What is the primary purpose of system calls in an Operating System?

To provide an interface between a process and the OS

Which of the following is NOT a characteristic of a microkernel?

All services run within the kernel

Which is the correct order of the first three OS phases?

Serial Processing → Simple Batch Systems → Multi-programmed Batch Systems

Which transition occurs when a process moves from the Ready state to the Running state?

The CPU scheduler selects the process for execution.

What occurs during a context switch?

CPU state is saved and another process is loaded

What is a process in an Operating System?

A running instance of a program

Which of the following is a major challenge in multithreading?

Synchronisation and race conditions

What is the primary function of an Operating System?

Managing hardware and software resources

studbud

Wk3 OS Lecture

10 termsStudBud Administration342 plays

Imported from external platform

Flashcards10 cardsFPractice quizPHost liveL

Questions 10

Answers

1
What is the primary purpose of system calls in an Operating System?
To manage hardware without OS intervention
To enhance CPU speed
To execute user-level applications
To provide an interface between a process and the OS
2
Which of the following is NOT a characteristic of a microkernel?
Minimal code in the kernel
User services run in user mode
All services run within the kernel
Kernel services run in kernel mode
3
Which is the correct order of the first three OS phases?
Simple Batch Systems → Serial Processing → Multi-programmed Batch Systems
Serial Processing → Simple Batch Systems → Multi-programmed Batch Systems
Serial Processing → Multi-programmed Batch Systems → Simple Batch Systems
Multi-programmed Batch Systems → Simple Batch Systems → Serial Processing
4
Which transition occurs when a process moves from the Ready state to the Running state?
The CPU scheduler selects the process for execution.
The process moves to the Waiting state.
The process is terminated.
The process completes I/O and becomes ready.
5
What occurs during a context switch?
Only I/O processes are switched
CPU stops working
Process is terminated
CPU state is saved and another process is loaded
6
What is a process in an Operating System?
A hardware component of the computer
A system file stored in memory
A running instance of a program
A type of user account
7
Which OS structure combines multiple design approaches to improve performance and flexibility?
Layered
Hybrid
Microkernel
Modular
8
Which part of a Process stores function calls, local variables, and return addresses?
Process Control Block (PCB)
Data Section
Heap
Stack
9
Which of the following is a major challenge in multithreading?
Synchronisation and race conditions
Easy debugging and maintenance
Reduced CPU utilisation
Increased single-thread performance
10
What is the primary function of an Operating System?
Writing and compiling code
Managing hardware and software resources
Connecting to the internet
Running antivirus software

Wk3 OS Lecture Flashcards | StudBud