Practice What Is A System Call? (6.2.1) - Communication Between Kernel and User Space

Practice: What is a System Call?

Lesson 6.2.1Communication Between Kernel and User Space

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9 questions

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6 sample questions

Question 1.
What is a system call?
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Think of it as a way to ask the operating system for something.
Question 2.
Name one example of a system call.
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What functions do you use to access files?
3Question 3.
What does a system call do?
- It provides user interface options
- It allows applications to request services from the kernel
- It creates new files
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Think about how applications interact with the system.
4Question 4.
True or False: A system call can directly access hardware.
- True
- False
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Consider the security model in operating systems.
Question 5.
Describe a scenario in which a user-space application must use multiple system calls for its operations. What are those calls and how do they work together?
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Think about how data flows through an application.
Question 6.
Imagine a system without context switching. Discuss the potential issues that could arise in such an environment with regards to system calls.
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Consider what happens if apps could directly access hardware.

5 more questions in this section. Enroll free to practise them all.