Redhat Linux free online test With Explanations and realtime situations Part 1| Infibee.com

Give Your Feedback

	Name

	Email

	Feedback

Home

General Knowledge
General Aptitude
General English
Networking
Interview Questions
- .NET
- Java
- ASP.NET
- C++
- Perl
- Python
- Ruby and Rails
- Struts
- Core Java
- Hibernate
- DB2
- MS SQL Server
- MySQL
- Oracle
- SQL
- DBMS
- Data Warehousing
- Data structures and Algorithms
- CCNA
- CCNP Routing
- CCNP Switching
- Internetworking
- Border Gateway Protocol
- MCSE
- Exchange Server
- Windows Server 2008
- DNS & Active Directory
- Firewall Questions
- Unix
- Linux Server Administrator
- Linux System Administrator
- Linux File Manipulation
Database

Instructions

Total Questions 20
Each question carry 1 mark
Must answer all the questions (otherwise report card will not be generated)
If you dont want to take a test, simply click the check answers button and view all the answers with explanations
Do Not Refresh the Page
No Time Limit
Good Luck :)

You Scored % - /

1. When installing a Redhat server that uses LVM logical volumes, you will get at least three storage volumes (partitions or LVM). Which of the following is not part of them?

A.
/boot
B.
/home
C.
/
D.
swap

Correct Answers :

[B]

Explanation :

Even if it makes sense having /home on a dedicated partition, this is not part of a default installation.

2. Which of the following statement about the system language is not true?

A.
You can change the system language from the Installation Summary screen.
B.
You can change the system language directly after booting from the installation media.
C.
When setting the installation language, you can also select a keyboard layout.
D.
After installation, you cannot change the language settings.

Correct Answers :

[D]

Explanation :

Language settings can be changed after installation. This is done easily through the Settings option in the graphical interface.

3. After setting the root password you want to use, you cannot proceed in the installation. What is the most likely cause that you cannot move on?

A.
The password is unsecure, and unsecure passwords are not accepted.
B.
The password does not meet requirements in the password policy.
C.
You also need to create a user.
D.
If an unsecure password is used, you need to click Done twice.

Correct Answers :

[D]

Explanation :

You are allowed to use an unsecure password; you just have to confirm it twice.

4. Which of the following options is not available from the Installation Summary screen?

A.
Date & Time
B.
Keyboard
C.
Language Support
D.
Troubleshoot an Existing Installation

Correct Answers :

[D]

Explanation :

Explanation: The Troubleshoot an Existing Installation option is available when booting from disk, not on the Installation Summary screen.

5. Which of the following is not a reason why Fedora should be avoided?

A.
Fedora contains features that may or may not be available in future RHEL releases.
B.
Fedora distributions show a much later state of development than RHEL.
C.
Fedora software is not stable
D.
Software in Fedora may differ from the same software in RHEL.

Correct Answers :

[C]

Explanation :

The Fedora project tries to make a stable distribution as well. There are many Fedora users around the globe who use Fedora as a production distribution.

6. You are using man -k user , but you get the message “nothing appropriate.” Which of the following solutions is most likely to fix this for you?

A.
Type updatedb to update the man database.
B.
Type makewhatis to update the man database.
C.
Type mandb to update the man database.
D.
Use man -K , not man -k .

Correct Answers :

[C]

Explanation :

The man -k command goes through a database to find the keywords you are looking for. On RHEL 7, this database is updated with the mandb command. The previously used makewhatis command is removed from RHEL 7.

Which approach works best if during the login process you want to show a message to all users who have just logged in to a shell session on your server?

A.
Put the message in /etc/issue.
B.
Put the message in /etc/motd.
C.
Put the message in /etc/profile.
D.
Put the message in /etc/bashrc.

Correct Answers :

[B]

Explanation :

The /etc/motd file contains messages that are displayed after user login on a terminal session.

8. Which of the following commands enables you to replace every occurrence of old with new in a text file that is opened with vi?

A.
:%s/old/new/g
B.
:%r/old/new/
C.
:s/old/new/g
D.
r:/old/new

Correct Answers :

[A]

Explanation :

You need the command :%s/old/new/ to replace all instances of old with new . % means that it must be applied on the entire file. s stands for substitute. The g option is used to not apply the command to only the first occurrence in a line (which is the default behavior) but on all occurrences.

