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Operating System — GK Questions with Answers

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50 questions
  1. The software that controls the internal working of the computer —
    1. Shareware
    2. Public domain software
    3. Application software
    4. Operating system
    Show answer

    Answer: (D) Operating system

    The OS runs the whole computer.

  2. What kind of software is an operating system?
    1. Accounting
    2. Application
    3. System
    4. Utility
    Show answer

    Answer: (C) System

    The OS is system software.

  3. The right reason to use an OS —
    1. To manage resources
    2. To control the hardware
    3. To provide an interface between user and hardware
    4. All of these
    Show answer

    Answer: (D) All of these

    All of these are its jobs.

  4. What is a program in execution called?
    1. Process
    2. Instruction
    3. Procedure
    4. Function
    Show answer

    Answer: (A) Process

    Process = a program in execution.

  5. A file that holds instructions that the computer can carry out is —
    1. A data file
    2. An information file
    3. An executable file
    4. An application file
    Show answer

    Answer: (C) An executable file

    Such as .exe.

  6. Not a part of UNIX —
    1. Kernel
    2. Shell
    3. Programs
    4. Linux
    Show answer

    Answer: (D) Linux

    Linux is a separate OS.

  7. The process of holding data in a spool (buffer) to send to a peripheral later —
    1. Multiprogramming
    2. Spooling
    3. Caching
    4. Virtual programming
    Show answer

    Answer: (B) Spooling

    The printer queue is an example.

  8. Collecting a company’s transactions and processing them in one go —
    1. Database management system
    2. Batch processing
    3. Real-time system
    4. On-time system
    Show answer

    Answer: (B) Batch processing

    Gathering and running together = batch.

  9. The OS that lets only one user work at a time —
    1. Single-user
    2. Multi-user
    3. Multitasking
    4. Real time
    Show answer

    Answer: (A) Single-user

    PC operating systems are usually single-user.

  10. The Windows operating system is —
    1. Multitasking, multiuser
    2. Multiuser, single-tasking
    3. Single-user, multitasking
    4. Single-tasking, single-user
    Show answer

    Answer: (C) Single-user, multitasking

    Windows: one user, many programs.

  1. When is an OS called multi-user?
    1. More than one program runs at once
    2. More than one user can work at once
    3. Either (1) or (2)
    4. None
    Show answer

    Answer: (B) More than one user can work at once

    Many programs = multitasking.

  2. Services that let two or more tasks/programs run simultaneously —
    1. Multitasking
    2. Multithreading
    3. Multiprocessing
    4. Multicomputing
    Show answer

    Answer: (A) Multitasking

    Through process and memory management.

  3. Executing more than one file at once on a single processor —
    1. Single tasking
    2. Multi-tasking
    3. Scheduling
    4. Multiprocessing
    Show answer

    Answer: (B) Multi-tasking

    One processor, many jobs.

  4. The feature giving an economical interactive system for two or more users —
    1. Time sharing
    2. Multisharing
    3. Time tracing
    4. Multiprocessing
    Show answer

    Answer: (A) Time sharing

    Slices of time.

  5. Two or more programs processed by multiple processors together —
    1. Multiprogramming
    2. Multitasking
    3. Time sharing
    4. Multiprocessing
    Show answer

    Answer: (D) Multiprocessing

    Many processors = multiprocessing.

  6. RTOS stands for —
    1. Real-Time Operating System
    2. Reliable Time Operating System
    3. Reboot Time Operating System
    4. None of these
    Show answer

    Answer: (A) Real-Time Operating System

    The OS that responds in a fixed time.

  7. The simplest form of multitasking —
    1. Pre-emptive
    2. Cooperative
    3. Hard
    4. Soft
    Show answer

    Answer: (B) Cooperative

    It keeps the CPU as long as it needs.

  8. The means by which an OS interacts with the user —
    1. Program front-end
    2. Programming interface
    3. User login
    4. User interface
    Show answer

    Answer: (D) User interface

    This is the user interface.

  9. Who designed the first GUI?
    1. Apple Inc.
    2. Microsoft
    3. Xerox Corporation
    4. None of these
    Show answer

    Answer: (C) Xerox Corporation

    Xerox, in the 1970s.

  10. Only typed text commands, as in MS-DOS —
    1. CUI
    2. CLI
    3. Both CUI and CLI
    4. GUI
    Show answer

    Answer: (C) Both CUI and CLI

    Both are the same.

  1. Which process checks that the components are connected and operating properly?
    1. Booting
    2. Processing
    3. Saving
    4. Editing
    Show answer

    Answer: (A) Booting

    Booting includes checks and loading of the OS.

  2. What happens when a PC boots?
    1. Portions of the OS are copied from disk into memory
    2. Portions of the OS are copied from memory onto disk
    3. Portions of the OS are compiled
    4. The PC switches off
    Show answer

    Answer: (A) Portions of the OS are copied from disk into memory

    From disk into memory.

  3. Restarting a computer that is already ON —
    1. Cold booting
    2. Warm booting
    3. Shut down
    4. Logging off
    Show answer

    Answer: (B) Warm booting

    With Ctrl + Alt + Del.

  4. Who developed the first version of UNIX?
    1. Ken Thompson
    2. Presper Eckert
    3. J W Mauchly
    4. Herman Hollerith
    Show answer

    Answer: (A) Ken Thompson

    Ken Thompson and Dennis Ritchie (1969).

