1
Which of the following condition is required for deadlock to be possible?
Correct AnswerD
☑ MCQ PRACTICE
Operating Systems Unit 3
Practice objective questions for quick revision and examination preparation. Try answering each question before revealing the answer.
Operating Systems - Unit-3
2
A system is in the safe state if
Correct AnswerC
3
The circular wait condition can be prevented by
Correct AnswerA
4
Which one of the following is the deadlock avoidance algorithm?
Correct AnswerA
5
What is the drawback of banker’s algorithm?
Correct AnswerD
6
For a deadlock to arise, which of the following conditions must hold simultaneously ? ( choose all that apply )
Correct AnswerD
7
For Mutual exclusion to prevail in the system :
Correct AnswerA
8
For a Hold and wait condition to prevail :
Correct AnswerB
9
For non sharable resources like a printer, mutual exclusion :
Correct AnswerA
10
A deadlock avoidance algorithm dynamically examines the __________, to ensure that a circular wait condition can never exist.
Correct AnswerA
11
A state is safe, if :
Correct AnswerB
12
If no cycle exists in the resource allocation graph :
Correct AnswerB
13
The content of the matrix Need is :
Correct AnswerC
14
If deadlocks occur frequently, the detection algorithm must be invoked ________.
Correct AnswerB
15
A deadlock can be broken by : (choose all that apply)
Correct AnswerA and D
16
If we preempt a resource from a process, the process cannot continue with its normal execution and it must be :
Correct AnswerB
17
If the resources are always preempted from the same process, __________ can occur.
Correct AnswerD
18
A binary semaphore
Correct AnswerA
19
Mutual exclusion can be provided by the
Correct AnswerC
20
When two or more processes attempt to access the same resource a _________ occurs.
Correct AnswerD
21
Which is true regarding pipes?
Correct AnswerA
22
Advantage of FIFO over pipe is
Correct AnswerB
23
What mkfifo( ) creats?
Correct AnswerC
24
Which is Fastest IPC?
Correct AnswerB