9. For which of the following items can bash completion be used?

A.
Commands
B.
Files
C.
Variables
D.
All of the above

Correct Answers :

[D]

Explanation :

Bash completion works for commands, files, and variables and other names if configuration for that has been added (like hostnames for the SSH command).

10. Which of the following is not a valid method to repeat a command from history?

A.
Use Ctrl+R and start typing a part of the command.
B.
Use ! followed by the first letters in the command.
C.
Use ! followed by the number of the command as listed in history.
D.
Use Ctrl+X followed by the number in history.

Correct Answers :

[D]

Explanation :

Explanation: Ctrl+X is not a valid history command.

11. Which option enables you to add one single file to a tar archive?

A.
-a
B.
-A
C.
-r
D.
-u

Correct Answers :

[C]

Explanation :

Use the option -r to add one single file to an archive you have created with tar.

12. Which command creates a symbolic link to the directory /home in the directory /tmp?

A.
ln /tmp /home
B.
ln /home /tmp
C.
ln -s /home /tmp
D.
ln -s /tmp /home

Correct Answers :

[C]

Explanation :

The option -s is used to create a symbolic link. While creating a link, you first have to specify the source, and next you specify the destination.

13. Which statement about hard links is not true?

A.
Hard links cannot be created to directories.
B.
Hard links cannot refer to files on other devices.
C.
The inode keeps a hard link counter.
D.
If the original hard link is removed, all other hard links become invalid.

Correct Answers :

[D]

Explanation :

In hard links, no difference exists between the first and subsequent hard links.

14. Which command enables you to rename the file myfile to mynewfile?

A.
mv myfile mynewfile
B.
rm myfile mynewfile
C.
rn myfile mynewfile
D.
ren myfile mynewfile

Correct Answers :

[A]

Explanation :

The mv command enables you to move files but also to rename files.

15. Which command enables you to copy hidden files as well as regular files from /home/$USER to the current directory?

A.
cp -a /home/$USER .
B.
cp -a /home/$USER/* .
C.
cp -a /home/$USER/. .
D.
cp -a home/$USER. .

Correct Answers :

[C]

Explanation :

To copy hidden files as well as regular files, you need to put a . after the name of the directory the files are in. Answer A copies hidden files as well, but it creates a subdirectory $USER in the current directory.

16. Which option would you use with grep to show only lines that do not contain the regular expression that was used?

A.
-x
B.
-v
C.
-u
D.
-q

Correct Answers :

[B]

Explanation :

Use grep -v to exclude lines containing the regular expression from the results.

17. Which command prints the fourth field of a line in the /etc/passwd file if the text user occurs in that line?

A.
awk '/user/ { print $4 }' /etc/passwd
B.
awk -d : '/user/ { print $4 }' /etc/passwd
C.
awk -F : '/user/ $4 ' /etc/passwd
D.
awk -F : '/user/ { print $4 }' /etc/passwd

Correct Answers :

[B]

Explanation :

The awk command first needs to know which field separator should be used. This is specified with the -F : option. Then, it needs to specify a string that it should look for, which is /user/ . To indicate that the fourth field of a matching file should be printed, you need to include the { print $4 } command.

18. Which regular expression is used as a wildcard to refer to any single character?

A.
?
B.
.
C.
*
D.
&

Correct Answers :

[B]

Explanation :

The . is used as a regular expression to refer to any single character.

19. Which regular expression do you use to make the previous character optional?

A.
?
B.
.
C.
*
D.
&

Correct Answers :

[A]

Explanation :

The ? regular expression is used to refer to zero or one of the previous characters. This makes the previous character optional, which can be useful. If the regular expression is 'colou?r', for example, you would get a match on 'color' as well as 'colour'.

20. Which of the following lines would only show lines in the file /etc/passwd that start with the text welcome?

A.
grep welcome /etc/passwd
B.
grep -v welcome /etc/passwd
C.
grep $welcome /etc/passwd
D.
grep ^welcome /etc/passwd

Correct Answers :

[D]

Explanation :

When used in a regular expression, the ^ sign in front of the text you are looking for indicates that the text has to be at the beginning of the line.

Sitemap