CHAPTER 11

sftp command

secure ftp A version of the FTP protocol that encrypts traffic using SSH.

rsync command

remote sync Used to copy files to and from Linux computers running the rsync service using SSH encryption. It is often used to copy archives to remote computers.

scp command

secure copy Used to copy files to and from Linux computers using SSH encryption. It is often used to copy archives to remote computers.

compression

The process in which files are reduced in size by a compression algorithm

zmore command

Used to display the contents of an archive created with compress, zip, or gzip to Standard Output in a page-by-page fashion using the more command.

dpkg-reconfigure

Used to reconfigure the installation settings for an already installed DPM package.

-U

Which of the following RPM options will update a software package to the newest version, or install the package if it does not already exist on a system?

aptitude command

Used to start the Aptitude utility

apt purge test

Which of the following commands can be used to remove the test DPM package, including any test configuration files?

ldd

Which of the following commands will list missing libraries as not found if a necessary library is not installed?

-L

Which option to the dpkg command can be used to list the files that comprise a package?

ldconfig command

Used to update the /etc/ld.so.conf and /etc/ld.so.cache files.

tar -zcvf /dev/st0 *

Which of the following commands creates an archive?

compress command

Used to compress files using a Lempel-Ziv compression algorithm.

add-apt-repository command

Used to add repository information to the DPM repository database.

cpio (copy in/out) command

Used to back up a wide variety of file types, as well as view and restore files from a backup.

bzip2 command

Used to compress files using a Burrows-Wheeler Block Sorting Huffman Coding compression algorithm.

zip command

Used to compress files using a Lempel-Ziv compression algorithm.

rpm2cpio command

Used to convert an RPM package to an archive that can be accessed using the cpio command.

dd command

Used to create and restore image backups.

dump command

Used to create full and incremental backups of files on an ext2, ext3, or ext4 filesystem.

bunzip2 command

Used to decompress files compressed by the bzip2 command.

uncompress command

Used to decompress files compressed by the compress command.

gunzip command

Used to decompress files compressed by the gzip command.

zgrep command

Used to search and display the contents of an archive created with compress, zip, or gzip to Standard Output.

xzgrep command

Used to search and display the contents of an archive created with xz to Standard Output.

apt (Advanced Package Tool) command

Used to search for, install, and upgrade DPM packages from software repositories, as well as view, manage, and remove installed DPM packages.

*sum commands

Used to verify the checksum on a file where * represents the checksum algorithm. For example, to verify a SHA1 checksum, you could use the sha1sum command.

-P

What option can be added to the dpkg command to remove a specified package from the system, including any configuration files used by the package?

0

Which dump level indicates a full backup?

.tar.gz

Which filename extension indicates a tarball?

curl wget

Which of the following can be used at the command line to download a file using the HTTP protocol? (Choose two.)

cpio

Which of the following commands can be used to back up files in case of system failure, supports long filenames, and can also back up device files?

rpm -ql packagename

Which of the following commands can be used to list the files contained within an installed RPM package?

dpkg-reconfigure

Which of the following commands can be used to modify configuration options for DPM packages after they have been installed?

yum search oobla

Which of the following commands can be used to search for packages that contain the word oobla on RPM software repositories?

cpio -vicdu -I /dev/fd0

Which of the following commands extracts an archive?

ldconfig

Which of the following commands should be run following the installation of a shared library to update the /etc/ld)so)conf and /etc/ld)so)cache files?

e

Which option to the rpm command can be used to remove a package from the system?

yum

Yellowdog Updater Modified Used to install and upgrade RPM packages from software repositories, as well as manage and remove installed RPM packages.

0, 1, 2, 3, 4

You have created a full backup and four incremental backups) In which order must you restore these backups?

software utility

A program that can be used to install, update, and remove RPM packages within a desktop environment on Fedora 28

software repositories

A server on the Internet that hosts RPM or DPM packages for download.

software mirror

A software repository that hosts the same RPM or DPM packages as other software repositories for fault tolerance and load balancing of download requests.

package manager

A system that defines a standard package format and can be used to install, query, and remove packages.

aptitude

A utility that can be used to manage DPM packages using a graphical interface.

offsite backup

The process whereby an archive is copied to another computer across the Internet.

system backup

The process whereby files are copied to an archive

compression algorithim

The set of instructions used to reduce the contents of a file systematically.

