Questions and Answers

Q1

Compression of a file works by:Removing redundant information

Q2

In general, for which of the following would you want to use lossless compression?A log file

Q3

How would you obtain output similar to the following? compressed uncompressed ratio uncompressed_name >gzip –l tags

Q4

Which command would you use to archive the Documents directory and compress it with bzip2 compression?tar –cjf documents.tbz Documents

Q5

Which flag would you pass to tar in order to have it make a new archive?-c

Q6

In the command tar -cvjf foo.tbz a b c, what are a, b, and c?File names to be added to the archive

Q7

Given the command tar –cvjf homedirs.tbz /home, which of the following are true? (choose two)1. The command will print out each filename as it is processed 2. The output file will be compressed

Q8

You archived your users’ directories into a file called backup.tar.gz. You then view the archive and see the filenames follow this convention: home/username/somefile How will you extract just the files for the user called fred? tar –xzf backup.tar.gz home/fred/

Q9

Given a file called documents.zip, how can you see what’s in it without extracting the files?

Q10

By default, the zip command replaces uncompressed files with compressed files.False