Discussion

MCQ

5.

A critical region is

A

a program segment that has not been proved bug-free

B

a program segment that often causes unexpected system crashes

C

a program segment where shared resources are accessed

D

one which is enclosed by a pair of P and V operations on semaphores

E

none is the above

Discussion

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