The answer is implementing the IKEv2 redirect mechanism to direct spokes to the optimal hub. This feature works by allowing a hub router, during initial IKEv2 authentication, to send a redirect notification to a spoke, pointing it toward a more suitable hub based on real-time metrics like latency or load. The spoke then tears down the initial connection and establishes a new IKEv2 tunnel to the recommended hub, enabling dynamic hub selection without manual per-spoke configuration. On the Cisco SCOR 350-701 exam, this concept tests your understanding of FlexVPN scalability and proximity-based tunnel establishment, often appearing in scenario-based questions where spokes must automatically find the closest hub. A common trap is confusing this with static priority or BGP path selection—remember that IKEv2 redirect is an on-demand, hub-driven redirection, not a spoke-initiated decision. Memory tip: think “redirect, not reject”—the hub doesn’t deny the spoke; it politely points it to a better neighbor.
350-701 Network Security Practice Question
This 350-701 practice question tests your understanding of network security. 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.
An engineer is designing a FlexVPN deployment with multiple hub routers and spoke routers. The spokes need to establish tunnels to the closest hub based on latency. Which feature should be configured to achieve dynamic hub selection?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Implement IKEv2 redirect mechanism to direct spokes to the optimal hub.
The IKEv2 redirect mechanism allows a hub to inform a spoke of a more optimal hub based on metrics such as latency or load. The spoke then initiates a new IKEv2 connection to the recommended hub, enabling dynamic hub selection without manual configuration. This is the standard Cisco solution for FlexVPN deployments requiring proximity-based tunnel establishment.
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.
✗
Configure static priority on each hub and use priority-based selection.
Why it's wrong here
Static priority does not adapt to latency changes.
✗
Use Multipoint GRE with mGRE and NHRP for dynamic tunnel selection.
Why it's wrong here
mGRE/NHRP is for DMVPN, not FlexVPN dynamic hub selection.
✗
Use DHCP option 121 to push static routes for hub selection.
Why it's wrong here
DHCP option 121 pushes routes, not adaptive hub selection.
✓
Implement IKEv2 redirect mechanism to direct spokes to the optimal hub.
Why this is correct
IKEv2 redirect allows hubs to redirect spokes to a better hub based on location or latency.
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 IKEv2 redirect mechanism as the only standards-based method for dynamic hub selection in FlexVPN, and the trap here is that candidates confuse DMVPN's mGRE/NHRP (which handles spoke-to-spoke tunnels) with the hub-selection problem, leading them to choose Option B.
Detailed technical explanation
How to think about this question
IKEv2 redirect works by having the initial hub (gateway) send a REDIRECT notification payload during IKE_SA_INIT, containing the IP address of a better hub. The spoke then tears down the initial IKE SA and reconnects to the recommended hub. This mechanism is defined in RFC 5685 and can be combined with gateway load-balancing protocols or latency probes for optimal selection.
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 350-701 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 exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Network Security — This question tests Network Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Implement IKEv2 redirect mechanism to direct spokes to the optimal hub. — The IKEv2 redirect mechanism allows a hub to inform a spoke of a more optimal hub based on metrics such as latency or load. The spoke then initiates a new IKEv2 connection to the recommended hub, enabling dynamic hub selection without manual configuration. This is the standard Cisco solution for FlexVPN deployments requiring proximity-based tunnel establishment.
What should I do if I get this 350-701 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.
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Question Discussion
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