computer-File Name Extensions

What is the file extension for a standard executable program on Windows?

  • .bat
  • .sys
  • .exe
  • .bin

Explanation:

  • .exe is the standard extension for an executable file on the Windows operating system.
  • .bat is a batch file containing a series of commands.
  • .sys is a system file used for device drivers and hardware configuration.
  • .bin is a generic extension for a binary file, not specifically an executable.

Which file extension denotes a compressed archive?

  • .txt
  • .zip
  • .doc
  • .html

Explanation:

  • .zip is a common file extension for compressed archives that can contain multiple files and folders.
  • .txt is for plain text files.
  • .doc is for Microsoft Word documents.
  • .html is for hypertext markup language web pages.

A file with the .TMP extension is typically what type of file?

  • Permanent System File
  • Compressed File
  • Temporary File
  • Image File

Explanation:

  • Temporary File is correct, as .TMP files are created to hold information temporarily and are often deleted automatically.
  • They are not designed to be permanent system files.
  • They are not compressed archives like .ZIP or .RAR files.
  • They do not contain image data like .JPG or .PNG files.

What type of file is associated with the .PDF extension?

  • Portable Document Format
  • Personal Data File
  • Program Development File
  • Portable Driver File

Explanation:

  • Portable Document Format is the correct full form, developed by Adobe to present documents consistently across different devices.
  • It is not specifically for personal data, which might be stored in a database.
  • It is not a file used for program development (e.g., .c, .java).
  • It is not a driver file for hardware.

Which of these is a video file format?

  • .mp3
  • .jpg
  • .mp4
  • .pdf

Explanation:

  • .mp4 is a digital multimedia container format most commonly used to store video and audio.
  • .mp3 is an audio-only compression format.
  • .jpg is a compressed image file format.
  • .pdf is a document format.

The extension .GIF stands for what?

  • Graphical Interchange Format
  • Graphical Internet File
  • Graphics Internal Format
  • General Image Format

Explanation:

  • Graphical Interchange Format is the correct expansion, a bitmap image format supporting animations and transparency.
  • The other options are common misrememberings or incorrect expansions of the acronym.

What is the primary file extension for a Microsoft Excel spreadsheet?

  • .docx
  • .pptx
  • .xlsx
  • .accdb

Explanation:

  • .xlsx is the default file extension for workbooks created in Microsoft Excel (2007 and later).
  • .docx is for Microsoft Word documents.
  • .pptx is for Microsoft PowerPoint presentations.
  • .accdb is for Microsoft Access databases.

A file with the .ISO extension is typically a(n):

  • Isolated System Object
  • Image File
  • Disk Image File
  • International Standards Organization Document

Explanation:

  • Disk Image File is correct. An ISO file is an archive file of an optical disc, containing its exact contents and structure.
  • While it is named after the ISO 9660 file system, it is not a “document” from the organization.
  • It is not a standard image file like .JPG or .PNG.
  • “Isolated System Object” is a distractor and not a real term.

Which file extension is used for a dynamic link library in Windows?

  • .exe
  • .dll
  • .drv
  • .ini

Explanation:

  • .dll (Dynamic Link Library) is a file type containing code and data that can be used by multiple programs simultaneously.
  • .exe is for a standalone executable program.
  • .drv is a specific type of file for device drivers.
  • .ini is for initialization configuration files.

What type of file would have a .SRT extension?

  • Source Code File
  • System Restore Point
  • Sound Resource Template
  • Subtitle File

Explanation:

  • Subtitle File is correct. .SRT (SubRip Subtitle) files contain plain text for video subtitles, including timing information.
  • It is not a common extension for source code (e.g., .c, .py).
  • System Restore uses its own system, not .SRT files.
  • It is not a standard sound file format.

The extension .CSS is used for what?

  • Computer System Settings
  • Cascading Style Sheet
  • Compressed System File
  • Command Sequence Script

Explanation:

  • Cascading Style Sheet is correct. CSS files are used to define the styling and layout of web pages written in HTML.
  • The other options are incorrect expansions of the acronym.

Which of these is a system configuration file extension?

  • .tmp
  • .ini
  • .log
  • .dll

Explanation:

  • .ini (Initialization File) is a text-based configuration file used by Windows and some applications to store settings.
  • .tmp is for temporary files.
  • .log is for log files that record events.
  • .dll is for dynamic link libraries.

