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Welcome to the Deadlocks MCQs Page

Dive deep into the fascinating world of Deadlocks with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Deadlocks, a crucial aspect of Operating System. In this section, you will encounter a diverse range of MCQs that cover various aspects of Deadlocks, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Operating System.

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Check out the MCQs below to embark on an enriching journey through Deadlocks. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Operating System.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Deadlocks. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Deadlocks MCQs | Page 3 of 14

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Q21.
______ is a high level abstraction over Semaphore.

a.

Shared memory

b.

Message passing

c.

Monitor

d.

Mutual exclusion

Discuss
Answer: (c).Monitor
Q22.
In one of the deadlock prevention methods, impose a total ordering of all resource types, and require that each process requests resources in an increasing order of enumeration. This voilates the _______________ condition of deadlock.

a.

Mutual exclusion

b.

Hold and Wait

c.

Circular Wait

d.

No Preemption

Discuss
Answer: (c).Circular Wait
Q23.
Banker's algorithm for resource allocation deals with ?

a.

deadlock prevention

b.

deadlock aviodance

c.

deadlock recovery

d.

circular wait

Discuss
Answer: (b).deadlock aviodance
Q24.
What is the maximum number of processes that may enter simultaneously inside the critical section to avoid race condition ?

a.

One

b.

Two

c.

Three

d.

Four

Discuss
Answer: (a).One
Q25.
What are global locks ?

a.

they synchronize access to local resources

b.

they synchronize access to global resources

c.

they synchronize access to local and global resources

d.

none of above

Discuss
Answer: (b).they synchronize access to global resources
Q26.
Semophores are used to solve the problem of

a.

race condition

b.

process synchronization

c.

mutual exclusion

d.

belady problem

Discuss
Answer: (c).mutual exclusion
Q27.
Semaphores function is to

a.

synchronize critical resources to prevent deadlock

b.

synchronize processes for better CPU utilization

c.

used for memory management

d.

none of above

Discuss
Answer: (a).synchronize critical resources to prevent deadlock
Q28.
Four necessary conditions for deadlock are non pre-emption, circular wait, hold and wait and

a.

mutual exclusion

b.

race condition

c.

buffer overflow

d.

None of above

Discuss
Answer: (a).mutual exclusion
Q29.
Banker's algorithm deals with

a.

deadlock prevention

b.

deadlock avoidance

c.

deadlock recovery

d.

mutual exclusion

Discuss
Answer: (b).deadlock avoidance
Q30.
Which of following is not a condition of Dead Lock ?

a.

Mutual Exclusion

b.

No Preemption

c.

Hold and Wait

d.

Data Transfer

Discuss
Answer: (d).Data Transfer
Page 3 of 14

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