Operating System (GATE (Graduate Aptitude Test in Engineering) Computer Science): Questions 68 - 72 of 129

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Question number: 68

» Operating System » Memory Management and Virtual Memory

MCQ▾

Question

Magnetic disks provide the bulk of ________for modern computer systems.

Choices

Choice (4) Response

a.

Secondary storage

b.

Primary storage

c.

Auxiliary storage

d.

Question does not provide sufficient data or is vague

Question number: 69

» Operating System » Deadlock

MCQ▾

Question

What processes never finish executing, and system resources are tied up, preventing other jobs from starting is called?

Choices

Choice (4) Response

a.

Execution

b.

Process

c.

Deadlock

d.

All of the above

Question number: 70

» Operating System » Deadlock

MCQ▾

Question

Which solution is restricted to two processes that alternate execution between their critical sections and remainder sections?

Choices

Choice (4) Response

a.

Critical section

b.

Peterson’s solution

c.

Semaphore

d.

All of the above

Question number: 71

» Operating System » Concurrency

MCQ▾

Question

A ________ does not necessarily imply an incorrect execution (that is, an execution that is not equivalent to one represented by a serial schedule).

Choices

Choice (4) Response

a.

parallel schedule

b.

serial schedule

c.

non-serial schedule

d.

All of the above

Question number: 72

» Operating System » CPU Scheduling

MCQ▾

Question

The average waiting time under the RR policy is often long. Consider the following set of processes that arrive at time 0, with the length of the CPU burst given in milliseconds: If we use a time quantum of 4 milliseconds what is average waiting time?

The table display following data:

The table display following data:

Process

Brust time

P1

24

P2

3

P3

3

Choices

Choice (4) Response

a.

22

b.

8.00

c.

5.66

d.

All of the above

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