OS Chapter 2 - Operating System Concepts

What is an Operating System?

• A program that compiles source code

• A set of programs used to edit text files

• A software that manages hardware and provides services for computer programs

• A virus protection software

Which of the following is a service provided by an operating system?

• Spreadsheet management

• Web browsing

• File system manipulation

• Hardware replacement

What is the main difference between CLI and GUI?

• They are the same thing

• CLI is text-based, GUI is graphical

• GUI is slower than CLI

• CLI uses graphics while GUI uses commands

Which of the following is NOT a type of system call?

• File manipulation

• Process control

• Memory management

• Web rendering

What is the purpose of APIs in relation to system calls?

• APIs offer a user-friendly interface for making system calls

• APIs provide direct access to hardware

• APIs prevent system calls from working

• APIs are used for editing images

What is the role of the user interface in an operating system?

• To store data

• To allow users to interact with the system

• To scan for viruses

• To compile code

Which of the following best describes the function of resource allocation in an OS?

• Removing viruses

• Assigning the correct resolution to the screen

• Distributing hardware and software resources to processes

• Formatting hard drives

Why is error detection important in an operating system?

• To shut down the system

• To catch and resolve faults for system stability

• To improve screen resolution

• To remove unused files

What is the main purpose of protection and security in an operating system?

• To safeguard system resources and data from unauthorized access.
• To manage hardware resources efficiently.
• To provide a user-friendly interface for applications.
• To enhance the speed of the operating system.

How do system calls work?

• System calls are used to enhance graphics performance.
• System calls are only applicable in network programming.
• System calls are a type of hardware interrupt.
• System calls allow user programs to request services from the operating system.