010-160 Archiving and Compression 3

Question 1

What does `tar -cvzf backup.tar.gz /home/user` do?

Accepted Answer

Creates a gzip-compressed archive of /home/user with verbose output

Answer

Flags -c (create), -v (verbose), -z (gzip), -f (filename) together create a compressed tar archive.

Question 2

Which utility can both compress files and create archives (unlike gzip which only compresses)?

Accepted Answer

zip

Answer

The zip utility creates archive files containing multiple files with compression, while gzip/bzip2/xz only compress single files.

Question 3

What does `gunzip -c file.gz` do?

Accepted Answer

Decompresses to stdout without modifying the original file

Answer

The -c flag writes decompressed output to standard output (stdout), leaving the original .gz file intact.

Question 4

Which command tests the integrity of a gzip-compressed file without decompressing it?

Accepted Answer

gzip -t file.gz

Answer

The -t option tests the compressed file's integrity by verifying checksums without writing any output files.

Question 5

What extension does `bzip2` add to a compressed file by default?

Accepted Answer

.bz2

Answer

By default, bzip2 appends .bz2 to the original filename, so file.txt becomes file.txt.bz2.

(010-160) LPI Linux Essentials Practice Test