Important File Extensions Questions and Answers

Answer: A

Correct answer: data file

.dat is a generic data file: the extension says only that the contents are data for some program, without identifying the program or the format.

Answer: C

Correct answer: .txt

A plain text file takes .txt - three letters, following the eight-plus-three convention that fixed most extensions at three characters.

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: B

Correct answer: VBScript File

.vb denotes Visual Basic source, and in the scripting context a VBScript file. JavaScript uses .js and Windows Script Files .wsf.

Answer: B

Correct answer: Picture File

.pct is a PICT file, the Macintosh picture format that could hold both bitmap and vector data.

Answer: B

Correct answer: .zip

.zip is the standard compressed archive format, holding one or more files compressed together.

Answer: D

Correct answer: Audio Interchange File Format

AIFF is Audio Interchange File Format, the uncompressed audio format developed by Apple, corresponding to WAV on Windows.

Answer: C

Correct answer: .cpp

.cpp is the usual extension for C++ source; the doubled p stands for the two plus signs in the language's name. Plain C source uses .c.

Answer: D

Correct answer: .sql

.sql holds SQL statements - a script of queries or a dump of a database as the commands needed to rebuild it. .db holds the database itself rather than the statements.

Answer: B

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.