Linux Flashcards
1
Q
- Bundling utilities, management tools, and application software with a Linux kernel is called a:
A
A distribution of Linux
2
Q
- To display your current location within the filesystem, you can type:
A
pwd
3
Q
- Long command options are preceded by which two characters?
A
–
4
Q
- The ______ command will display your current working directory.
A
pwd
5
Q
- To see a list of commands that are available while viewing a man page, you can type the __ character.
A
h
6
Q
- Environment variables are:
A
Passed into other shells and commands
7
Q
- If you want to delete a variable, you can run:
A
unset
8
Q
- Local variables are:
A
Only available to the shell they are created in
9
Q
- Shell variables are used to:
A
Hold critical system information
10
Q
- The /sbin directory contains:
A
Essential administrative commands
11
Q
- To view all current variables, you can use:
A
set
12
Q
- Which file can you place in your home directory to be executed when you log off the system?
A
~/.bash_logout
13
Q
- Which file is for all bash shell users and executed every time a bash shell is opened?
A
/etc/bashrc
14
Q
- Which file is for all bash shell users and executed only at login?
A
/etc/profile
15
Q
- What command will create a variable?
A
variable=value
16
Q
- Which command will display more information about globbing?
A
man 7 glob
17
Q
- The glob pattern [a-d] would match:
A
A file name with a single character that is either a a, b, c, or d.
18
Q
- The period . character in the output of the ls command represents:
A
The current directory
19
Q
- Which command is used to perform a long listing to show file details?
A
ls -l
20
Q
- Which character at the beginning of a long listing indicates a directory?
A
d
21
Q
- The FHS sets which standard?
A
Which directories should be used to hold specific files
22
Q
- What directory is used as a temporary mount point?
A
/mnt
23
Q
- Which directory represents the root of the filesystem hierarchy?
A
/
24
Q
- Which directory is used to store user home directories?
A
/home
25
Q
- Which directory is used for the home directory of the root user?
A
/root
26
Q
- If you want to see the entire contents of a text file, you can use the _____ command:
A
cat
27
Q
- The head -n -1 readme.txt command will:
A
Display all but the last line of readme.txt
28
Q
- Which command will merge two files together line by line?
A
paste
29
Q
- If you want to break apart a large file into smaller files, you can use:
A
split
30
Q
- If you want a file to be displayed with its lines numbered, you can use:
A
nl
31
Q
- Which command can be used to scroll through a text file?
A
less
32
Q
- The regular expression a is equivalent to:
A
a{0,}
33
Q
- What does the vertical bar | character do in a regular expression?
A
Separates alternative patterns that can be matches
34
Q
- Which regular expression character matches any one character?
A
.
35
Q
- If you are in the vi command mode and want to begin inserting text before your cursor, you can type:
A
i
36
Q
- If you are in vi command mode and want to add a new line after your cursor, you can type:
A
o
37
Q
- If you want to move a character to the right in vi command mode, you can press the Right Arrow Key or:
A
l
38
Q
- To perform cut and paste in a vi document, you actually do:
A
delete and put
39
Q
- To save and then quit, you can type in command mode:
A
ZZ
40
Q
- If you want to append content to a file with the normal output of a command, you can use:
A
> >
41
Q
- This stream is the output of a command operating normally:
A
stdout
42
Q
- Two or more commands combined with the vertical bar | character between them form a:
A
pipeline
43
Q
- A popular program for monitoring running processes in real-time is:
A
top
44
Q
- The _____ command will list the commands that are running in your terminal.
A
ps
45
Q
- The key press combination that will request a process to stop is:
A
CTRL+C
46
Q
- To change the niceness value of an existing process, you can use the _____ command.
A
renice
47
Q
- To execute a command with the default priority, which value do you pass to the nice command?
A
0
48
Q
- To see how long the system has been running, you can use the _____ command.
A
uptime
49
Q
- To see the list of background processes that you have started in your shell, you can run:
A
jobs
50
Q
- To send a signal to a set of processes with the same name, you can run:
A
killall
51
Q
- To view statistics on memory availability, you can use:
A
free
52
Q
- By default, tar will attempt to extract an archive…
A
into the working directory.
53
Q
- To decompress the archive example.gz, use the following command:
A
gunzip example.gz
54
Q
- For the rwxr-x–x permission set, the highlighted permissions belong to:
A
The user owner of the file
55
Q
- The command, chmod u=g will:
A
Set the user owners permissions to match the group owners permission
56
Q
- The group ownership of a file may only be changed by:
A
Both the root user and the owner of the file
57
Q
- The only person who can change the user ownership of a file is:
A
The root user
58
Q
- The setuid permission on a file:
A
Causes the file to run under the owner’s identity
59
Q
- Which command can be used to set what your default permissions will be on new files?
A
umask
60
Q
- Which command can change the user owner of a file?
A
chown
61
Q
- Which command is used to change permissions on a file?
A
chmod
62
Q
- Which command will allow you to change the group ownership of a file that you own?
A
chgrp
63
Q
- What permissions are typically placed on soft link files?
A
rwxrwxrwx
64
Q
- Which type of link can be made to directories, hard or soft?
A
soft
65
Q
- A device name of /dev/hda1 indicates this partition is on which type of device?
A
IDE
66
Q
- A mount point is:
A
An empty directory that is used to access a filesystem
67
Q
- By default, the df command displays filesystem use in:
A
1-K block size
68
Q
- Inodes are used to store a file’s:
A
Metadata
69
Q
- The _____ command will display how much space a directory is using.
A
du
70
Q
- Missing files don’t have their original file names, instead they are named with their _____ number?
A
inode
71
Q
- How can you remove a package using an rpm command?
A
rpm -e
72
Q
- If a library is not accessible due to an error, the ldd would report which error message?
A
not found
73
Q
- What are benefits of a shared library:
A
Programs use a more consistent base of code
74
Q
- What command will find and load shared libraries when a program is executed?
A
The dynamic linker
75
Q
- Which command will create disk labels on an ext3 filesystem?
A
e2label
76
Q
- Which command will describe the mount options available for different filesystems?
A
man mount
77
Q
- Which file provides persistent mapping of block devices to mount points?
A
/etc/fstab
78
Q
- What is the primary configuration file for yum?
A
/etc/yum.d/yum.conf
79
Q
- Which command will show the dependencies of an RPM package?
A
rpm -qpR
80
Q
- In which file are repositories stored for Debian package management?
A
/etc/apt/sources.list
81
Q
- Which command may be used to get a list of the installed Debian packages?
A
dpkg -l
82
Q
- Which command will remove all files that belong to a Debian package?
A
apt-get purge
83
Q
- Which command will update the list of available packages for APT?
A
apt-get update
84
Q
- Which utility can automate changes needed for a base virtual machine image?
A
cloud-init
