What is the primary difference between a process and a thread? MCQ with Answer and Explanation

What is the primary difference between a process and a thread?

A. An operating system contains multiple threads but only one master process.

B. Processes can run concurrently, whereas threads can only run sequentially.

C. A process is a program in execution with its own isolated address space, while a thread is a smaller execution unit within a process.

D. Threads have larger memory spaces than processes.

Answer: Option C

Solution (By JKExamLibrary)

Processes run inside distinct, isolated memory spaces managed by the OS, whereas threads represent execution pathways sharing the resources of their parent process.

This question belongs to: Computer Operating Systems

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Question #1 Report Error

Which scheduling algorithm uses a fixed time slice called a 'quantum' to cycle through all ready processes in a circular fashion?

A. Round Robin (RR)

B. First-In, First-Out (FIFO)

C. Non-preemptive Priority

D. Shortest Remaining Time First (SRTF)

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Correct Answer: Option A

Explanation:
Round Robin (RR) is a preemptive scheduling algorithm that assigns each process a small fixed time quantum sequentially in a cyclic loop.

This question belongs to: Computer Operating Systems