Question 1,620 of 2,015
Wireless InfrastructuremediumDrag & DropObjective-mapped

Quick Answer

The correct answer is that APs and clients re-establish CAPWAP tunnels to the new active WLC. This is the final step because in WLC HA SSO failover, the standby first detects the active failure through a lost heartbeat and link state change, then assumes the active role by reinitializing interfaces and applying the synchronized configuration, and finally sends gratuitous ARP to update the network topology—only after all this can the APs and clients rebuild their CAPWAP tunnels to the new primary. On the ENCOR 350-401 exam, this drag-and-drop sequence tests your understanding of the precise order of stateful switchover, where a common trap is placing the CAPWAP re-establishment too early, before the new active WLC has fully taken over Layer 2 and Layer 3 duties. A useful memory tip is to think of the acronym DAG: Detect, Assume, Gratuitous ARP, then finally CAPWAP reconnection.

350-401 Wireless Infrastructure Practice Question

This 350-401 practice question tests your understanding of wireless infrastructure. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.

Drag and drop the steps of WLC high availability SSO failover steps into the correct order, from first to last.

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

  • Clue: "first"

    Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.

Question 1mediumdrag order
Full question →

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

Active WLC fails (power or link loss)

In WLC SSO HA, the active WLC fails, triggering the standby to take over. The standby detects the failure via loss of heartbeat and link state. It then assumes the active role, reinitializing interfaces and applying the synchronized configuration. The standby (now active) sends gratuitous ARP to update the network. Finally, client sessions and CAPWAP tunnels are re-established with the new active WLC.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

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.

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?

Wireless Infrastructure — This question tests Wireless Infrastructure — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Active WLC fails (power or link loss) — In WLC SSO HA, the active WLC fails, triggering the standby to take over. The standby detects the failure via loss of heartbeat and link state. It then assumes the active role, reinitializing interfaces and applying the synchronized configuration. The standby (now active) sends gratuitous ARP to update the network. Finally, client sessions and CAPWAP tunnels are re-established with the new active WLC.

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.

Are there clue words in this question I should notice?

Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Same concept, more angles

1 more ways this is tested on 350-401

These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.

Variation 1. Drag and drop the steps of WLC high availability SSO failover steps into the correct order, from first to last.

medium
  • A.Active WLC experiences a failure
  • B.Standby detects loss of heartbeat
  • C.Standby transitions to active role
  • D.New active WLC initializes interfaces
  • E.Clients reassociate to new active WLC

Why A: In HA SSO, the active WLC fails, the standby detects the failure via RP link, takes over the active role, reinitializes interfaces, and then clients reassociate to the new active WLC.

Last reviewed: Jun 18, 2026

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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.