303-300 Exam Questions: LPIC Exam 303: Security, version 3.0 & 303-300 Exam Preparation

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Lpi LPIC Exam 303: Security, version 3.0 Sample Questions (Q25-Q30):

NEW QUESTION # 25
Which of the following sections are allowed within the Kerberos configuration file krb5.conf?
(Choose THREE correct answers.)

A. [crypto]
B. [realms]
C. [domain]
D. [plugins]
E. [capaths]

Answer: B,D,E

NEW QUESTION # 26
Which of the following prefixes could be present in the output of getcifsacl?
(Choose THREE correct answers.)

A. SID
B. OWNER
C. ACL
D. GRANT
E. GROUP

Answer: A,C,E

NEW QUESTION # 27
In nftables, what is the purpose of a "base chain" as opposed to a "regular chain"?

A. A base chain can only contain accept rules.
B. A base chain is directly attached to a netfilter hook, such as input or forward, allowing it to receive packets from the kernel.
C. A base chain is used only for NAT rules.
D. There is no functional difference between base and regular chains.

Answer: B

Explanation:
A base chain in nftables is attached directly to one of the underlying netfilter hooks (such as prerouting, input, forward, output, or postrouting), which allows packets traversing the network stack at that point to be evaluated against the chain's rules. A regular chain, by contrast, is not attached to any hook and can only be reached when explicitly called (jumped or goto'd) from another chain, functioning similarly to a subroutine used for rule organization.

NEW QUESTION # 28
Which of the following resources of a shell and its child processes can be controlled by the Bash build- in command ulimit?
(Choose THREE correct answers.)

A. The maximum number of newly created files
B. The maximum number of open file descriptors
C. The maximum number of environment variables
D. The maximum number of user processes
E. The maximum size of written files

Answer: B,D,E

NEW QUESTION # 29
In Suricata, what is the purpose of a "rule" file, such as those found in the emerging-threats.rules collection?

A. It defines the signatures and conditions used to detect specific types of malicious or suspicious network traffic.
B. It defines firewall NAT translation rules.
C. It configures which network interfaces Suricata should monitor.
D. It defines user authentication policies for the Suricata management interface.

Answer: A

Explanation:
Suricata rule files contain individual signatures that define specific patterns, protocols, and conditions used to detect malicious or suspicious network traffic, such as known exploit attempts, malware command-and-control communication, or policy violations. Community-maintained rule sets, such as those from Emerging Threats, are commonly used alongside custom, locally written rules to provide broad detection coverage. The network interfaces to be monitored and other operational settings are instead configured in Suricata's main YAML configuration file.

NEW QUESTION # 30
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