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Lpi LPI Level 3 Exam (LPI 303: Security) Sample Questions:

1. SELinux has just been installed on a Linux system and the administrator wants to use SELinux in permissive mode in order to audit the various services on the system. What command will switch SELinux into permissive mode?

A) /etc/init.d/selinux startpassive
B) setenforce 0
C) /etc/init.d/selinux stop
D) selinux passive

2. Which of the following are common techniques for securing a sendmail server? (Select THREE correct answers)

A) Enable TLS.
B) Maintain user accounts in an LDAP directory.
C) Disable VRFY.
D) Disable USRLKUP.
E) Run sendmail in a chroot'd environment.

3. The system administrator is keeping local configuration file changes in RCS. What command will commit the file to RCS revision control AND keep a local, unlocked copy of the latest version of the file?

A) ci u file
B) ci file
C) rcs o file
D) rcs commit file

4. You have downloaded a file named file.tgz along with a signature file named file.tgz.asc. Which commands can be used to verify that file.tgz has not been tampered with since the file creator created the signature?
Assume that you have already retrieved the public key of the file creator. (Select THREE correct answers)

A) gpgv file.tgz.asc
B) gpg verify file.tgz
C) gpg verify file.tgz.asc
D) gpgv verify file.tgz.asc
E) gpg verify file.tgz.asc file.tgz

5. What is true about the permissions for the file afile given the following output from getfacl? (Select TWO correct answers) % getfacl afile # file: afile # owner: matt # group: support user::rwx user:hugh:rw group::r group:staff:rx mask::rwx other::r

A) Anyone in the staff group will be able to read and execute the file.
B) The user matt will not be able to edit this file.
C) The user hugh will be able to read the contents of the file.
D) Anyone in the support group will be able to read and execute the file.
E) Anyone in the users group will be able to read the file.

Solutions: