Deck 6: Managing Data: Backup and Recovery Processes

Question 1

Creating an archive with the tar command deletes the original data.

Answer 1

False

Question 2

To get help with the tar command, type tar --help and press Enter.

Answer 2

True

Question 3

A volume header is simply a digital label used to describe a file.

Answer 3

True

Question 4

The default standard output is the printer.

Question 5

In openSUSE, the system cron table uses the Bourne shell by default.

Question 6

The most common backup medium is ____.

A) tape
B) hard disk
C) USB
D) CD/DVD

Question 7

____ refers to unpacking the members of an archive and making them available.

A) Unzipping
B) Decompression
C) Decrypting
D) Extraction

Question 8

The tar utility was designed to store files conveniently on ____.

A) disk
B) magnetic tape
C) platters
D) memory sticks

Question 9

Which advanced tar option does not have a short name?

A) append
B) update
C) delete
D) compare

Question 10

Which cpio utility mode copies files from one directory to another?

A) copy-out
B) copy-in
C) copy-pass
D) copy-through

Question 11

Which cpio utility mode extracts files from an archive?

A) copy-out
B) copy-in
C) copy-pass
D) copy-through

Question 12

In Linux, the default standard input is the ____.

A) microphone
B) screen
C) mouse
D) keyboard

Question 13

Which symbol is used to redirect input from the keyboard?

A) ^ (carrot)
B) | (pipe)
C) < (less than)
D) > (greater than)

Question 14

Which output redirection operator is used to redirect a command's output to a file?

A) ^ (carrot)
B) | (pipe)
C) < (less than)
D) > (greater than)

Question 15

Which output redirection operator is used to make one command's output the standard input of another command?

A) ^ (carrot)
B) | (pipe)
C) < (less than)
D) > (greater than)

Question 16

What is the result of the ls > home listing command?

A) The ls command's output is redirected to the home_listing file.
B) The ls command's output is redirected to the screen.
C) The home_listing file is redirected as input to the ls command.
D) The ls command's output is merged into the home_listing file.

Question 17

How many gigabytes (GB) of data does the standard DVD hold?

A) 4.7
B) 32
C) 128
D) 256

Question 18

Which Linux utility is used to compress files?

A) zip
B) cpio
C) tar
D) gzip

Question 19

The compression ____ defines by how much a file is reduced after compressing it.

A) medium
B) program
C) ratio
D) mode

Question 20

According to the man page for the gzip utility, text files are typically reduced by ____ with compression.

A) 20% to 30%
B) 60% to 70%
C) 70% to 80%
D) 100%

Question 21

To see a compression ratio for any file, you can use the ____ option with the gzip utility.

A) -vr
B) -v
C) -r
D) -cr

Question 22

To uncompress a file compressed with the gzip utility, you use the ____ command.

A) gunzip
B) unzip
C) bunzip
D) gunzip2

Question 23

The bzip2 utility compresses files and adds the ____ extension.

A) .zp2
B) .zip
C) .bz
D) .bz2

Question 24

The cron table has ____ fields.

A) five
B) six
C) seven
D) eight

Question 25

Which command is used to create, delete, and list cron tables?

A) cron
B) cronutil
C) crontab
D) cronmg

Question 26

Only the ____ can edit the system cron table.

A) super user
B) table owner
C) root user
D) system administrator

Question 27

A(n) ____________________ copies files and directories to an archive you can use to restore data in case of a system failure or data loss and corruption.

Question 28

A(n) ____________________ is a file containing many other files, each of which is still identified by its filename, owner, permissions, timestamp, and so forth.

Question 29

The archive file's contents are called ____________________.

Question 30

A(n) ____________________ is an archive of all files on the file system.

Question 31

A(n) ____________________ is an archive containing only files modified since the last backup.

Question 32

Match each statement with an item

-This directory contains software and packages added after the default installation.

A) /etc
B) /home
C) /opt
D) /root
E) /var
F) /proc
G) /usr/bin
H) /var/spool/cron/tabs
I) /etc/crontab

Question 33

Match each statement with an item

-A directory containing data the kernel generates automatically.

A) /etc
B) /home
C) /opt
D) /root
E) /var
F) /proc
G) /usr/bin
H) /var/spool/cron/tabs
I) /etc/crontab

Question 34

Match each statement with an item

-This directory contains core configuration files, including the filesystems table, which mounts file systems automatically when Linux starts.

A) /etc
B) /home
C) /opt
D) /root
E) /var
F) /proc
G) /usr/bin
H) /var/spool/cron/tabs
I) /etc/crontab

Question 35

Match each statement with an item

-Users use this cron table to schedule tasks.

A) /etc
B) /home
C) /opt
D) /root
E) /var
F) /proc
G) /usr/bin
H) /var/spool/cron/tabs
I) /etc/crontab

Question 36

Match each statement with an item

-The system uses this cron table to schedule system tasks.

A) /etc
B) /home
C) /opt
D) /root
E) /var
F) /proc
G) /usr/bin
H) /var/spool/cron/tabs
I) /etc/crontab

Question 37

Match each statement with an item

-This directory contains system-specific information that changes while the system is running normally.

A) /etc
B) /home
C) /opt
D) /root
E) /var
F) /proc
G) /usr/bin
H) /var/spool/cron/tabs
I) /etc/crontab

Question 38

Match each statement with an item

-The root user's home directory.

A) /etc
B) /home
C) /opt
D) /root
E) /var
F) /proc
G) /usr/bin
H) /var/spool/cron/tabs
I) /etc/crontab

Question 39

Match each statement with an item

-Files in this directory rarely change, so you don't need to back them up regularly.

A) /etc
B) /home
C) /opt
D) /root
E) /var
F) /proc
G) /usr/bin
H) /var/spool/cron/tabs
I) /etc/crontab

Question 40

Match each statement with an item

-A directory where users can create scripts, files, and subdirectories; install programs; and store videos, pictures, e-mail, and so forth.

A) /etc
B) /home
C) /opt
D) /root
E) /var
F) /proc
G) /usr/bin
H) /var/spool/cron/tabs
I) /etc/crontab

Question 41

Why should you have a system backup plan in place?

Question 42

Who determines which files and directories are essential to back up and what is the concern with the /proc directory?

Question 43

What is the difference between files and members?

Question 44

Where should you store an archive if the members of the tar archive are the files in your home directory?

Question 45

When is a snapshot file created and, what does it contain?

Question 46

What commands does the copy in/out (cpio) utility use to generate files to be archived and, what are the three modes of operation?

Question 47

Describe compression.

Question 48

When should you run backups?

Question 49

Identify the two types of cron tables the cron system daemon uses.

Question 50

Compare the fields in the system cron table to those in the user cron table.