Class 9 · कंप्यूटर · 255+ Q&A
Class 9 Computer — Operating System Important Questions with Answers (MCQ test)
IT basics, hardware, software, internet safety and MS Office for Class 9. Showing 15 of 15 on page 1 / 1.
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- अगला पेज · एक स्क्रीन पर 20 प्रश्न
Page 1 of 1 · 15 questions in this view
Q.19
MCQ
Operating System
An operating system is
- A. a physical keyboard
- B. system software that manages hardware and programs
- C. only a web browser
- D. a type of scanner
View the correct answer
Correct option: B — system software that manages hardware and programs
Windows, Linux and Android are OS families — not a fictional Windows 12 as a fact.
Q.20
MCQ
Operating System
Which of these is an operating system?
- A. MS Excel
- B. Ubuntu Linux
- C. Google Chrome only
- D. JPEG
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Correct option: B — Ubuntu Linux
Excel and Chrome run on top of an OS.
Q.21
MCQ
Operating System
Booting means
- A. deleting all files
- B. starting the computer and loading the OS
- C. sending an email
- D. drawing a slide
View the correct answer
Correct option: B — starting the computer and loading the OS
Cold boot is from power-off; warm boot is a restart.
Q.22
MCQ
Operating System
A file extension .xlsx usually belongs to
- A. PowerPoint
- B. Excel workbook
- C. Notepad only
- D. a virus always
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Correct option: B — Excel workbook
The OS uses extensions to pick a default program.
Q.23
MCQ
Operating System
Multitasking OS allows
- A. only one program ever
- B. several programs to appear to run at once
- C. no keyboard
- D. only printing
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Correct option: B — several programs to appear to run at once
The CPU switches rapidly among tasks.
Q.24
MCQ
Operating System
The Recycle Bin / Trash is used to
- A. speed the CPU clock
- B. hold deleted files until emptied
- C. update BIOS automatically
- D. create a LAN
View the correct answer
Correct option: B — hold deleted files until emptied
Emptying it frees disk space.
Q.25
MCQ
Operating System
GUI means
- A. Great USB Input
- B. Graphical User Interface
- C. General Unique IP
- D. Giga Unsigned Integer
View the correct answer
Correct option: B — Graphical User Interface
Icons, windows and menus versus a text-only command line.
Q.26
MCQ
Operating System
A strong login password should be
- A. your name and 123
- B. long, mixed and not reused on every site
- C. written on the monitor
- D. blank
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Correct option: B — long, mixed and not reused on every site
The OS can enforce password rules; users must still choose well.
Q.102
MCQ
Operating System
Android is mainly
- A. a printer brand
- B. a mobile operating system
- C. an Excel function
- D. a bit
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Correct option: B — a mobile operating system
It manages phone hardware and apps.
Q.113
MCQ
Operating System
Formatting a disk (full format) generally
- A. prints it
- B. prepares it and can erase previous file structures
- C. creates email
- D. draws a chart
View the correct answer
Correct option: B — prepares it and can erase previous file structures
Do this only with permission; data can be lost.
Q.124
MCQ
Operating System
Ctrl + Alt + Delete on many Windows PCs opens options to
- A. insert a table
- B. lock, switch user or open security/task tools
- C. start F5 always
- D. draw a circle
View the correct answer
Correct option: B — lock, switch user or open security/task tools
Exact menu depends on the Windows version in the lab — not a made-up Windows 12.
Q.135
MCQ
Operating System
A folder is
- A. only a paper file
- B. a container to organise files on storage
- C. a CPU socket
- D. an email OTP
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Correct option: B — a container to organise files on storage
Also called a directory.
Q.145
MCQ
Operating System
Sleep mode
- A. formats the disk
- B. saves state and uses little power; work can resume
- C. creates a WAN
- D. prints all files
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Correct option: B — saves state and uses little power; work can resume
Different from a full shutdown.
Q.160
MCQ
Operating System
File path C:\Class9\notes.docx shows
- A. an email CC
- B. drive, folders and file name on Windows-style systems
- C. a binary sum
- D. a URL always
View the correct answer
Correct option: B — drive, folders and file name on Windows-style systems
Backslash is common in Windows paths.
Q.169
MCQ
Operating System
Administrator rights allow a user to
- A. only change wallpaper
- B. install programs and change system settings (lab teacher account)
- C. print without paper
- D. create bits from air
View the correct answer
Correct option: B — install programs and change system settings (lab teacher account)
Students usually have limited accounts.
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