Deck 12: Compression, System Backup, and Software Installation

Question 1

When used with the uncompress command, the ____ option displays the contents of the compress file to Standard Output.

A)-c
B)-v
C)-f
D)-r

Answer 1

A

Question 2

The tar utility cannot back up device files or files with filenames longer than 255 characters.

Answer 2

True

Question 3

The ____ option can be used with the tar command to extract a specified archive.

A)-s
B)-e
C)-x
D)-a

Answer 3

C

Question 4

When creating a system backup, temporary files in the /tmp and /var/tmp directories should be included.

Question 5

It is good form to read the Makefile after you run the configure script.

Question 6

The average compression ratio for gzip is ____%.

A)40-50
B)50-60
C)60-70
D)70-80

Question 7

When used with the compress command, the ____ option can be used to compress symbolic links.

A)-f
B)-c
C)-v
D)-r

Question 8

You can perform up to ____ different incremental backups using the dump / restore utility.

A)7
B)8
C)9
D)10

Question 9

The compression algorithm used by the compress utility has an average compression ratio of ____%.

A)30-40
B)40-50
C)50-60
D)60-70

Question 10

The ____ option, when used with the gzip command, causes the compression ratio for files that have been compressed to be listed.

A)-c
B)-f
C)-r
D)-l

Question 11

The ____ command can be used to display the contents of a compressed file.

A)acat
B)zcat
C)cat
D)ccat

Question 12

If no level of compression is specified, the gzip command assumes the number ____.

A)4
B)5
C)6
D)7

Question 13

The make command looks for a Makefile and uses the information within to compile the source code into binary programs using the ____ for the local hardware architecture.

A)cc
B)gc
C)c++
D)gcc

Question 14

When using the compress utility, each file is renamed with a(n)____ filename extension to indicate that it is compressed.

A).c
B).cmp
C).cpz
D).Z

Question 15

When using the cpio utility, the ____ option causes a new archive to be created.

A)-n
B)-c
C)-o
D)-a

Question 16

The filename extension given to files compressed with bzip2 is ____.

A).bz
B).bz2
C).gz
D).Z

Question 17

The most common package manager used by Linux systems today is the ____.

A)RPM
B)PRM
C)MPR
D)RMP

Question 18

The compress utility preserves the original ownership, modification, and access time for each file that it compresses.

Question 19

When using the gzip utility, the -1 option is also known as best compression and results in a higher compression ratio.

Question 20

When used with the tar utility, the ____ option causes filenames to be stored in an archive using absolute pathnames.

A)-a
B)-b
C)-p
D)-n

Question 21

The ____________________ utility uses the Burrows-Wheeler Block Sorting Huffman Coding algorithm when compressing files.

Question 22

What types of media are commonly used for archives? What type of media is most commonly used for archiving on Linux systems?

Question 24

A(n)____________________ backup backs up only the data that has been changed since the last backup.

Question 25

Describe the difference between full and incremental backups. Explain how both might be used to implement a back-up strategy, mentioning how the dump/restore utility can assist in this implementation. Provide an example.

Question 26

____________________ is used to reduce the size of a file or set of files.

Question 27

To remove a package from the system, you can use the ____ option to the rpm command.

A)-d
B)-e
C)-r
D)-x

Question 28

Packages in the Red Hat Package Manager format have filenames that indicate the hardware architecture for which the software was compiled, and end with the ____________________ extension.

Question 29

When backing up a system, what type of files should be archived, and what types should not?

Question 30

To view the contents of a file that was compressed with the bzip2 utility, you must used the ____________________ command.

Question 31

Describe the basic steps involved in compiling source code into a program.

Question 32

Give a short description of the gzip utility. What compression algorithm does it use, and what degree of compression is it typically able to achieve? What are some similarities and differences from the compress utility?