- A
It maps the spoke's tunnel IP to its own physical interface IP for local routing.
Why wrong: The command maps a remote tunnel IP (the hub's) to a physical IP, not the spoke's own addresses.
- B
It provides a static mapping from the hub's tunnel IP (10.0.0.1) to the hub's physical IP (192.168.1.1) so the spoke can reach the hub.
This static NHRP mapping tells the spoke how to reach the hub's tunnel interface via the hub's physical NBMA address.
- C
It enables multicast mapping for dynamic spoke discovery.
Why wrong: Multicast mapping uses 'ip nhrp map multicast dynamic' or static multicast commands, not this syntax.
- D
It configures the spoke to register with the hub using the specified physical address.
Why wrong: Registration is done via NHRP automatically; the map command only provides the hub's address for initial contact.
Quick Answer
The answer is that the `ip nhrp map 10.0.0.1 192.168.1.1` command provides a static mapping from the hub’s tunnel IP (10.0.0.1) to the hub’s physical NBMA address (192.168.1.1), enabling the spoke to reach the hub for NHRP registration and communication. This is necessary because, in FlexVPN, the spoke must know the hub’s real-world interface IP to encapsulate packets over the physical network; without this static map, the spoke cannot initiate the NHRP registration process or send traffic to the hub’s tunnel interface. On the ENCOR 350-401 exam, this concept tests your understanding of how NHRP resolves NBMA addresses in a hub-and-spoke topology—a common trap is confusing this command with `ip nhrp nhs`, which only designates the hub’s tunnel IP as a next-hop server, not its physical address. A reliable memory tip is to think of the command as “tunnel-to-physical” mapping: the first IP is the logical tunnel destination, and the second is the real interface you need to reach it.
350-401 VPN Technologies Practice Question
This 350-401 practice question tests your understanding of vpn technologies. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Consider the following configuration for a FlexVPN spoke router:
interface Tunnel0 ip address 10.0.0.2 255.255.255.0
tunnel source GigabitEthernet0/0/0 tunnel mode gre ip tunnel protection ipsec profile FLEXPROF
ip nhrp network-id 100 ip nhrp nhs 10.0.0.1 ip nhrp map 10.0.0.1 192.168.1.1
What is the purpose of the 'ip nhrp map 10.0.0.1 192.168.1.1' command?
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 provides a static mapping from the hub's tunnel IP (10.0.0.1) to the hub's physical IP (192.168.1.1) so the spoke can reach the hub.
In FlexVPN (or DMVPN), the 'ip nhrp map' command statically maps a tunnel IP address (10.0.0.1) to a physical NBMA address (192.168.1.1). This is used by the spoke to know the hub's physical address for NHRP registration and communication.
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.
- ✗
It maps the spoke's tunnel IP to its own physical interface IP for local routing.
Why it's wrong here
The command maps a remote tunnel IP (the hub's) to a physical IP, not the spoke's own addresses.
- ✓
It provides a static mapping from the hub's tunnel IP (10.0.0.1) to the hub's physical IP (192.168.1.1) so the spoke can reach the hub.
Why this is correct
This static NHRP mapping tells the spoke how to reach the hub's tunnel interface via the hub's physical NBMA address.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
It enables multicast mapping for dynamic spoke discovery.
Why it's wrong here
Multicast mapping uses 'ip nhrp map multicast dynamic' or static multicast commands, not this syntax.
- ✗
It configures the spoke to register with the hub using the specified physical address.
Why it's wrong here
Registration is done via NHRP automatically; the map command only provides the hub's address for initial contact.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Command / output trap
The command maps a remote tunnel IP (the hub's) to a physical IP, not the spoke's own addresses.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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 350-401 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.
Identify which 350-401 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Questions learners often ask
What does this 350-401 question test?
VPN Technologies — This question tests VPN Technologies — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: It provides a static mapping from the hub's tunnel IP (10.0.0.1) to the hub's physical IP (192.168.1.1) so the spoke can reach the hub. — In FlexVPN (or DMVPN), the 'ip nhrp map' command statically maps a tunnel IP address (10.0.0.1) to a physical NBMA address (192.168.1.1). This is used by the spoke to know the hub's physical address for NHRP registration and communication.
What should I do if I get this 350-401 question wrong?
Identify which 350-401 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jun 18, 2026
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.
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