- A
The route must have the shortest AS_PATH length.
Why wrong: AS_PATH length is a tie-breaker, not a prerequisite for best path selection.
- B
The next hop must be reachable via the routing table.
If the next hop is unreachable, the route is not considered for best path.
- C
Synchronization must be disabled or the route must be present in the IGP.
Synchronization requires the route to be in the IGP before it is considered best.
- D
The route must have the lowest MED value among all paths.
Why wrong: MED is only compared when paths are from the same neighboring AS.
- E
The route must have the lowest IGP metric to the next hop.
Why wrong: IGP metric is the last tie-breaker, not a condition for best path.
Question 276 of 2,152
300-410 BGP Next-Hop Reachability Practice Question
This 300-410 practice question tests your understanding of bgp troubleshooting. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. A key principle to apply: bGP Next-Hop Reachability. 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 TWO conditions must be met for a BGP route to be considered the best path and installed in the routing table? (Choose TWO.)
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
✓
The next hop must be reachable via the routing table.
For a BGP route to be installed in the routing table, the next hop must be reachable via the routing table (option B), and if synchronization is enabled, the route must be present in the IGP; if synchronization is disabled, this condition is not required (option C). Options A, D, and E are incorrect because they describe attributes compared during the BGP best path selection process, which occurs after the prerequisites (reachable next hop and synchronization check) are satisfied. They are not prerequisite conditions for installation.
Key principle: BGP Next-Hop Reachability
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The route must have the shortest AS_PATH length.
Why it's wrong here
AS_PATH length is a tie-breaker, not a prerequisite for best path selection.
- ✓
The next hop must be reachable via the routing table.
Why this is correct
If the next hop is unreachable, the route is not considered for best path.
Related concept
BGP Next-Hop Reachability
- ✓
Synchronization must be disabled or the route must be present in the IGP.
Why this is correct
Synchronization requires the route to be in the IGP before it is considered best.
Related concept
BGP Next-Hop Reachability
- ✗
The route must have the lowest MED value among all paths.
Why it's wrong here
MED is only compared when paths are from the same neighboring AS.
- ✗
The route must have the lowest IGP metric to the next hop.
Why it's wrong here
IGP metric is the last tie-breaker, not a condition for best path.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Remember that reachable next hop and synchronization are prerequisites for BGP route installation, not path selection attributes.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- BGP Next-Hop Reachability
- BGP Synchronization
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
BGP Next-Hop Reachability
Real-world example
How this comes up in practice
A practitioner preparing for the 300-410 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. BGP Next-Hop Reachability 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.
Review bGP Next-Hop Reachability, then practise related 300-410 questions on the same topic to reinforce the concept.
- →
BGP Troubleshooting — study guide chapter
Learn the concepts, then practise the questions
- →
BGP Troubleshooting practice questions
Targeted practice on this topic area only
- →
All 300-410 questions
2,152 questions across all exam domains
- →
Cisco CCNP ENARSI 300-410 study guide
Full concept coverage aligned to exam objectives
- →
300-410 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related 300-410 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Layer 3 Technologies practice questions
Practise 300-410 questions linked to Layer 3 Technologies.
EIGRP Troubleshooting practice questions
Practise 300-410 questions linked to EIGRP Troubleshooting.
OSPF Troubleshooting (v2/v3) practice questions
Practise 300-410 questions linked to OSPF Troubleshooting (v2/v3).
BGP Troubleshooting practice questions
Practise 300-410 questions linked to BGP Troubleshooting.
Route Redistribution practice questions
Practise 300-410 questions linked to Route Redistribution.
Policy-Based Routing (PBR) practice questions
Practise 300-410 questions linked to Policy-Based Routing (PBR).
VRF-Lite practice questions
Practise 300-410 questions linked to VRF-Lite.
Route Maps and Route Filtering practice questions
Practise 300-410 questions linked to Route Maps and Route Filtering.
Administrative Distance practice questions
Practise 300-410 questions linked to Administrative Distance.
Route Summarization practice questions
Practise 300-410 questions linked to Route Summarization.
Bidirectional Forwarding Detection (BFD) practice questions
Practise 300-410 questions linked to Bidirectional Forwarding Detection (BFD).
VPN Technologies practice questions
Practise 300-410 questions linked to VPN Technologies.
Practice this exam
Start a free 300-410 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 300-410 question test?
BGP Troubleshooting — This question tests BGP Troubleshooting — BGP Next-Hop Reachability.
What is the correct answer to this question?
The correct answer is: The next hop must be reachable via the routing table. — For a BGP route to be installed in the routing table, the next hop must be reachable via the routing table (option B), and if synchronization is enabled, the route must be present in the IGP; if synchronization is disabled, this condition is not required (option C). Options A, D, and E are incorrect because they describe attributes compared during the BGP best path selection process, which occurs after the prerequisites (reachable next hop and synchronization check) are satisfied. They are not prerequisite conditions for installation.
What should I do if I get this 300-410 question wrong?
Review bGP Next-Hop Reachability, then practise related 300-410 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
BGP Next-Hop Reachability
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 →
Keep practising
More 300-410 practice questions
- Drag and drop the steps to negotiate an IKEv2 IPsec site-to-site tunnel into the correct order, from first to last.
- Drag and drop the steps to troubleshoot an IPsec site-to-site VPN adjacency failure into the correct order, from first t…
- Drag and drop the steps to verify and validate the operational state of an IPsec site-to-site VPN into the correct order…
- Consider the following configuration snippet: ip cef ! interface GigabitEthernet0/0 ip address 10.0.0.1 255.255.255.25…
- A router is configured with 'logging host 10.1.1.100' and 'logging trap informational'. The engineer notices that syslog…
- Drag and drop the steps to configure a GRE tunnel for IPv6 over IPv4 into the correct order, from first to last.
Last reviewed: Jun 18, 2026
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.
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.