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350-401 Practice Question: Drag and drop the steps of DHCP snooping and…
Drag and drop the steps of DHCP snooping and dynamic ARP inspection flow into the correct order, from first to last.
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
✓
Switch enables DHCP snooping globally and per VLAN
DHCP snooping first builds a binding table by monitoring DHCP messages. The switch validates DHCP server messages on trusted ports and discards rogue offers. For DAI, the switch intercepts ARP packets and checks the sender MAC and IP against the DHCP snooping binding table. If the ARP packet matches, it is forwarded; otherwise, it is dropped.
Visual reference
Quick reference
Access Control Model Comparison
| Model | Acronym | Who Controls Access? | Best For |
|---|---|---|---|
| Discretionary Access Control | DAC | Resource owner | Small teams, file shares |
| Mandatory Access Control | MAC | System / security labels | Classified govt / military |
| Role-Based Access Control | RBAC | Administrator (via roles) | Enterprise environments |
| Attribute-Based Access Control | ABAC | Policy engine (user + resource attributes) | Fine-grained, dynamic policies |
| Rule-Based Access Control | RuBAC | System rules / ACLs | Firewall rules, network ACLs |
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IP Services: DHCP, NAT, and DNS
Key term
DHCP snooping
DHCP snooping is a network security feature that filters untrusted DHCP messages to prevent rogue DHCP servers from giving out false IP addresses.
Key term
Dynamic ARP Inspection
Dynamic ARP Inspection is a security feature that validates ARP packets on a network to prevent man-in-the-middle attacks by ensuring that only legitimate ARP messages are forwarded.
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Same concept, more angles
1 more way this is tested on 350-401
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Drag and drop the steps of DHCP snooping and dynamic ARP inspection flow into the correct order, from first to last.
medium- ✓ A.Switch enables DHCP snooping on trusted ports
- ✓ B.Switch intercepts DHCPACK from server, extracts lease info
- ✓ C.Switch populates DHCP snooping binding table
- ✓ D.Switch receives ARP packet on untrusted port
- ✓ E.Switch validates ARP against binding table, drops if mismatch
Why A: DHCP snooping builds a binding table used by DAI. The switch validates DHCP messages, creates bindings, then intercepts ARP packets and compares them against the binding table to prevent spoofing.
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-401 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 350-401 exam.