  5. The PC and the Apple Macintosh are two different —
    1. Platforms
    2. Applications
    3. Programs
    4. Storage devices
    Show answer

    Answer: (A) Platforms

    Two different platforms.

  6. Choose the operating system from the list.
    1. Linux
    2. Debugger
    3. Mozilla
    4. Google Chrome
    Show answer

    Answer: (A) Linux

    The others are a tool or browsers.

  7. Linux is which type of software?
    1. Shareware
    2. Commercial
    3. Proprietary
    4. Open source
    Show answer

    Answer: (D) Open source

    The source code is open to all.

  8. Windows software was developed by which company?
    1. Microsoft Corporation
    2. IBM
    3. Wipro
    4. Apple
    Show answer

    Answer: (A) Microsoft Corporation

    Microsoft.

  9. Pick the one that is no mobile OS —
    1. Android
    2. Safari
    3. Symbian
    4. iOS
    Show answer

    Answer: (B) Safari

    Safari is a browser.

  10. The OS first developed by Microsoft —
    1. Windows ME
    2. Windows NT
    3. Windows 97
    4. MS-DOS
    Show answer

    Answer: (D) MS-DOS

    MS-DOS came first.

  1. The batch file that runs automatically when MS-DOS boots —
    1. Config.sys
    2. Config.bat
    3. Autoexec.bat
    4. Run.bat
    Show answer

    Answer: (C) Autoexec.bat

    Autoexec.bat.

  2. MS-DOS used to come on —
    1. Hard disk
    2. Cartridge tape
    3. CD-ROM
    4. Floppy disk
    Show answer

    Answer: (D) Floppy disk

    It can be loaded from a single disk.

  3. The main program of MS-DOS —
    1. Boot Record
    2. ID.sys
    3. MSDOS.sys
    4. Command.com
    Show answer

    Answer: (A) Boot Record

    The boot record loads the OS into memory.

  4. The one known as a single-user OS —
    1. Windows
    2. Linux
    3. Unix
    4. DOS
    Show answer

    Answer: (D) DOS

    DOS is single-user.

  5. Windows differs from DOS chiefly in being able to —
    1. Multitask
    2. Speed up
    3. Run a program
    4. Run without power
    Show answer

    Answer: (A) Multitask

    Windows can multitask.

  6. In DOS the “>” sign is meant for —
    1. Compare two values
    2. Redirect input
    3. Redirect output
    4. Filter data
    Show answer

    Answer: (C) Redirect output

    It sends the output elsewhere.

  7. The drive letter of the primary hard disk in DOS is usually —
    1. A
    2. B
    3. C
    4. D
    Show answer

    Answer: (C) C

    A and B are for floppies.

  8. Not a usual file extension in DOS —
    1. .exe
    2. .bat
    3. .0
    4. .com
    Show answer

    Answer: (C) .0

    .0 is not usual.

  9. Commands automatically loaded into main memory after booting —
    1. Internal
    2. External
    3. Viral
    4. Situational
    Show answer

    Answer: (A) Internal

    Internal.

  10. MS-DOS commands that need external files to perform —
    1. Internal
    2. External
    3. Batch
    4. Redirectories
    Show answer

    Answer: (B) External

    External.

  1. Not an external command of DOS —
    1. LABEL
    2. FORMAT
    3. CHKDSK
    4. CLS
    Show answer

    Answer: (D) CLS

    CLS is internal.

  2. CHKDSK helps to find out —
    1. The disk’s bad portion
    2. Occupied space
    3. Free space
    4. All of these
    Show answer

    Answer: (D) All of these

    All three.

  3. The command that transfers a file from one disk to another —
    1. COPY
    2. DISKCOPY
    3. TIME
    4. RENAME
    Show answer

    Answer: (A) COPY

    COPY.

  4. The command that displays the files and sub-directories of a directory —
    1. DER
    2. DIS
    3. DIR
    4. DAR
    Show answer

    Answer: (C) DIR

    DIR.

  5. The purpose of the DISKCOPY command —
    1. Format the disk first if it is unformatted
    2. Overwrite the destination disk
    3. Produce a twin of a floppy disk
    4. All of the above
    Show answer

    Answer: (D) All of the above

    All of it happens; the aim is an exact copy.

  6. The command to delete a file from a directory —
    1. REN
    2. DEL
    3. CD
    4. MD
    Show answer

    Answer: (B) DEL

    DEL.

  7. The command to delete a directory with all sub-directories and files —
    1. Delete
    2. Del
    3. Deltree
    4. Move
    Show answer

    Answer: (C) Deltree

    Deltree.

  8. What kind of command is FORMAT in DOS?
    1. Internal
    2. External
    3. Batch
    4. Viral
    Show answer

    Answer: (B) External

    FORMAT is external.

  9. Which DOS command gives a name to a disk —
    1. VOL
    2. REN
    3. LABEL
    4. CLS
    Show answer

    Answer: (C) LABEL

    LABEL.

  10. What does a command like DIR TOOL?.bas do?
    1. Lists one named file
    2. Lists a group of files (“?” stands for one character)
    3. Deletes a file
    4. Copies a file
    Show answer

    Answer: (B) Lists a group of files (“?” stands for one character)

    The “?” is a wildcard.

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