Operating Systems MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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What does the ‘ls -l’ command do in Unix-based systems?
A. Displays detailed information about files and directories
B. Lists files in a directory
C. Changes file permissions
D. Shows disk usage
Answer: Displays detailed information about files and directories
Which command is used to list all files and directories in a Unix-based system?
A. ls
B. dir
C. list
D. show
Answer: ls
What is a virtual machine?
A. A software-based simulation of a physical computer
B. A type of hardware device
C. An operating system for mobile devices
D. A tool for managing network settings
Answer: A software-based simulation of a physical computer
Which Windows feature allows you to view and manage system performance?
A. Performance Monitor
B. Control Panel
C. Device Manager
D. Task Manager
Answer: Performance Monitor
Which command is used to shut down a Unix-based system?
A. shutdown
B. stop
C. close
D. exit
Answer: shutdown
What does the ‘chkdsk’ command do in Windows?
A. Checks and repairs disk errors
B. Lists directory contents
C. Displays system information
D. Changes file permissions
Answer: Checks and repairs disk errors
Which operating system uses the ‘Dock’ feature?
A. macOS
B. Windows
C. Linux
D. Android
Answer: macOS
What is the primary role of an operating system’s file system?
A. Organizes and stores files on a disk
B. Manages hardware resources
C. Provides network connectivity
D. Handles user input
Answer: Organizes and stores files on a disk
What does the ‘top’ command do in Unix-based systems?
A. Displays a list of running processes
B. Shows disk usage
C. Lists directory contents
D. Changes file permissions
Answer: Displays a list of running processes