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Lpi LPIC Exam 303: Security, version 3.0 Sample Questions:

1. Which command revokes ACL-based write access for groups and named users on the file afile?

A) setfacl ~m group: * : rx, user :*: rx afile
B) setfacl -x group: * : rx, user:*: rx afile
C) setfacl -x mask: : rx afile
D) setfacl ~m mask: : rx afile

2. What is a symmetric key?

A) A key used for both encryption and decryption that is generated randomly
B) A key used for encryption and decryption that is the same
C) A key used for decryption that is different from the key used for encryption
D) A key used for encryption that is different from the key used for decryption

3. What is host intrusion detection (HID)?

A) A system that scans files and folders for viruses
B) A system that monitors and detects potential security threats on a single computer or server
C) A system that prevents malware from infecting a network
D) A system that detects malicious traffic on a network

4. Which of the following statements are valid wireshark capture filters?
(Choose TWO correct answers.)

A) tcp portrange 10000-15000
B) portrange 10000/tcp-15000/tcp
C) port range 10000:tcp-15000:tcp
D) port-range tcp 10000-15000
E) portrange 10000-15000 and tcp

5. Which of the following methods can be used to deactivate a rule in Snort?
(Choose TWO correct answers.)

A) By placing a pass rule in local.rules and restarting Snort.
B) By adding a pass rule to /etc/snort/rules.deactivated and waiting for Snort to reload its rules files automatically.
C) By placing a # in front of the rule and restarting Snort.
D) By deleting the rule and waiting for Snort to reload its rules files automatically.

Solutions: