1. When
you create a new partition, you need to designate its size by defining the
starting and ending _____________.
Answer: cylinders
When creating a new partition you must first specify its starting cylinder. You
can then either specify its size or the ending cylinder.
2. What
key combination can you press to suspend a running job and place it in the
background?
Answer: ctrl-z
Using ctrl-z will suspend a job and put it in the background.
3.The
easiest, most basic form of backing up a file is to _____ it to another location.
Answer: copy
The easiest most basic form of backing up a file is to make a copy of that file to another location such as a floppy disk.
The easiest most basic form of backing up a file is to make a copy of that file to another location such as a floppy disk.
4. What
type of server is used to remotely assign IP addresses to machines during the
installation process?
A) SMB
B) NFS
C) DHCP
D) FT
E) HTTP
Answer: C
A) SMB
B) NFS
C) DHCP
D) FT
E) HTTP
Answer: C
You can use a DHCP server to assign IP addresses to individual machines
during the installation process. Answers a, b, d, and e list legitimate Linux
servers, but these servers do not provide IP addresses. The SMB, or Samba, tool
is used for file and print sharing across multi-OS networks. An NFS server is
for file sharing across Linux net-works. FTP is a file storage server that
allows people to browse and retrieve information by logging in to it, and HTTP
is for the Web.
5. Which
password package should you install to ensure that the central password file couldn't
be stolen easily?
A) PAM
B) tcp_wrappers
C) shadow
D) securepass
E) ssh
Answer:C
A) PAM
B) tcp_wrappers
C) shadow
D) securepass
E) ssh
Answer:C
The shadow password package moves the central password file to a more
secure location. Answers a, b, and e all point to valid packages, but none of
these places the password file in a more secure location. Answer d points to an
invalid package.
6. When
using useradd to create a new user account, which of the following tasks is not
done automatically.
Choose one:
a. Assign a UID.
b. Assign a default shell.
c. Create the user's home directory.
d. Define the user's home directory.
Answer: c
The useradd command will use the system default for the user's home directory. The home directory is not created, however, unless you use the -m option.
Choose one:
a. Assign a UID.
b. Assign a default shell.
c. Create the user's home directory.
d. Define the user's home directory.
Answer: c
The useradd command will use the system default for the user's home directory. The home directory is not created, however, unless you use the -m option.
7. You
want to enter a series of commands from the command-line. What would be the
quickest way to do this?
Choose One
a. Press enter after entering each command and its arguments
b. Put them in a script and execute the script
c. Separate each command with a semi-colon (;) and press enter after the last command
d. Separate each command with a / and press enter after the last command
Answer: c
The semi-colon may be used to tell the shell that you are entering multiple commands that should be executed serially. If these were commands that you would frequently want to run, then a script might be more efficient. However, to run these commands only once, enter the commands directly at the command line.
Choose One
a. Press enter after entering each command and its arguments
b. Put them in a script and execute the script
c. Separate each command with a semi-colon (;) and press enter after the last command
d. Separate each command with a / and press enter after the last command
Answer: c
The semi-colon may be used to tell the shell that you are entering multiple commands that should be executed serially. If these were commands that you would frequently want to run, then a script might be more efficient. However, to run these commands only once, enter the commands directly at the command line.
8. You
attempt to use shadow passwords but are unsuccessful. What characteristic of
the /etc/passwd file may cause this?
Choose one:
a. The login command is missing.
b. The username is too long.
c. The password field is blank.
d. The password field is prefaced by an asterisk.
Answer: c
The password field must not be blank before converting to shadow passwords.
Choose one:
a. The login command is missing.
b. The username is too long.
c. The password field is blank.
d. The password field is prefaced by an asterisk.
Answer: c
The password field must not be blank before converting to shadow passwords.
9. When
you install a new application, documentation on that application is also
usually installed. Where would you look for the documentation after installing
an application called MyApp?
Choose one:
a. /usr/MyApp
b. /lib/doc/MyApp
c. /usr/doc/MyApp
d. In the same directory where the application is installed.
