- A
It allows the BGP session to be established even if the neighbor is not directly connected, with a maximum of 2 hops.
Correct. EBGP multihop with value 2 allows the neighbor to be up to 2 hops away (TTL=2).
- B
It sets the BGP session to use two TCP connections for redundancy.
Why wrong: Incorrect. EBGP multihop does not affect TCP connections; it only adjusts the TTL.
- C
It enables BGP to use two different paths to reach the neighbor.
Why wrong: Incorrect. EBGP multihop does not enable multipath; it just allows non-directly connected peers.
- D
It is required because the neighbor is configured with a loopback interface as the update source.
Why wrong: Incorrect. While using a loopback as update source often requires multihop, the command itself is not mandatory; it is needed only if the peer is not directly connected.
Quick Answer
The answer is that the ebgp-multihop 2 command allows the BGP session to be established between non-directly connected peers, with a maximum of 2 hops. This is necessary because, by default, eBGP requires neighbors to be directly connected on the same subnet, as the TTL of BGP packets is set to 1. The ebgp-multihop command overrides this by setting a higher TTL value—here, a TTL of 2 permits one intermediate router between the peers, enabling the use of loopback interfaces for session stability. On the ENCOR 350-401 exam, this question tests your understanding of BGP peering requirements and the distinction between iBGP and eBGP neighbor rules. A common trap is confusing the hop count with the number of routers; remember that the TTL value equals the number of hops plus one, so ebgp-multihop 2 means one router can sit between the peers. Memory tip: think “multihop = multiple hops allowed, TTL = hops + 1.”
350-401 REST APIs and Data Models Practice Question
This 350-401 practice question tests your understanding of rest apis and data models. 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.
Given the following BGP configuration on a Cisco IOS-XE device:
router bgp 65001
bgp router-id 1.1.1.1
neighbor 10.0.0.2 remote-as 65002 neighbor 10.0.0.2 update-source Loopback0 neighbor 10.0.0.2 ebgp-multihop 2
!
interface Loopback0 ip address 1.1.1.1 255.255.255.255
!
interface GigabitEthernet0/0 ip address 10.0.0.1 255.255.255.252
What is the purpose of the 'ebgp-multihop 2' 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 allows the BGP session to be established even if the neighbor is not directly connected, with a maximum of 2 hops.
EBGP multihop allows the BGP session to be established between non-directly connected peers. The number specifies the maximum TTL for the BGP packets. Here, TTL=2 allows one intermediate hop.
Key principle: OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
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 allows the BGP session to be established even if the neighbor is not directly connected, with a maximum of 2 hops.
- ✗
It sets the BGP session to use two TCP connections for redundancy.
- ✗
It enables BGP to use two different paths to reach the neighbor.
Why it's wrong here
Incorrect. EBGP multihop does not enable multipath; it just allows non-directly connected peers.
- ✗
It is required because the neighbor is configured with a loopback interface as the update source.
Why it's wrong here
Incorrect. While using a loopback as update source often requires multihop, the command itself is not mandatory; it is needed only if the peer is not directly connected.
Common exam traps
Common exam trap: OSPF can fail even when IP connectivity looks correct
OSPF neighbour formation depends on matching areas, timers, network type, authentication and passive-interface behaviour. Do not choose an answer only because the devices can ping.
Trap categories for this question
Command / output trap
Incorrect. While using a loopback as update source often requires multihop, the command itself is not mandatory; it is needed only if the peer is not directly connected.
Detailed technical explanation
How to think about this question
OSPF questions usually test the details that control adjacency and route selection. Read the neighbour state, area, router ID and interface configuration before deciding what is wrong.
KKey Concepts to Remember
- OSPF neighbours must agree on key parameters.
- Router ID selection can affect neighbour relationships and LSDB output.
- OSPF cost influences the preferred path.
- A route can appear in OSPF information but not become the installed route.
TExam Day Tips
- Check area mismatch first when OSPF adjacency fails.
- Review passive interfaces when a network is advertised but no neighbour forms.
- Use show ip ospf neighbor and show ip route clues carefully.
Key takeaway
OSPF neighbour adjacency depends on matching area, hello/dead timers, network type, and authentication — IP reachability alone is not enough.
Real-world example
How this comes up in practice
A network engineer at a university connects two campus buildings via a fibre link. Both routers run OSPF, but no adjacency forms — even though both routers can ping each other. The engineer finds one router is in area 0 and the other in area 1. OSPF adjacency requires matching area numbers, hello/dead timers, and network type. IP reachability alone is not enough.
What to study next
Got this wrong? Here's your next step.
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 350-401 OSPF questions on adjacency and route selection.
- →
REST APIs and Data Models — study guide chapter
Learn the concepts, then practise the questions
- →
REST APIs and Data Models practice questions
Targeted practice on this topic area only
- →
All 350-401 questions
2,015 questions across all exam domains
- →
ENCOR 350-401 study guide
Full concept coverage aligned to exam objectives
- →
350-401 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related 350-401 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Architecture practice questions
Practise 350-401 questions linked to Architecture.
Enterprise Network Design practice questions
Practise 350-401 questions linked to Enterprise Network Design.
SD-Access Architecture practice questions
Practise 350-401 questions linked to SD-Access Architecture.
SD-WAN Architecture practice questions
Practise 350-401 questions linked to SD-WAN Architecture.
QoS Architecture practice questions
Practise 350-401 questions linked to QoS Architecture.
Virtualization practice questions
Practise 350-401 questions linked to Virtualization.
Network Function Virtualization practice questions
Practise 350-401 questions linked to Network Function Virtualization.
Virtual Machines and Hypervisors practice questions
Practise 350-401 questions linked to Virtual Machines and Hypervisors.
VRF and Path Isolation practice questions
Practise 350-401 questions linked to VRF and Path Isolation.
Infrastructure practice questions
Practise 350-401 questions linked to Infrastructure.
OSPF practice questions
Practise 350-401 questions linked to OSPF.
BGP practice questions
Practise 350-401 questions linked to BGP.
Practice this exam
Start a free 350-401 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this 350-401 question test?
REST APIs and Data Models — This question tests REST APIs and Data Models — OSPF neighbours must agree on key parameters..
What is the correct answer to this question?
The correct answer is: It allows the BGP session to be established even if the neighbor is not directly connected, with a maximum of 2 hops. — EBGP multihop allows the BGP session to be established between non-directly connected peers. The number specifies the maximum TTL for the BGP packets. Here, TTL=2 allows one intermediate hop.
What should I do if I get this 350-401 question wrong?
Review OSPF neighbour requirements — matching area type, hello and dead timers, network type, stub flags, and authentication. Study show ip ospf neighbor states (INIT, 2-WAY, FULL). Then practise related 350-401 OSPF questions on adjacency and route selection.
What is the key concept behind this question?
OSPF neighbours must agree on key parameters.
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 →
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.