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300-410 Practice Question: Which THREE commands can be used to verify IPv6…
Which THREE commands can be used to verify IPv6 First Hop Security (FHS) bindings or operations? (Choose THREE.)
⚠ Common exam trap
Cisco often tests the distinction between control-plane verification commands (like 'show ipv6 neighbors' for ND-based bindings) and data-plane or routing commands (like 'show ipv6 route'), leading candidates to mistakenly select routing or traffic statistics commands that do not reveal FHS-specific binding or operational state.
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
✓
show ipv6 neighbors
The 'show ipv6 neighbors' command displays the IPv6 neighbor cache, which is populated by the Neighbor Discovery Protocol (NDP). In IPv6 FHS, this cache is used to verify bindings between IPv6 addresses and MAC addresses, and it is directly affected by features like RA Guard and ND Inspection, which monitor and filter NDP messages to ensure only legitimate neighbors are learned.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
show ipv6 neighbors
Why this is correct
Correct. This command displays the IPv6 neighbor discovery cache, which includes bindings used by FHS features like ND inspection.
- ✓
show ipv6 dhcp snooping binding
Why this is correct
Correct. This command shows DHCPv6 snooping bindings that are used by IPv6 Source Guard.
- ✗
show ipv6 route
Why it's wrong here
Incorrect. This command shows the IPv6 routing table, not FHS bindings.
- ✓
show ipv6 source-guard
Why this is correct
Correct. This command displays Source Guard policy and statistics, including dropped packets.
- ✗
show ipv6 traffic
Why it's wrong here
Incorrect. This command shows IPv6 traffic statistics, not FHS-specific binding information.
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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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 300-410 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 300-410 exam.