Practice Interrupt Mechanisms (9) - Interrupt Mechanisms

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9 questions

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6 sample questions

Question 1.
What is an interrupt?
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Think about how signals inform the CPU when to stop and start tasks.
Question 2.
What are maskable interrupts?
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Consider which interrupts might not need immediate attention.
3Question 3.
What is the purpose of an interrupt?
- To ignore peripheral signals
- To allow immediate CPU response to urgent tasks
- To create new software commands
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Think about what happens when a hardware signal requests CPU's immediate attention.
4Question 4.
True or False: Non-maskable interrupts can be ignored by the CPU.
- True
- False
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Consider the name 'non-maskable'.
Question 5.
Assess the impact of interrupt prioritization in a system with various I/O operations and how it affects real-time performance.
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Consider how prioritizing tasks affects system responsiveness.
Question 6.
Design an efficient ISR for a hardware interrupt triggered by an external sensor that requires fast processing without causing significant CPU latency.
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Think about what the ISR needs to accomplish versus what can wait.

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