Consul 1.15 Multi Datacenter Federation Practice Question
You are joining two Consul datacenters via WAN gossip. Which command must be executed on a Consul server in the secondary datacenter to initiate the federation?
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
✓
consul join -wan <remote-server-address>
The consul join command with the -wan flag is the standard mechanism to introduce a node from one datacenter into the WAN gossip pool of another.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
consul members -wan
Why it's wrong here
This command only lists members, it does not join them.
- ✓
consul join -wan <remote-server-address>
Why this is correct
The -wan flag is required for cross-datacenter gossip.
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consul reload -wan
Why it's wrong here
Reloading does not trigger a cluster join operation.
- ✗
consul agent -join-wan
Why it's wrong here
This is not a valid flag for the consul agent command.
About these practice questions
This Consul 1.15 question is part of Courseiva's 194-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official HashiCorp exam blueprint
This Consul 1.15 practice question is part of Courseiva's free HashiCorp 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 Consul 1.15 exam.