mediumMultiple ChoiceObjective-mapped
300-410 Practice Question: Runs the following command on Router R1: R1# show…
A network engineer runs the following command on Router R1:
R1# show dmvpn
Legend: Attrb -> S: Static, D: Dynamic, I: Incomplete N: NATed, L: Local, X: No Socket #Ent -> Number of NHRP entries with same NBMA peer NHS Status: E => Expecting Replies, R => Responding, W => Waiting UpDn Time -> Up or Down Time for a Tunnel ==========================================================================
Interface: Tunnel0, IPv4 NHRP Details
Type:Hub, NHRP Peers:2,
# Ent Peer NBMA Addr Peer Tunnel Addr State UpDn Tm Attrb
----- --------------- ---------------- ----- -------- ----- 1 10.1.1.2 172.16.0.2 UP 00:02:15 D 1 10.1.1.3 172.16.0.3 UP 00:01:45 D
Based on this output, which statement is correct?
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
✓
Router R1 is a hub with two dynamically registered spokes.
The show dmvpn command displays NHRP peers. The output shows two dynamic peers (D) with their NBMA and tunnel addresses. The hub has two spokes registered, both in UP state. The correct answer identifies the role and peer count.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Router R1 is a spoke with two hub peers.
Why it's wrong here
The Type:Hub indicates R1 is a hub, not a spoke.
- ✓
Router R1 is a hub with two dynamically registered spokes.
Why this is correct
Type:Hub and two dynamic (D) entries confirm this.
- ✗
The NHRP peers are static and not dynamic.
Why it's wrong here
Attrb shows D for dynamic, not S for static.
- ✗
One spoke is experiencing a registration failure.
Why it's wrong here
Both peers are UP, no failure indicated.
Go deeper
Related to this question
Learn chapter
Introduction to ENARSI Exam and Network Fundamentals
Key term
DMVPN Phase 2
DMVPN Phase 2 is an advanced Cisco routing technology that allows spoke routers to communicate directly with one another without sending traffic through a central hub, using dynamic routing protocols and multipoint GRE tunnels.
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Same concept, more angles
1 more way this is tested on 300-410
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Variation 1. A network engineer runs the following command on Router R1: R1# show dmvpn detail Legend: Attrb -> S: Static, D: Dynamic, I: Incomplete N: NATed, L: Local, X: No Socket #Ent -> Number of NHRP entries with same NBMA peer NHS Status: E => Expecting Replies, R => Responding, W => Waiting UpDn Time -> Up or Down Time for a Tunnel ========================================================================== Interface: Tunnel0, IPv4 NHRP Details Type:Spoke, NHRP Peers:1, # Ent Peer NBMA Addr Peer Tunnel Addr State UpDn Tm Attrb ----- --------------- ---------------- ----- -------- ----- 1 10.1.1.1 172.16.0.1 UP 00:10:00 S Based on this output, what is the problem?
medium- ✓ A.The spoke has a static NHRP mapping for the hub, which is correct for phase 1 DMVPN.
- B.The spoke has dynamically learned the hub.
- C.The hub is not reachable.
- D.The spoke is configured as a hub.
Why A: The output shows a spoke router with a single NHRP peer (the hub) marked as static (S). In DMVPN phase 1, spokes only have static mappings for the hub and do not form dynamic spoke-to-spoke tunnels. Therefore, this output is normal and indicates correct configuration for phase 1 DMVPN. There is no problem.
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.