CCNP Virtualization Practice Question
Which TWO of the following are benefits of using network virtualization with VXLAN? (Choose two.)
⚠ Common exam trap
Cisco often tests the misconception that VXLAN eliminates STP or provides native encryption, but VXLAN is an overlay technology that still relies on the underlay network's STP and does not include encryption by default.
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
✓
Enables Layer 2 extension across Layer 3 boundaries.
VXLAN encapsulates Layer 2 frames in UDP packets over IP, allowing Layer 2 segments to be stretched across Layer 3 networks. This enables virtual machine mobility and multi-tenant environments without being constrained by physical network boundaries.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Enables Layer 2 extension across Layer 3 boundaries.
Why this is correct
VXLAN tunnels Layer 2 over Layer 3.
- ✗
Eliminates the need for STP by using a centralized controller.
Why it's wrong here
VXLAN doesn't require STP but does not use a controller.
- ✗
Uses only multicast for control plane learning.
Why it's wrong here
Can use BGP EVPN as well.
- ✓
Supports up to 16 million logical networks.
Why this is correct
VNI provides 16M segments.
- ✗
Provides native encryption for data in transit.
Why it's wrong here
VXLAN does not encrypt; it can be combined with IPsec.
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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.