SSCP Network and Communications Security Practice Question
Which of the following is a common defense against ARP spoofing attacks on a local area network?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Dynamic ARP Inspection
Dynamic ARP Inspection (DAI) validates ARP packets against a trusted database (DHCP snooping binding), preventing spoofed ARP messages.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
DHCP snooping
Why it's wrong here
DHCP snooping filters DHCP messages, not ARP directly, though often used with DAI.
- ✗
Port security
Why it's wrong here
Port security limits MAC addresses per port but does not inspect ARP.
- ✗
MAC filtering
Why it's wrong here
MAC filtering is an access control, not ARP validation.
- ✓
Dynamic ARP Inspection
Why this is correct
DAI validates ARP packets to prevent spoofing.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SSCP practice question is part of Courseiva's free ISC2 certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SSCP exam.