Practice Software Interrupts (9.2.2) - Interrupt Mechanisms

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6 sample questions

Question 1.
What is a software interrupt?
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Think about how programs communicate with the OS.
Question 2.
Give one example of a system call.
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Consider actions that programs perform leading to OS requests.
3Question 3.
What initiates a software interrupt?
- Hardware signal
- Software request
- Manual command
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Consider what happens within the program’s context.
4Question 4.
True or False: Software interrupts can reduce CPU inefficiencies.
- True
- False
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Recall how polling affects CPU resources.
Question 5.
Create a flowchart that depicts how a program uses a software interrupt to access data from an external database.
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Think about the main steps involved in the interrupt process.
Question 6.
Devise a scenario where a software interrupt might fail and discuss the potential consequences.
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Consider what happens when requested services are unavailable.

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