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patwar-s05-t04 MCQ - Practice Questions with Answers

Solve 10 patwar-s05-t04 questions for RAS/RPSC preparation.

Practice questions

Q1In device control, what enables an operating system to communicate with printers, scanners, displays, and network adapters?

A Spreadsheets
B Disk cleanup utilities
C Command history
D Device drivers
Explanation

Device drivers are the OS-related software components that let the operating system communicate with devices such as printers, scanners, displays, and network adapters. Spreadsheets are applications, disk cleanup is a utility, and command history is part of user interaction rather than device control.

Q2Which statement about compilers and interpreters is correct?

A A compiler is an operating system, and an interpreter is a disk utility.
B A compiler translates line by line, and an interpreter translates the full program at once.
C A compiler and an interpreter are both device drivers.
D A compiler translates an entire high-level program at once, while an interpreter translates line by line.
Explanation

A compiler is a language translator that converts an entire high-level program at once, while an interpreter translates line by line. Neither term names an operating system, a utility, or a device driver.

Q3Which of the following is classified as operating system software?

A MS Word
B Antivirus
C Windows NT
D MS Excel
Explanation

Windows NT is operating system software and belongs with Windows 95 and Windows 98 in this classification. MS Word and MS Excel are application software, while antivirus is a system utility.

Q4Which component is the core resource manager of an operating system?

A Kernel
B Shell
C Compiler
D Disk cleanup
Explanation

The kernel is the core resource manager of an operating system and handles CPU scheduling, memory allocation, and I/O in privileged mode. The shell is only the user interaction layer, while a compiler is a language translator and disk cleanup is a utility.

Q5Which statement correctly defines an operating system?

A System software that manages hardware resources, software resources, and the user interface
B Application software used only for preparing documents and spreadsheets
C A utility program used only to clean disks and remove viruses
D A language translator that converts program code for execution
Explanation

An operating system is system software that manages hardware resources, software resources, and the user interface. Application software, utilities, and language translators have narrower roles, so they do not fit the OS definition.

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More questions

6Match the interface type with its correct mode of interaction.

AGUI - typed text commands; CLI - windows and pointer
BGUI - windows, icons, menus, pointer; CLI - typed text commands
CGUI - device drivers; CLI - antivirus scanning
DGUI - memory allocation; CLI - file compression

7In an operating system, what is the main purpose of task scheduling?

ATo permanently store user files on secondary storage
BTo divide processor time among processes and background services
CTo translate an entire source program into machine code
DTo show icons and menus in a graphical interface

8How many of the following are system utilities, not operating systems: antivirus, disk cleanup, Windows 98, compiler?

A1
B2
C3
D4

9Which pair correctly matches an OS function with its role?

AMemory management - communicates with printers through device drivers
BFile management - divides CPU time among multiple processes
CDevice control - allocates RAM to running programs
DMemory management - allocates RAM and protects one process from another

10Which of the following is not a file management operation handled by an operating system?

ARenaming a folder
BSearching for a file
CTranslating a program line by line
DCopying a file to another folder

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