350-501 Networking Practice Question
Which THREE are valid reasons for using the 'ipv6 unicast-routing' command on a Cisco router?
⚠ Common exam trap
Cisco often tests the distinction between interface-level IPv6 configuration and global IPv6 routing enablement, leading candidates to mistakenly think 'ipv6 unicast-routing' activates IPv6 on all interfaces.
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
✓
It enables global IPv6 routing.
The 'ipv6 unicast-routing' command globally enables IPv6 unicast routing on the router, which is necessary for the router to forward IPv6 packets between interfaces. Without this command, the router will not process or forward IPv6 unicast traffic, even if IPv6 addresses are configured on interfaces.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It enables IPv6 on all interfaces.
Why it's wrong here
Incorrect. Interface IPv6 is enabled separately.
- ✓
It enables global IPv6 routing.
Why this is correct
Correct. This is the primary purpose.
- ✓
It enables IPv6 CEF.
Why this is correct
Correct. CEF is enabled automatically for IPv6 when unicast routing is on.
- ✗
It enables IPv6 multicast routing.
Why it's wrong here
Incorrect. Multicast routing is enabled with separate commands.
- ✓
It allows configuration of IPv6 routing protocols like OSPFv3.
Why this is correct
Correct. Routing protocols require unicast routing to be enabled.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-501 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 350-501 exam.