LINUX FINAL

[1-4]

Using wildcard metacharacters, how can one indicate a number is either 1, 2, 3, or 4?

pg_dump

What PostgreSQL command-line utility backs up PostgreSQL database settings?

SCSI-3 Ultra2 Wide

What SCSI type supports speeds of up to 80 MB/second?

​#!

What character combination at the start of a shell script are referred to as a hashpling, and allow for the specification of the shell that interprets the contents of the script?

/dev/ttyS1

What character device file represents the second serial port on a system (COM2)?

&

What character, when appended to a command, causes the command to be run in the background?

​lilo -U

What command below can be used to uninstall the LILO bootloader from an active partition?​

rm

What command below takes a list of arguments specifying the absolute or relative pathnames of files to remove?

ulimit

What command can be used to change the maximum number of file handles that can be used by a program?​

tr

What command can be used to replace characters in a file sent via Standard Input?

traceroute

What command can be used to troubleshoot routing by displaying all routers between the current computer and a remote computer?

DirectoryIndex index.html

What directive below in Apache's httpd.conf file specifies that the index.html file in the document root directory will be sent to clients who request an HTML document?

50

What is the default print job priority for all print jobs created by the lp command?

quiet

What keyword tells the Linux kernel to avoid printing errors to the screen during system startup?​

SIGHUP

What kill signal stops a process, then restarts it with the same PID?

secure

What log file contains information and error messages regarding network access generated by daemons such as ssd and xinetd?

2

What number represents the stderr file descriptor?

​!

What operator below is known as the NOT operator?

-e

What option can be used with the ps command to display an entire list of processes across all terminals and including daemons?

-P

What option for the iptables command can be used to specify the default policy for a certain chain type?

-e

What option, when added to the crontab command, opens the vi editor with a user's cron table?

write

What permission grants a user the ability to open, read, and edit the contents of a file?

FTP

What service provides a method for the efficient transfer of files over the Internet?

GNU Public License

What stipulates that the source code of any software published under its license must be freely available.

Secure Shell (SSH)

What tool below was designed as a secure remote access utility that encrypts information that passes across the network?

False

When a user interacts with his computer, he interacts directly with the kernel of the computer's operating system.

False

When connecting to the vsftpd daemon using an FTP client utility as the user "anonymous", you will be placed in the root user's home directory.

%

When killing a background job with the kill command, the background job ID must be prefixed by what character below?

+

When there are multiple background processes executing in the shell, the jobs command indicates the most recent one with which symbol?

-f

When used with the compress command, what option below can be used to compress symbolic links?

True

When you insert a DVD while in a GUI environment, it is automatically mounted by the system to a directory underneath the /media directory that is named for the label on the DVD.

True

When you print to a printer class, the print job is send to the first available printer in the printer class.

​/var/log/samba

Where are the log files for the Samba daemon located?​

whoami

Which Linux command can be utilized to display your current login name?

Ctrl+g

Which of the following key combinations, commonly used in the vi editor command mode, displays current line statistics?

-q

Which sar command option is used to display statistics for the processor queue?

True

You can use the sed command to remove unwanted lines of text.

True

You can use wildcard metacharacters with the find 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?

4

A hard drive or SSD can be divided into partitions. What is the maximum number of primary partitions that can be used on these devices?

True

A route table is a list of TCP/IP networks that is stored in system memory.

False

A swap partition contains a filesystem.

True

The ARCfour encryption algorithm uses variable-length keys up to 2048 bits in length.​

​Free Software Foundation (FSF)

The GNU General Public License (GPL) was developed by which organization?​

​4 GB

The GUI components and related software take up how much space on a typical Linux installation?

514

The System Log Daemon uses what TCP and UDP port to accept incoming requests from another System Log Daemon on a remote system?​

False

The command strings /bin/echo displays the raw binary characters inside the /bin/echo binary executable program.

127

The first software RAID volume on a system will​ use a multiple disk device file that starts with what number?

False

The rmdir command automatically removes a directory and all of its subdirectories and files.

shell

After logging into a terminal, a user will receive an interface known as which option below?

​grub-mkconfig

After modifying the /etc/default/grub file, what command should be run to rebuild the grub config files?​

True

All DNS servers contain a DNS cache file.

rpm2cpio

An RPM package can be converted to a cpio archive using what command?

True

Any command that can be executed on the command line can also be placed inside any environment file.

1024

By default, the shell on a Linux system limits the number of filehandles a program can have open to what value?

True

Each computer on a network requires a unique way to identify itself and to refer to other computers. This is accomplished by using IP addresses.

False

Each device attached to a system can be represented by multiple device files.

xwininfo

If X Windows fails to start, what command can be used to troubleshoot the issue?

True

If the / filesystem becomes corrupted, the system is unstable and must be turned off.

False

In Linux, you are restricted to using only one type of filesystem on a system.

7

In a SCSI chain the highest priority SCSI device is given what SCSI ID?

system-config-keyboard

In order to change keyboard layout if X Windows can't detect the layout, you should use what CLI command?

lp

In order to send a print job to a printer using CUPS, what command must be used?

image=

In the /etc/lilo.conf file, what keyword should be specified in order to provide the absolute pathname to the Linux kernel?

swapoff

In the event that you wish to disable a swap partition, what command must be used?

False

In the past, SATA hard disks were referred to as Integrated Drive Electronics (IDE).​

1991

In what year was the source code for the Linux kernel released?

True

Linux uses a logical directory tree to organize files into different folders.

RPM

Most Linux distributions make use of what package manager?

15

Most Parallel SCSI controllers are capable of supporting up to how many devices?

​0

On Linux, the root user always has a UID of what number?​

True

SCSI devices that act as a gateway are associated with a unique Logical Unit Number (LUN)​

DROP DATABASE

Select the SQL statement below that can be used to delete a database:

locate

Select the command below that utilizes a premade database that contains a list of all the files on a system:

ping

Select the command that can be used to send a small TCP/IP packet to another IP address and await a response:

-l

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

*

Select the regular expression metacharacter that matches 0 or more occurrences of the previous character.

cat data

To display the contents of a text file called data, what command should be used?

mount -a

To mount all filesystems in the /etc/fstab file that are intended to mount at boot time, what command can be used?

​ntp_query

​What command can be used to see what actual time servers are being used for synchronization?

​RAID-Z

​A ZFS volume that uses a variable stripe size and requires a minimum of three hard disks to protect against single disk failure is known as:

True

​The database for the locate command can be updated manually by using the updatedb command.

​Total cost of ownership (TCO)

​The overall cost of using a particular operating system is known as?

​dpkg-query

​What command can be used to search for DPM package information?