False

To install a new program from RPM software repositories on the Internet, you can use the dnf update programname command) True or False?

sha256sum

Which of the following hashing algorithm commands reduces the chances of collisions due to the bit length of the message digest?

checksum

A calculated value that is unique to a file's size and contents.

6

If no level of compression is specified, the gzip command assumes what compression level?

True

Most source code is typically available on the Internet in tarball format or as a git repository. True or False?

make

When compiling source code into a binary program, which command does the compiling using the GNU C Compiler?

~configure

When compiling source code into a binary program, which command performs a system check and creates the Makefile?

dd

Which command can be used to create an image backup of a partition?

zypper command

Used to install and upgrade RPM packages from software repositories, as well as manage and remove installed RPM packages on SUSE and openSUSE Linux distributions

rpm command

Used to install, query, and remove RPM packages

dpkg-query command

Used to query installed DPM packages.

apt-cache command

Used to search DPM repositories for package information.

apt-cache apt

Which of the following commands can you use to search available repository information? (Choose two.)

/etc/ld.so.cache

Which of the following files contains the list of shared libraries?

Brasero

A common disc burning software used on Linux systems

.xz

Files that have been compressed using the xz utility typically have the ______ extension)

gcc

GNU C Compiler Used to compile source code written in the C programming language into binary programs

gzip command

GNU zip command Used to compress files using a Lempel-Ziv compression algorithm.

RPM

Redhat packet manager A package manager commonly used on Linux distributions derived from Red Hat Linux, and the default package manager used on Fedora Linux

True

The -9 option to the gzip utility results in a higher compression ratio) True or False?

False

The Debian Package Manager (DPM) is the default package manager used by Fedora 28) True or False?

compression ratio

The amount that a file size is reduced during compression.

False

The bzip2 and gzip utilities use similar compression algorithms) True or False?

incremental backup

An archive of a filesystem that contains only files that were modified since the last archive was created.

differential backup

An archive of a filesystem that contains only files that were modified since the last full backup was created. dig command

full backup

An archive of all files on a filesystem

dnf

Dandified Yum A speed improved version of the yum command used on modern Linux distributions

DPM

Debian Package Manager A package manager used on Debian and Debian-based Linux distributions, such as Ubuntu Server.

ldd command

Displays the shared libraries used by a certain program.

xz command

Used to compress files using a Lempel-Ziv compression algorithm.

apt-get command

Used to install and upgrade DPM packages from software repositories, as well as manage and remove installed DPM packages.

dpkg command

Used to install, query, and remove DPM packages

bzgrep command

Used to search and display the contents of an archive created with bzip2 to Standard Output.

unxz command

Used to decompress files compressed by the xz command.

unzip command

Used to decompress files compressed by the zip command.

bzless

Used to display the contents of an archive created with bzip2 to Standard Output in a page-by-page fashion using the less

bzmore

Used to display the contents of an archive created with bzip2 to Standard Output in a page-by-page fashion using the more command

bzcat command

Used to display the contents of an archive created with bzip2 to Standard Output.

zless command

Used to display the contents of an archive created with compress, zip, or gzip to Standard Output in a page-by-page fashion using the less command.

zcat command

Used to display the contents of an archive created with compress, zip, or gzip to Standard Output.

xzless

Used to display the contents of an archive created with xz to Standard Output in a page-by-page fashion using the less command.

xzmore command

Used to display the contents of an archive created with xz to Standard Output in a page-by-page fashion using the more command.

xzcat command

Used to display the contents of an archive created with xz to Standard Output.

curl (client for URLs)

Used to download Web pages and files from the Internet

wget command

Used to download files from the Internet.

restore command

Used to extract archives created with the dump command.

tarball

The most common command used to back up files to an archive. It can also be used to view and restore archives.

archive

The location (file or device) that contains a copy of files; it is typically created by a backup utility

tar (tape archive) command

The most common command used to back up files to an archive. It can also be used to view and restore archives.

image backup

A backup that writes data block by block to an archive without maintaining file structure information

shared library

A file that contains executable code that can be used by multiple, different programs. It is the most common type of package dependency

package group

A group of RPM packages that are commonly installed to provide a specific function on the system

package dependency

A list of packages that are prerequisite to the current package being installed on the system