QUESTION: 1

Which of the following is true of Linux passwords?

They are changed with the password utility.
They must be changed once a month.
They may consist only of lowercase letters and numbers.
They may be changed by the user who owns an account or by root.

Answer(s): A

QUESTION: 2

Assume that you have just logged on as a regular user.
Which of the following commands allows you to edit the file with user passwords associated with the Shadow Password Suite?

vi /etc/shadow
sudo -c "vi /etc/shadow"
su -c "vi /etc/shadow"
visu vi /etc/passwd

Answer(s): B

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QUESTION: 3

Under the bash shell which is the most appropriate place to set environment variables that apply to all users?

/etc/skel
rc.sysinit
/etc/profile
/etc/bashrc
rc.local

Answer(s): A

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QUESTION: 4

Which of the following measures is the most effective way to prevent attacks through various network services?

Disable a service in the appropriate /etc/xinetd.d configuration file.
Use a firewall to drop all requests to unneeded services.
Block service requests with the appropriate commands in /etc/hosts.deny.
Uninstall unneeded network services.

Answer(s): D

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