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System Calls in Operating Systems

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Questions and Answers

What is a common disadvantage of kernel-based operating systems?

Supports a large number of system calls

Is highly portable

Offers excellent extensibility

May suffer from stratification (correct)

Which of the following mechanisms is typical in a kernel-based operating system?

Hybrid kernel

Monolithic kernel (correct)

Microkernel

Macrokernel

In the context of operating systems, what is a microkernel?

A kernel that supports a large number of system calls

Essential core of OS code (correct)

The non-essential part of OS code

A subset of mechanisms heavily tested

What is the main advantage of a microkernel-based operating system regarding extensibility?

New functionality can be added to user space without modifying the kernel Signup and view all the answers

Which structure can a microkernel-based operating system be compared to?

Client-server structure Signup and view all the answers

What purpose do system calls serve in an operating system?

They provide a programming interface to OS services Signup and view all the answers

What aspect does a microkernel focus on regarding system calls?

Minimizing the number of system calls it supports Signup and view all the answers

What issue is a monolithic kernel most likely to face?

Poor reliability due to excessive kernel modifications Signup and view all the answers

What distinguishes a microkernel from other kernel types?

Its focus on maintaining essential OS code in the kernel Signup and view all the answers

What function does the microkernel serve in an operating system?

It provides an interface for system calls to access OS services Signup and view all the answers