Stale Data Occurs in Multi-CPU Machines When One Thread Modifies

question 45

Multiple Choice

Stale data occurs in multi-CPU machines when one thread modifies shared data and a second thread accesses that data later, but sees the data value before the change took place. What is required to guarantee that the second thread sees the updated data, not stale data?

• A) The second thread should not try to acquire the lock.
• B) The first thread should not try to acquire the lock.
• C) Neither thread should use locks.
• D) The first thread should release the lock after changing the data.

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Definitions:

Team Conflict

Disagreement among team members that can arise from differences in interests, values, or personal characteristics.

Forces Issues

Situations where external pressures necessitate immediate attention or resolution of a problem.

Collaborative Writing

A process where multiple individuals work together to produce a single document or piece of content, emphasizing teamwork and shared objectives.

Outlining

The process of structuring main ideas and supporting details in a hierarchical format to plan written documents or presentations.