Important File Extensions Questions and Answers

Answer: D

Correct answer: .ppt

.ppt is the PowerPoint presentation format up to Office 2003, replaced by .pptx afterwards. .pps is the same content saved to open straight into the slide show.

Answer: A

Correct answer: Tape Archive

.tar is short for Tape Archive, named for the magnetic tapes it was written to originally. It bundles many files into one without compressing them, which is why it is so often paired with gzip as .tar.gz.

Answer: A

Correct answer: .dmg

.dmg is the disk image format used on macOS. Mounting one makes it appear as a virtual disk on the desktop, which is how most Mac applications are distributed for installation.

Answer: A

Correct answer: Bitmap Image File

.bmp is a bitmap image - the raw, uncompressed Windows image format that stores the colour of every pixel.

Answer: D

Correct answer: .mkv

.mkv is the Matroska video container. It is a container rather than a codec, so one file can carry video, several audio tracks and subtitles together, whatever formats those are encoded in.

Answer: C

Correct answer: .lnk

.lnk is a Windows shortcut. It holds only a pointer to the real file along with its icon and working directory, so deleting the shortcut leaves the target untouched.

Answer: A

Correct answer: True

.sav holds a saved game - the state of play written to disk so it can be resumed - so the statement is true.

Answer: C

Correct answer: .csv

.csv is a comma-separated values file - plain text in which each line is a record and commas separate the fields, which is why almost every program can read it.

Answer: B

Correct answer: .torrent

A .torrent file holds the metadata - file names, sizes, checksums and tracker address - that a BitTorrent client needs in order to find and verify the actual content.

Answer: C

Correct answer: .tmp

.tmp marks a temporary file, created by a program while it works and normally deleted afterwards.