Important File Extensions Questions and Answers

Answer: A

Correct answer: DOS Batch File

A .bat file is a batch file: a plain text list of DOS commands run in sequence. The DOS command executable is .com.

Answer: D

Correct answer: Roshal Archive

.rar stands for Roshal Archive, after Eugene Roshal who designed the format. Like .zip it stores files compressed, but it supports stronger compression and splitting an archive across several volumes.

Answer: A

Correct answer: .ra

.ra is RealAudio, the streaming audio format from RealNetworks.

Answer: D

Correct answer: .ttf

.ttf holds a TrueType font, the outline font format developed by Apple and adopted by Microsoft. The outlines are described mathematically, so the glyphs stay sharp at any size.

Answer: C

Correct answer: .apk

.apk stands for Android Package Kit. It is a ZIP archive holding the compiled code, resources and manifest of an Android app, and it is what the Play Store delivers to a device at install time.

Answer: B

Correct answer: .ws

.ws is the Windows Script extension; .wsf is the related Windows Script File, which wraps one or more scripts in XML.

Answer: D

Correct answer: .deb

.deb is the Debian package format, used by Debian and Ubuntu.

Answer: D

Correct answer: .java

Java source files take .java, and the compiler turns each into a .class file of bytecode.

Answer: A

Correct answer: Self Extracting Archive

.sea is a Self-Extracting Archive on the Mac: a compressed archive that carries the code to unpack itself, so no separate utility is needed.

Answer: B

Correct answer: .bin

.bin is the extension of a MacBinary II encoded file, which packs a Mac file's data fork, resource fork and metadata into a single stream for transfer over systems that know nothing of forks.