UPSC CISF-AC-EXE Archives

1. Android is a mobile operating system developed by

Android is a mobile operating system developed by

Microsoft

Google

Oracle

Infosys

This question was previously asked in

UPSC CISF-AC-EXE – 2018

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Android is a mobile operating system developed by Google.

– Android was originally developed by Android, Inc., which Google acquired in 2005.
– Google released the first commercial version of Android in September 2008.
– Android is based on a modified version of the Linux kernel and is open-source.

Android is the most widely used mobile operating system globally, powering smartphones and tablets from various manufacturers. Microsoft develops Windows (including Windows Phone/Mobile, now largely discontinued). Oracle is known for its database and enterprise software. Infosys is an IT services and consulting company.

2. Which one of the following is not a web browser ?

Which one of the following is not a web browser ?

Internet Explorer

Google Chrome

Microsoft Excel

Firefox

This question was previously asked in

UPSC CISF-AC-EXE – 2018

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Microsoft Excel is not a web browser; it is spreadsheet software.

– A web browser is application software for accessing information on the World Wide Web. Examples include Internet Explorer, Google Chrome, and Firefox.
– Microsoft Excel is part of the Microsoft Office suite and is used for organizing, analyzing, and storing data in tabular form.

Other popular web browsers include Safari, Opera, and Edge (which replaced Internet Explorer). Software like Microsoft Excel belongs to the category of productivity software.

3. Which one of the following is not an output device ?

Which one of the following is not an output device ?

Printer

Speaker

Plotter

Optical Mouse

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UPSC CISF-AC-EXE – 2018

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An Optical Mouse is an input device.

– Output devices receive data from a computer and present it in a human-readable form (visual, audio, physical print, etc.). Examples include printers, speakers, and plotters.
– Input devices send data and control signals to a computer. Examples include keyboards, mice, scanners, and microphones.
– An optical mouse detects movement and clicks, sending this information as input to the computer.

Printers create hard copies of digital documents. Speakers produce sound output. Plotters are used for drawing vector graphics, typically large-scale technical drawings.

4. Which one of the following is the full form of SWAYAM, a platform laun

Which one of the following is the full form of SWAYAM, a platform launched by the Government of India to offer online courses ?

Study Webs of Active-Learning for Young Aspiring Minds

Secure Webs of Activity-Learning for Young Aspiring Minds

Structured Webs of Active-Learning for Young Aspiring Minds

Study Webs of Activity-Learning for Young Aspiring Minds

This question was previously asked in

UPSC CISF-AC-EXE – 2018

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SWAYAM stands for Study Webs of Active-Learning for Young Aspiring Minds.

– SWAYAM is an online platform launched by the Ministry of Education, Government of India.
– It provides access to a wide range of courses from high school level up to post-graduation.
– The platform aims to bridge the digital divide for students who have been hitherto untouched by the digital revolution and have not been able to join the mainstream of the knowledge economy.

SWAYAM courses are offered by various national coordinators, including AICTE, NPTEL, UGC, CEC, NCERT, NIOS, IGNOU, IIMBx, and NITTTR. Courses are available free of cost, although there is a fee for certification.

5. ISO 27001 is a standard that relates to

ISO 27001 is a standard that relates to

Information Security

Quality Assurance

Infrastructure Management

Human Resource Management

This question was previously asked in

UPSC CISF-AC-EXE – 2018

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ISO 27001 is an international standard for Information Security Management Systems (ISMS).

– The ISO 27000 family of standards deals with information security.
– ISO 27001 specifically provides requirements for establishing, implementing, maintaining, and continually improving an ISMS.
– An ISMS is a systematic approach to managing sensitive company information so that it remains secure.

Certification to ISO 27001 demonstrates that an organization has implemented a robust system for managing information security risks. Other ISO standards relate to quality management (ISO 9000 family), environmental management (ISO 14000 family), etc.

6. Which one of the following is not an operating system ?

Which one of the following is not an operating system ?

