CertNexus Exam CFR-310 Topic 4 Question 1 Discussion

Actual exam question for CertNexus's CFR-310 exam

Question #: 1
Topic #: 4

A network security analyst has noticed a flood of Simple Mail Transfer Protocol (SMTP) traffic to internal clients. SMTP traffic should only be allowed to email servers. Which of the following commands would stop this attack? (Choose two.)

Aiptables -A INPUT -p tcp --dport 25 -d x.x.x.x -j ACCEPT

Biptables -A INPUT -p tcp --sport 25 -d x.x.x.x -j ACCEPT

Ciptables -A INPUT -p tcp --dport 25 -j DROP

Diptables -A INPUT -p tcp --destination-port 21 -j DROP

Eiptables -A FORWARD -p tcp --dport 6881:6889 -j DROP

Show Suggested Answer

Suggested Answer: A, C

by Deeanna at May 05, 2022, 06:43 PM

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