Operating System Questions and Answers – The Critical Section (CS) Problem and Solutions

This set of Operating System Multiple Choice Questions & Answers (MCQs) focuses on “The Critical Section (CS) Problem and Solutions”.

1. Concurrent access to shared data may result in ____________
a) data consistency
b) data insecurity
c) data inconsistency
d) none of the mentioned
View Answer

Answer: c
Explanation: None.

2. A situation where several processes access and manipulate the same data concurrently and the outcome of the execution depends on the particular order in which access takes place is called ____________
a) data consistency
b) race condition
c) aging
d) starvation
View Answer

Answer: b
Explanation: None.

3. The segment of code in which the process may change common variables, update tables, write into files is known as ____________
a) program
b) critical section
c) non – critical section
d) synchronizing
View Answer

Answer: b
Explanation: None.
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4. Which of the following conditions must be satisfied to solve the critical section problem?
a) Mutual Exclusion
b) Progress
c) Bounded Waiting
d) All of the mentioned
View Answer

Answer: d
Explanation: None.

5. Mutual exclusion implies that ____________
a) if a process is executing in its critical section, then no other process must be executing in their critical sections
b) if a process is executing in its critical section, then other processes must be executing in their critical sections
c) if a process is executing in its critical section, then all the resources of the system must be blocked until it finishes execution
d) none of the mentioned
View Answer

Answer: a
Explanation: None.
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6. Bounded waiting implies that there exists a bound on the number of times a process is allowed to enter its critical section ____________
a) after a process has made a request to enter its critical section and before the request is granted
b) when another process is in its critical section
c) before a process has made a request to enter its critical section
d) none of the mentioned
View Answer

Answer: a
Explanation: None.

7. A minimum of _____ variable(s) is/are required to be shared between processes to solve the critical section problem.
a) one
b) two
c) three
d) four
View Answer

Answer: b
Explanation: None.
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8. In the bakery algorithm to solve the critical section problem ____________
a) each process is put into a queue and picked up in an ordered manner
b) each process receives a number (may or may not be unique) and the one with the lowest number is served next
c) each process gets a unique number and the one with the highest number is served next
d) each process gets a unique number and the one with the lowest number is served next
View Answer

Answer: b
Explanation: None.

Sanfoundry Global Education & Learning Series – Operating System.

Here’s the list of Best Books in Operating System.

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To practice all areas of Operating System, here is complete set on 1000+ Multiple Choice Questions and Answers on Operating System.

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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