Explain process vs thread and memory-sharing risks

Q: Explain process vs thread and memory-sharing risks

This question evaluates a candidate's understanding of OS concurrency fundamentals, specifically the distinction between processes and threads, memory-sharing semantics, and the concurrency hazards that arise from shared memory.

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Question

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You are asked about OS concurrency fundamentals.

Prompt

What is the difference between a process and a thread ?
Do processes and threads share memory ? Explain what is shared vs not shared in each case.
What are the risks of shared memory (especially in multi-threaded programs), and how do you mitigate them?

Assume a typical modern OS (Linux/Windows/macOS) and a language/runtime that can create OS threads.

Explain process vs thread and memory-sharing risks

Quick Overview

Prompt

Solution

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