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

1. What does the following iptables rule accomplish:
iptables A INPUT s 208.77.188.166 d 10.142.232.1 p tcp dport 22 j ACCEPT

A) Forwards all requests from the host 10.142.232.1 on port 22 the internal host 208.77.188.166
B) Forwards all requests from the host 208.77.188.166 on port 22 the internal host 10.142.232.1
C) Accepts traffic on port 22 only from the hosts 208.77.188.166 and 10.142.232.1.
D) Drops traffic on port 22 only from the hosts 208.77.188.166 and 10.142.232.1.

2. SELinux is a Linux feature that:

A) monitors system file access by unprivileged users and warns them when they are trying to gain access to files beyond their permission levels set in the Mandatory Access Control policies.
B) enforces Mandatory Access Control policies that can restrict user space programs and system servers to the minimum amount of privilege required to operate correctly.
C) provides only Mandatory Access Control policies. Additional access control models such as Rolebased access control require additional tools to implement.
D) ensures that system files referenced in the Mandatory Access Control policies are not modified and alerts administrators when changes occur.

3. Linux Extended Attributes include attribute classes. Which of the following are included in the defined attribute classes? (Select THREE correct answers)

A) user
B) default
C) system
D) trusted
E) owner

4. In the Puppet centralized configuration management tool, a manifest is:

A) a list of all target configurations.
B) a configuration document that describes the target configuration and the steps required to achieve it.
C) a list of all files related to a configuration target.
D) a list of the important services on a target configuration.

5. By default, when verifying a signed file or a file with a detached signature, which keyring is used to search for public keys?

A) ~/.gnupg/pubring.gpg
B) ~/.gnupg/trustedkeys.gpg
C) ~/.gnupg/trustdb.gpg
D) ~/.gnupg/secring.gpg

Solutions: