Linux+ Chapter 11
When used with the uncompress command, the ____ option displays the contents of the compressed file to Standard Output.
-c
To remove a package from the system, you can use the ____ option to the rpm command.
-e
When used with the compress command, the ____ option can be used to compress symbolic links.
-f
The ____ option, when used with the gzip command, causes the compression ratio for files that have been compressed to be listed.
-l
When using the cpio utility, the ____ option causes a new archive to be created.
-o
When used with the tar utility, the ____ option causes filenames to be stored in an archive using absolute pathnames.
-p
The ____ option can be used with the tar command to extract a specified archive.
-x
When using the compress utility, each file is renamed with a(n) ____ filename extension to indicate that it is compressed.
.Z
The filename extension given to files compressed with bzip2 is ____.
.bz2
____ is burning software that comes with Red Hat Fedora Core 2.
Brasero Disc Burner
T/F - If a compression utility compresses a file to 52% of its original size, it has a compression ratio of 52%.
False
T/F - To decompress files that have been compressed with the compress utility, you can use the decompress command followed by the names of the files to be decompressed.
False
T/F - Traditionally, CDs/DVDs were used to back up data.
False
T/F - When creating a system backup, temporary files in the /tmp and /var/tmp directories should be included.
False
T/F - When using the gzip utility, the -1 option is also known as best compression and results in a higher compression ratio.
False
Most Linux distributions today use ____ as their package manager.
RPM
Filenames that end with the .tar.gz or .tgz extensions, and represent gzip-compressed tar archives are called ____.
Tarball
T/F - Because its primary use is to back up files in case of system failure, cpio uses absolute pathnames by default when archiving.
True
T/F - It is good form to read the Makefile after you run the configure script.
True
T/F - The compress utility preserves the original ownership, modification, and access time for each file that it compresses.
True
T/F - The dump/restore utility can only work with files on ext2 and ext3 filesystems.
True
T/F - The tar utility cannot back up device files or files with filenames longer than 255 characters.
True
____ are values that are calculated using a MD5 algorithm, a SHA-1 algorithm, or a SHA-256 algorithm. Read Answer Items for Question 13.
Checksum
A ____ is a standard set of instructions used to compress a file.
Compression algorithm
The rate of compression is called the ____.
Compression ratio
The ____ command looks for a Makefile and uses the information within to compile the source code into binary programs using the appropriate compiler program for the local hardware architecture.
make
____ is a command that can be used to copy files to the appropriate location on the filesystem.
make install
____ is a command that can be used to ensure that a file was received in its entirety after you download it.
sum
The ____ command can be used to display the contents of a compressed file.
zcat
The average compression ratio for gzip is ____%.
60-70
The compression algorithm used by the compress utility has an average compression ratio of ____%.
40-50
If no level of compression is specified, the gzip command assumes the number ____.
6
____ are back-up copies of files and directories.
Archives
Archiving all data on a filesystem is performing a ____.
Full backup
You can perform up to ____ different incremental backups using the dump/restore utility.
Nine
