Which of the following utilities is used to generate keys for DNSSEC?

• A.delv
• B.rndc
• C.dnssec-dsfromkey
• D.dnssec-keygen

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What is a DoS attack?

• A.An attack that floods a network or server with traffic to make it unavailable
• B.An attack that exploits a vulnerability in software
• C.An attack that aims to steal sensitive information
• D.An attack that targets a specific user or organization

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What is a Certificate Revocation List (CRL)?

• A.A list of X.509 certificates that have been revoked by a particular CA
• B.A list of X.509 certificates that have been issued by a particular CA
• C.A list of private keys that have been compromised
• D.A list of public keys that have been compromised

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Linux Extended File Attributes are organized in namespaces. Which of the following names correspond to existing attribute namespaces?(Choose THREE correct answers.)

• A.owner
• B.system
• C.user
• D.trusted
• E.default

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What is the purpose of performing a TCP SYN scan (nmap -sS) rather than a full TCP connect scan (nmap -sT)?

• A.A SYN scan is slower but more accurate than a connect scan.
• B.A SYN scan does not complete the full TCP three-way handshake, making it faster and less likely to be logged by the target application.
• C.A SYN scan can only be used against UDP services.
• D.There is no difference between the two scan types.

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