Linux Final
In Fedora 20, where are user configured settings for Xorg stored??
/etc/X11/xorg.conf.d/
Processes are started with what nice value by default?
0
What number represents the stdin file descriptor?
0
In Linux, what runlevel is also known as the multiuser mode?
2
What number represents the stderr file descriptor?
2
What is the subnet mask for a Class B IP address?
255.255.0.0
What is the subnet mask for a Class C IP address?
255.255.255.0
How many DNS servers can be configured in the /etc/resolv.conf file?
3
How many different kill signals can be sent by the kill command to a given process?
64
Each octet in an IP address represents a binary number consisting of how many bits / bytes?
8bit
IPv6 IP addresses are delimited by what character below?
:
In order to redirect a file to the standard input of a command, what metacharacter should be used?
<
The standard output and standard error from a terminal screen within the BASH shell can be redirected to a file on the filesystem using what shell metacharacter, followed by the absolute or relative pathname of the file?
>
Fedora 20 makes use of the XFree86 ?implementation of X Windows.
False
Given the syntax command && command, the command on the left of the && construct is executed only if the command on the right of the && construct completed
False
SLIP is a newer technology than PPP.
False
The /etc/rc.d/rc 5 script only executes files that start with S in the /etc/rc.d/rc5.d/ directory.
False
The kill all command uses the PID to kill a process.
False
To prevent a file from being cleared by the BASH shell and append output to the existing output, you can specify three > metacharacters alongside the file descriptor.
False
You are limited to using one pipe | metacharacter on the command line to pipe information from one command to another command.
False
What kill signal stops a process, then restarts it with the same PID?
SIGHUP
Which kill signal terminates a process by taking the process information in memory and saving it to a file called core on the hard disk in the current working directory?
SIGQUIT
What is the most commonly used LAN protocol?
TCP/IP
'Much like the SysV init daemon, the Systemd init daemon is used to start daemons during system initialization as well as start and stop daemons after system initialization.
True
A route table is a list of TCP/IP networks that is stored in system memory.
True
After a process has been started, you can change its priority by using the renice command.
True
Any command that can be executed on the command line can also be placed inside any environment file.
True
Class D addresses are used for multicasting.
True
Each process can start an unlimited number of other processes.
True
If the /etc/at.allow and /etc/at.deny files do not exist, only the root user is allowed to schedule tasks using the at daemon.
True
Most daemon scripts accept the arguments start, stop, and restart.
True
Passwords used by the PPP daemon are stored in two files: /etc/ppp/pap-secrets and /etc/ppp/chap-secrets.
True
The ARCfour encryption algorithm uses variable-length keys up to 2048 bits in length.?
True
You can choose to use a window manager only, and not use a desktop manager.
True
You can use the sed command to remove unwanted lines of text
True
The ability to extract, manipulate, and format text using pattern action statements belongs to which command below?
awk
After a background process has been started, what command below can be used to move it to the foreground?
fg
An IPv6 IP address consists of 16-bit numbers in what numbering scheme?
hexidecimal
What command can be used to assign a TCP/IP configuration to a NIC as well as view the current configuration of all network interfaces?
iipconfig
In the /etc/lilo.conf file, what keyword should be specified in order to provide the absolute pathname to the Linux kernel?
image==
Select the command that can be used to send a small TCP/IP packet to another IP address and await a response:
ping
In the output of the ps -l command, what column is the most valuable to systems administrators because it indicates what the process is currently doing?
process state
Which command below can be used to start, stop, or restart any daemons in the /etc/init.d directory?
service
The environment variables that are set by default and their current values can be viewed with what command?
set
What stage of the GRUB boot loader typically resides on the MBR / GPT?
stage 1
In order to change keyboard layout if X Windows can't detect the layout, you should use what CLI command?
system-config-keyboard
When using Systemd, what command can be used to start, stop, and configure daemons to start automatically when the system starts?
systemctl
What command can be used to replace characters in a file sent via Standard Input?
tr
What command can be used to troubleshoot routing by displaying all routers between the current computer and a remote computer?
traceroute
Which command can be used to count the number lines, words, and characters in a file?
wc
Once X Windows is configured, what command can be used to fine tune the vertical and horizontal refresh rate?
xvidtune
Select the metacharacter that can be used to send the standard output of one command to another command as standard input:
|
Under what directory is the Linux kernel stored?
/boot
At what runlevel does a Linux system have no daemons active in memory, allowing it to be safely powered off?
0
Zombie processes are also known as defunct processes.?
True
When killing a background job with the kill command, the background job ID must be prefixed by what character below?
%
What character, when appended to a command, causes the command to be run in the background?
&
When there are multiple background processes executing in the shell, the jobs command indicates the most recent one with which symbol?
+
What option can be used with the ps command to display an entire list of processes across all terminals and including daemons?
-e
What character is used to delimit most Linux configuration files?
colon
