- A
VNI
Why wrong: VNI is the network identifier, not the endpoint.
- B
VXLAN tunnel
Why wrong: Tunnel is the logical path, not the endpoint.
- C
VXLAN gateway
Why wrong: Gateway connects VXLAN to non-VXLAN but does not encapsulate.
- D
VTEP
VTEP performs VXLAN encapsulation/decapsulation.
Question 452 of 1,000
350-601 Network Practice Question
This 350-601 practice question tests your understanding of network. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which VXLAN component is responsible for encapsulating and decapsulating Ethernet frames into UDP packets?
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
✓
VTEP
The VTEP (VXLAN Tunnel Endpoint) is the device that performs encapsulation and decapsulation of Ethernet frames into UDP packets. It is the edge component in a VXLAN network that maps tenant traffic to VXLAN segments and handles the actual tunneling by adding the VXLAN header (including VNI) and outer UDP/IP headers.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
VNI
Why it's wrong here
VNI is the network identifier, not the endpoint.
- ✗
VXLAN tunnel
Why it's wrong here
Tunnel is the logical path, not the endpoint.
- ✗
VXLAN gateway
Why it's wrong here
Gateway connects VXLAN to non-VXLAN but does not encapsulate.
- ✓
VTEP
Why this is correct
VTEP performs VXLAN encapsulation/decapsulation.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between the VTEP (the device that does encapsulation) and the VXLAN tunnel (the logical path), so candidates mistakenly pick 'VXLAN tunnel' because they associate 'tunnel' with encapsulation, but the tunnel is the path, not the endpoint.
Detailed technical explanation
How to think about this question
Under the hood, the VTEP adds a 50-byte overhead: 8-byte VXLAN header (with VNI), 8-byte UDP header, 20-byte IP header, and 14-byte outer Ethernet header. In Cisco ACI, the VTEP is implemented in the leaf switches (e.g., Nexus 9000 series) and uses the underlay IP network (often IS-IS or OSPF) to reach remote VTEPs. A real-world scenario is a multi-tenant data center where each VTEP maintains a forwarding table mapping inner MAC addresses to remote VTEP IPs, enabling Layer 2 extension across Layer 3 boundaries.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 350-601 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this 350-601 question test?
Network — This question tests Network — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: VTEP — The VTEP (VXLAN Tunnel Endpoint) is the device that performs encapsulation and decapsulation of Ethernet frames into UDP packets. It is the edge component in a VXLAN network that maps tenant traffic to VXLAN segments and handles the actual tunneling by adding the VXLAN header (including VNI) and outer UDP/IP headers.
What should I do if I get this 350-601 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jul 4, 2026
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.
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