Answer: c
The default location for application documentation is in a directory named for the application in the /usr/doc directory.
Choose one:
a. /usr/MyApp
b. /lib/doc/MyApp
c. /usr/doc/MyApp
d. In the same directory where the application is installed.
Answer: c
The default location for application documentation is in a directory named for the application in the /usr/doc directory.
10. What
file would you edit in your home directory to change which window manager you want
to use?
A) Xinit
B) .xinitrc
C) XF86Setup
D) xstart
E) xf86init
Answer: B
A) Xinit
B) .xinitrc
C) XF86Setup
D) xstart
E) xf86init
Answer: B
The ~/.xinitrc file allows you to set which window man-ager you
want to use when logging in to X from that account.
Answers a, d, and e are all invalid files. Answer c is the main X server configuration file.
Answers a, d, and e are all invalid files. Answer c is the main X server configuration file.
11. What
command allows you to set a processor-intensive job to use less CPU time?
A) ps
B) nice
C) chps
D) less
E) more
Answer: B
A) ps
B) nice
C) chps
D) less
E) more
Answer: B
The nice command is used to change a job's priority level, so that
it runs slower or faster. Answers a, d, and e are valid commands but are not
used to change process information. Answer c is an invalid command.
12. While
logged on as a regular user, your boss calls up and wants you to create a new
user account immediately. How can you do this without first having to close
your work, log off and logon as root?
Choose one:
a. Issue the command rootlog.
b. Issue the command su and type exit when finished.
c. Issue the command su and type logoff when finished.
d. Issue the command logon root and type exit when finished.
Answer: b
You can use the su command to imitate any user including root. You will be prompted for the password for the root account. Once you have provided it you are logged in as root and can do any administrative duties.
Choose one:
a. Issue the command rootlog.
b. Issue the command su and type exit when finished.
c. Issue the command su and type logoff when finished.
d. Issue the command logon root and type exit when finished.
Answer: b
You can use the su command to imitate any user including root. You will be prompted for the password for the root account. Once you have provided it you are logged in as root and can do any administrative duties.
13. There
are seven fields in the /etc/passwd file. Which of the following lists all the
fields in the correct order?
Choose one:
a. username, UID, GID, home directory, command, comment
b. username, UID, GID, comment, home directory, command
c. UID, username, GID, home directory, comment, command
d. username, UID, group name, GID, home directory, comment
Choose one:
a. username, UID, GID, home directory, command, comment
b. username, UID, GID, comment, home directory, command
c. UID, username, GID, home directory, comment, command
d. username, UID, group name, GID, home directory, comment
Answer: b
The seven fields required for each line in the /etc/passwd file are username, UID, GID, comment, home directory, command. Each of these fields must be separated by a colon even if they are empty.
The seven fields required for each line in the /etc/passwd file are username, UID, GID, comment, home directory, command. Each of these fields must be separated by a colon even if they are empty.
14. Which
of the following commands will show a list of the files in your home directory
including hidden files and the contents of all subdirectories?
Choose one:
a. ls -c home
b. ls -aR /home/username
c. ls -aF /home/username
d. ls -l /home/username
Answer: b
The ls command is used to display a listing of files. The -a option will cause hidden files to be displayed as well. The -R option causes ls to recurse down the directory tree. All of this starts at your home directory.
Choose one:
a. ls -c home
b. ls -aR /home/username
c. ls -aF /home/username
d. ls -l /home/username
Answer: b
The ls command is used to display a listing of files. The -a option will cause hidden files to be displayed as well. The -R option causes ls to recurse down the directory tree. All of this starts at your home directory.
15 .In
order to prevent a user from logging in, you can add a(n)
________at the
beginning of the password field.
Answer: asterick
If you add an asterick at the beginning of the password field in the /etc/passwd file, that user will not be able to log in.
If you add an asterick at the beginning of the password field in the /etc/passwd file, that user will not be able to log in.
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