Which of the following is/are shared by all the threads in a process? I. Program counter II. Stack III. Address space IV. Registers
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GATE CSE 2017 Set 2 · Q7
MCQ1 markEasy
Time
Which of the following is/are shared by all the threads in a process? I. Program counter II. Stack III. Address space IV. Registers
Select one answerSingle correct
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Solution
Step-by-step verified solution
Official answer: B) III only
Processes, Threads and IPCThreads belonging to the same process share common process resources, including:
Address space (code segment, data segment, heap)
Open files and I/O resources
However, each thread maintains its own private execution context, which includes:
Program counter (PC)
Register set
Stack (for local variables and function calls)
Thread ID and state
Therefore, only statement III (Address space) is shared by all threads in a process.
Hence, the correct option is (B).
Try the question first, then check your work.
Examiner trap
The misconception this question tests
Recall that each thread represents an independent stream of execution with its own call stack and CPU context, but threads of the same process execute within the same memory space.
This Processes, Threads and IPC previous year question is Q7 of the GATE CSE 2017 Set 2 paper. Find more GATE CSE PYQs on Processes, Threads and IPC in Operating Systems, or browse all GATE CSE PYQs.
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Processes, Threads and IPC in GATE CSE
Processes, Threads and IPC has 15 GATE CSE PYQs across 13 papers from 2011 to 2026. 7 of them are 1-mark MCQs like this one, and it is the only one in GATE CSE 2017 Set 2.
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Independent practice explanation verified by the GateAI team. GATE is conducted by the IITs; question text follows the official paper.