A file with the .BAK extension is most likely a:

  • Database File
  • Audio File
  • Backup File
  • System File

Explanation:

  • Backup File is correct. Many applications automatically create a .BAK file as a backup of a primary data file.
  • It is not a specific database format (e.g., .mdb, .accdb).
  • It is not a standard audio format.
  • While a system might use it, it is not a core system file like .SYS or .DLL.

What is the file extension for a Python script?

  • .js
  • .java
  • .py
  • .php

Explanation:

  • .py is the standard file extension for source code written in the Python programming language.
  • .js is for JavaScript files.
  • .java is for Java source files.
  • .php is for PHP: Hypertext Preprocessor scripts.

Which extension indicates a generic plain text file?

  • .txt
  • .rtf
  • .docx
  • .pdf

Explanation:

  • .txt is the most common and generic extension for an unformatted plain text file.
  • .rtf (Rich Text Format) supports basic formatting.
  • .docx is a Microsoft Word format with advanced formatting and embedding.
  • .pdf is a portable document format that can contain text, images, and formatting.

What type of file is associated with the .TORRENT extension?

  • A complete downloaded movie file
  • A compressed software archive
  • A file containing metadata for downloading
  • A disk image file

Explanation:

  • A file containing metadata for downloading is correct. A .TORRENT file does not contain the actual data to be shared; it contains metadata about the files and folders to be distributed and the URL of the tracker.
  • The actual content is downloaded using a BitTorrent client.

The extension .JPEG stands for:

  • Joint Photo Experts Graphic
  • Justified Photographic Example Group
  • Joint Photographic Experts Group
  • Jumbled Picture Enhancement Guide

Explanation:

  • Joint Photographic Experts Group is the correct name of the committee that created the standard.
  • The other options are nonsensical distractors.

Which file extension is used for a Microsoft Word document (pre-2007)?

  • .docx
  • .word
  • .doc
  • .txt

Explanation:

  • .doc was the proprietary default extension for Microsoft Word documents from Word 97 until Word 2003.
  • .docx is the current XML-based format introduced with Word 2007.
  • .word is not a standard file extension.
  • .txt is for plain text files.

A file with the .LOG extension is typically a:

  • Logical Operation Game
  • Library of Graphics
  • Record of Events
  • Lossless Optical Graphic

Explanation:

  • Record of Events is correct. A .LOG file is a text file that automatically records chronological events, processes, or messages from software or an operating system.
  • The other options are incorrect expansions of the acronym.

What is the primary file extension for a PowerPoint presentation?

  • .xlsx
  • .docx
  • .pptx
  • .pres

Explanation:

  • .pptx is the default XML-based file format for Microsoft PowerPoint presentations (2007 and later).
  • .xlsx is for Excel spreadsheets.
  • .docx is for Word documents.
  • .pres is not a standard file extension.

Which of these is an audio file extension?

  • .avi
  • .bmp
  • .wav
  • .xml

Explanation:

  • .wav (Waveform Audio File Format) is a standard audio file format for storing an uncompressed audio bitstream.
  • .avi is a video container format.
  • .bmp is a bitmap image file format.
  • .xml is for eXtensible Markup Language data files.

The extension .HTML is used for:

  • High-Level Machine Language
  • Hypertext Markup Language
  • Hardware Testing & Maintenance Log
  • Hyperlink Text Management List

Explanation:

  • Hypertext Markup Language is correct. HTML is the standard markup language for documents designed to be displayed in a web browser.
  • The other options are incorrect expansions of the acronym.

Which file extension is commonly associated with a compressed archive on Unix/Linux systems?

  • .zip
  • .tar.gz
  • .rar
  • .7z

Explanation:

  • .tar.gz is a common extension for a TAR archive that has been compressed with the Gzip compressor, widely used in Unix/Linux.
  • .zip is more universal and common on Windows.
  • .rar and .7z are other compression formats but are less native to Unix/Linux than .tar.gz.

A file with the .DAT extension is typically a:

  • Dated Archive Template
  • Generic Data File
  • Digital Audio Tape backup
  • Desktop Application Token

Explanation:

  • Generic Data File is correct. .DAT is a generic extension often used for files that contain data specific to the application that created them, not meant to be opened directly by the user.
  • The other options are incorrect and invented expansions of the acronym.

What is the file extension for a JavaScript file?

  • .java
  • .js
  • .json
  • .jscript

Explanation:

  • .js is the standard file extension for source code written in JavaScript.
  • .java is for Java source files.
  • .json is for JavaScript Object Notation, a lightweight data-interchange format.
  • .jscript is not a standard file extension.
computer-File Name Extensions