102-400 Exam Questions

X is running okay but you're concerned that you may not have the right color depth set. What single command will show you the running color depth while in X?

Your senior administrator asked you to change the default background of his machine, which uses XDM. Which file would you edit to achieve this?

Which of the following lines is an example of a correct setting for the DISPLAY environment variable?

You have just set up the X Display Manager as your default display manager. What file should you edit to change the default background for it?

Of the ways listed, which is the best method to temporarily suspend a user's ability to interactively login?

Which command should be added to /etc/bash_profile to change the language of messages from an internationalised program to Portuguese (pt)? (Select TWO correct answers)

What is the main difference between the batch and at commands?

Which of the following can the chage command NOT change?

Which crontab entry could be used to set the system time at regular intervals?

Which of the following commands can be used to convert text files in one character encoding to another character encoding?

Which commands can you use to change a user's account aging information? (Choose THREE correct answers.)

A French user has installed the French language pack, but currencies are still being displayed with a leading '$' sign in his spreadsheets. What must be done to fix this?

The correct crontab entry to execute the script chklog three times per month between 3 p.m. and 5 p.m.:

Of the ways listed, which is the best way to temporarily suspend a single user's ability to interactively login?

Which command will set the local machine's timezone to UTC?

What is the conventional purpose of Linux UIDs that are lower than 100?

Why is /etc/shadow not world readable if the passwords are stored in an encrypted fashion?

Which TWO statements about crontab are true?

On a system using shadowed passwords, the most correct permissions for /etc/passwd are ___ and the most correct permissions for /etc/shadow are _________.

How is the file format of /etc/crontab different from a normal crontab file? (Select TWO correct answers)

On a dual boot system, every time the system is booted back into Linux the time has been set backward by one day. Which of the following commands will correct the problem?

Which of the following commands is used on the command line to send messages to the syslog systems?

Which of the following is NOT a Mail Transport Agent?

Which file, when using Sendmail or a similar MTA system, will allow a user to redirect all their mail to another address and is configurable by the user themselves?

Which of the following commands is used to restore files from backups made with dump?

You found these lines in the modules.dep file: /lib/modules/2.2.5-15smp/fs/msdos.o: /lib/modules/2.2.5-15smp/fs/fat.o Which of the following is true?

Your senior systems administrator asks you to set up a new machine with Apache listening on port 8088. Which Apache config file would you edit to change the default port to 8088?

Which command would you use to apply the changes in a diff file to your existing kernel source?

Which of the following commands can be used to customize all kernel compilation options? (Choose Three)

When an Apache server is configured to provide 10 spare server processes, which kind of website would it typically serve?

The normal way of starting your Apache server would be the command:

You are a junior administrator of a high-traffic production web server. Which of the following commands would you run to restart the Apache web service without aborting existing co...

Which of the following PPP authentication protocols never sends a password in the clear?

When using PAP with PPP, the /etc/ppp/pap-secrets file must be

In the output of iptables -L -n is the line ACCEPT all - - 10.69.70.5 0.0.0.0/0 listed under the INPUT chain. What does this line mean?

Which of the following lines would you find in the file /etc/host.conf?

Which of the following protocols uses two different network ports?

In order to bypass print filters using lpr, which of following switches should be used:

Which THREE statements about crontab are true?

Suppose that the command netstat -a hangs for a long time without producing output. You might suspect:

Identify the statement that would create a default route using a gateway of 192.168.1.1.

Which of the following lines would you find in the file /etc/nsswitch.conf?

Which TWO of the following Class B IPv4 networks are reserved by IANA for private address assignment and private routing?

Which of the following lines would you find in the file /etc/resolv.conf?

Which of the following commands can deconfigure a network interface?

Which of the following commands can be used to activate a specific network interface?

Which of the following describes the Linux ping packet or datagram?

Which of the following looks like a correct entry in the /etc/hosts file?

What is the purpose of the dig command?

You suspect that a gateway machine on your network has failed but you are unsure which machine. Which command will help locate the problem?