UNIX

Microsoft Windows

LINUX

Microsoft Access

This question was previously asked in

UPSC CISF-AC-EXE – 2018

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Microsoft Access is not an operating system. It is a database management system (DBMS).

– An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs. Examples include UNIX, Windows, and Linux.
– Microsoft Access is application software used for creating and managing databases.

Operating systems provide the fundamental environment for other software to run. Microsoft Access runs on top of an operating system like Microsoft Windows.

7. Which one of the following communication media supports higher bandwid

Which one of the following communication media supports higher bandwidth ?

Coaxial cable

Fibre optic cable

CAT-5 UTP cable

Electrical cable

This question was previously asked in

UPSC CISF-AC-EXE – 2018

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Fibre optic cables offer significantly higher bandwidth compared to coaxial cables, CAT-5 UTP cables, and standard electrical cables used for communication.

– Higher bandwidth means the medium can transmit more data per unit of time.
– Fibre optic cables use light signals to transmit data along glass or plastic fibres, offering extremely high speeds and large bandwidths over long distances.
– Coaxial and UTP (Unshielded Twisted Pair) cables use electrical signals over copper wires, with lower bandwidth limitations compared to fibre optics.

Fibre optic cables are widely used in modern communication networks, including backbone networks, internet infrastructure, and high-speed local area networks (LANs), due to their superior performance characteristics, including high bandwidth, low signal loss, and immunity to electromagnetic interference.

8. One Terabyte (TB) of memory storage is equal to

One Terabyte (TB) of memory storage is equal to

1024 Gigabytes

1024 Megabytes

1024 Kilobytes

1024 Petabytes

This question was previously asked in

UPSC CISF-AC-EXE – 2018

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The correct option is A) 1024 Gigabytes.

– In computer memory measurement, units are typically based on powers of 1024 (2^10), which is related to the binary nature of digital systems.
– The standard progression of units is:
– 1 Kilobyte (KB) = 1024 Bytes
– 1 Megabyte (MB) = 1024 Kilobytes
– 1 Gigabyte (GB) = 1024 Megabytes
– 1 Terabyte (TB) = 1024 Gigabytes
– 1 Petabyte (PB) = 1024 Terabytes

– Storage manufacturers sometimes use decimal prefixes (powers of 1000) for marketing capacity (e.g., 1 GB = 1000 MB), but for internal computer architecture and operating system reporting, binary prefixes (powers of 1024) are conventionally used unless otherwise specified (e.g., Kibibyte, Mebibyte, Gibibyte, Tebibyte). In general knowledge questions like this, the 1024 basis is usually implied for TB, GB, MB, KB conversions.

9. The term that refers to a set of programmes and instructions that help

The term that refers to a set of programmes and instructions that helps the computer in carrying out the processing is

Hardware

Software

Storage

Input/Output

This question was previously asked in

UPSC CISF-AC-EXE – 2018

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The correct option is B) Software.

– Software is a collection of programs, data, procedures, and instructions that tell a computer how to perform specific tasks.
– It is the non-physical component of a computer system, in contrast to hardware.
– The term “set of programmes and instructions that helps the computer in carrying out the processing” precisely describes software.

– Hardware refers to the physical parts of a computer.
– Storage refers to the components used to store data (e.g., hard drive, RAM).
– Input/Output refers to the interface and devices used for communication between the computer and the user or other systems.

10. Which one of the following is the full form of ASCII code which is gen

Which one of the following is the full form of ASCII code which is generally used in the computer system ?

American Standard Code for Information Interchange

American Standard Code for Internet Interchange

Australian Standard Code for Information Interchange

Australian Standard Code for Internet Interchange

This question was previously asked in

UPSC CISF-AC-EXE – 2018

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The correct option is A) American Standard Code for Information Interchange.

– ASCII is a character encoding standard widely used in computers and other communication equipment.
– The acronym ASCII stands for American Standard Code for Information Interchange.

– ASCII is a 7-bit code that represents 128 characters, including uppercase and lowercase English letters, numbers, punctuation marks, and control characters.
– It was developed in the early 1960s and is the basis for many other character encodings.