Which mount option prevents the execution of binaries located on the mounted filesystem?

• A.nosuid
• B.noexec
• C.nodev
• D.ro

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What is the primary purpose of Fail2ban?

• A.To encrypt log files stored on disk.
• B.To monitor log files for repeated failed authentication attempts and dynamically block the offending IP address using firewall rules.
• C.To generate strong random passwords for user accounts.
• D.To replace the need for a firewall entirely.

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In GnuPG's web of trust model, what does it mean when User A signs User B's public key?

• A.User A is granting User B permission to decrypt User A's messages.
• B.User A is vouching that they have verified the authenticity of User B's public key and its association with User B's identity.
• C.User A's private key is now shared with User B.
• D.User B's key is automatically revoked.

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Which of the following terms refer to existing scan techniques with nmap? (Choose TWO correct answers.)

• A.UDP SYN Scan
• B.Xmas Scan
• C.IP Scan
• D.Zero Scan
• E.FIN Scan

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Which of the following information, within a DNSSEC- signed zone, is signed by the key signing key?

• A.The non-DNSSEC records like A, AAAA or MX.
• B.The DS records pointing to the zone.
• C.The RRSIG records of the zone.
• D.The NSEC or NSEC3 records of the zone.
• E.The zone signing key of the zone.

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