Operating Systems MCQs | STS IBA FPSC BPSC SPSC PPSC Mcqs Test Preparation
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Which of the following operating systems is NOT Unix-based?
A. Windows
B. macOS
C. Linux
D. BSD
Answer: Windows
Which of the following is a feature of a real-time operating system?
A. Immediate response to external events
B. Multitasking support
C. Graphical user interface
D. High-level programming support
Answer: Immediate response to external events
What does the ‘ping’ command do?
A. Tests network connectivity
B. Lists directory contents
C. Displays system information
D. Changes file permissions
Answer: Tests network connectivity
What does the ‘shutdown’ command do in Windows?
A. Closes all programs and shuts down the computer
B. Opens the system settings
C. Installs updates
D. Restarts the computer
Answer: Closes all programs and shuts down the computer
Which of the following is a common Linux distribution?
A. Ubuntu
B. Windows 10
C. macOS Catalina
D. Android 10
Answer: Ubuntu
Which operating system is open-source and known for its security features?
A. Linux
B. Windows
C. macOS
D. iOS
Answer: Linux
What does the ‘df’ command show in Unix-based systems?
A. Disk space usage
B. Directory contents
C. Running processes
D. File permissions
Answer: Disk space usage
Which of the following is NOT a type of operating system?
A. Real-time OS
B. Multitasking OS
C. Network OS
D. System OS
Answer: System OS
Which key combination locks the screen in Windows?
A. Windows + L
B. Ctrl + L
C. Alt + L
D. Windows + D
Answer: Windows + L