MCQ on Operating Systems – Computer GK
Useful and informative MCQ on Operating Systems – Computer GK that include topics like Operating System, Process Management, Memory Management, File Management, Device Management, Security, Command Interpretation, OS Capability, etc.
These MCQ on Operating Systems – Computer GK are very helpful for competitive exams such as CPCT, GATE, IES/ESE, IBPS PO, IBPS Clerk, SBI PO, SBI Clerk, RBI, SEBI, LIC, NICL, BCA, B.Sc. IT, DCA, SSC, RRB, NIELIT CCC, CTET, UDC NET, CUET, MCA, PGDCA, MCS, TET, State Police, BPO, etc.
These MCQ on Operating Systems – Computer GK have correct answers and brief explanations of each question for better understanding.
Q31. Which of the following is responsible for managing I/O devices in an operating system?
a) Device driver
b) Device controller
c) I/O scheduler
d) I/O manager
Show Answer
Correct Answer: a) Device driver
Explanation: Device drivers are software components that manage communication between the operating system and hardware devices, such as disk drives, printers, and network interfaces.
Q32. What is the primary purpose of a command-line interface (CLI)?
a) To provide a graphical representation of the file system
b) To allow users to interact with the operating system using text-based commands
c) To display system performance metrics
d) To manage hardware devices
Show Answer
Correct Answer: b) To allow users to interact with the operating system using text-based commands
Explanation: A CLI allows users to interact with the operating system and run programs by typing text commands.
Q33. Which of the following is a feature of a graphical user interface (GUI)?
a) Text-based commands
b) Use of windows, icons, and menus
c) Requires knowledge of programming languages
d) Limited to system administration tasks
Show Answer
Correct Answer: b) Use of windows, icons, and menus
Explanation: A GUI uses windows, icons, and menus to carry out commands and interact with the operating system.
Q34. What is the primary goal of operating system security?
a) To prevent unauthorized access to system resources
b) To optimize system performance
c) To manage hardware devices
d) To provide a user-friendly interface
Show Answer
Correct Answer: a) To prevent unauthorized access to system resources
Explanation: The primary goal of operating system security is to protect system resources from unauthorized access, ensuring the confidentiality, integrity, and availability of data.
Q35. Which of the following is an example of a command-line interpreter?
a) Windows Explorer
b) Bash
c) Microsoft Word
d) Adobe Photoshop
Show Answer
Correct Answer: b) Bash
Explanation: Bash is a command-line interpreter for Unix-based systems, allowing users to interact with the operating system using text commands.
Q36. What is the main function of a graphical user interface (GUI) in an operating system?
a) To manage hardware devices
b) To provide a visual way for users to interact with the system
c) To optimize system performance
d) To prevent unauthorized access to system resources
Show Answer
Correct Answer: b) To provide a visual way for users to interact with the system
Explanation: A GUI provides a visual way for users to interact with the operating system, using windows, icons, and menus to perform tasks.
Q37. Which of the following is an example of a utility program?
a) Microsoft Word
b) Adobe Photoshop
c) Disk defragmenter
d) Web browser
Show Answer
Correct Answer: c) Disk defragmenter
Explanation: A disk defragmenter is a utility program that optimizes the performance of a computer’s storage by rearranging files and free space.
Q38. What is the primary purpose of a library program in an operating system?
a) To provide a collection of reusable code for application programs
b) To manage hardware devices
c) To optimize system performance
d) To prevent unauthorized access to system resources
Show Answer
Correct Answer: a) To provide a collection of reusable code for application programs
Explanation: Library programs provide a collection of reusable code that can be used by application programs, reducing the need for developers to write common functions from scratch.
Q39. Which of the following operating systems is primarily used in servers and supercomputers?
a) UNIX
b) MS-DOS
c) Microsoft Windows
d) Mac OS
Show Answer
Correct Answer: a) UNIX
Explanation: UNIX is a popular operating system used in servers, workstations, and supercomputers due to its stability, scalability, and flexibility.
Q40. Which of the following operating systems is known for its open-source nature and community-driven development?
a) Microsoft Windows
b) Mac OS
c) iOS
d) Linux
Show Answer
Correct Answer: d) Linux
Explanation: Linux is an open-source operating system that is developed and maintained by a community of developers and users, allowing for customization and modification of the source code.
More MCQ on Computer GK for Competitive Exams
- Introduction to Computer
- Basic Computer Organization
- Number Systems
- Computer Codes
- Processor and Memory
- Secondary Storage Devices
- Input and Output Devices
- Computer Software
- Flowchart and Computer Languages
- System Implementation
- Operating Systems
- Application Software Packages
- Business Data Processing
- Communications and Networks
- Internet Concepts and IoT
- Multimedia and File Extensions
- Classification of Computers
- Cyber Safety and Cyber Crime
- Computer Viruses and Security
- Basic Computer Shortcut Keys
- Shortcut Keys for Windows
- Shortcut Keys for MS Excel
- Shortcut Keys for MS Word
- Computer Abbreviations Set 1
- Computer Abbreviations Set 2
- Computer Abbreviations Set 3
Get free Text Content Tools, Website Management Tools, Development Tools, Binary Converter Tools, Unit Converter Tools and SEO Tools on EuWebTools.