350-601 Security Practice Question
Which Nexus security feature validates the source IP address of packets on a per-port basis and drops packets with invalid source IPs?
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
✓
IP Source Guard
IP Source Guard uses DHCP snooping binding to validate source IP.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Port Security
Why it's wrong here
Port security controls MAC addresses.
- ✗
ACL
Why it's wrong here
ACL can filter but not dynamically validate.
- ✗
Dynamic ARP Inspection
Why it's wrong here
DAI validates ARP packets.
- ✓
IP Source Guard
Why this is correct
IP Source Guard prevents IP spoofing.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-601 practice question is part of Courseiva's free Cisco 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 350-601 exam.