VA-003 Explain Vault architecture Practice Question
A company is deploying Vault in a high-availability configuration across three data centers. They need to ensure that if the active Vault node fails, another node can take over without manual intervention. Which Vault feature should they configure?
⚠ Common exam trap
HashiCorp often tests the distinction between automatic leader election (Raft HA) and manual failover mechanisms (DR replication), leading candidates to mistakenly choose DR replication for intra-cluster high availability.
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
✓
Configure Vault with a highly available storage backend such as Raft and enable automatic leader election.
Vault's integrated Raft storage backend supports automatic leader election via the Raft consensus protocol. When the active node fails, the remaining nodes automatically hold an election to select a new leader, ensuring high availability without manual intervention. This is the native HA mechanism for Vault when using Raft as the storage backend.
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 Vault with a highly available storage backend such as Raft and enable automatic leader election.
Why this is correct
Vault HA with Raft automatically elects a new leader if the active node fails.
- ✗
Enable performance standby nodes.
Why it's wrong here
Performance standby nodes only handle read requests, not writes, and require manual failover for writes.
- ✗
Use a load balancer with health checks to redirect traffic.
Why it's wrong here
A load balancer alone cannot promote a standby node to active; Vault must handle leadership internally.
- ✗
Set up Disaster Recovery (DR) replication between data centers.
Why it's wrong here
DR replication requires manual promotion to make a secondary cluster active.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This VA-003 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 VA-003 exam.