VA-003 Explain Vault architecture Practice Question
A company requires that Vault data be continuously replicated from a primary data center to a secondary data center for disaster recovery. The secondary data center must be able to become writable in the event of a primary failure. Which Vault feature should they use?
⚠ Common exam trap
HashiCorp often tests the distinction between Performance Replication and Disaster Recovery Replication, where candidates mistakenly choose Performance Replication because they confuse read scaling with disaster recovery failover capabilities.
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
✓
Disaster Recovery Replication
Disaster Recovery (DR) Replication is the correct choice because it provides asynchronous replication of Vault data (including configuration, policies, and secrets) from a primary cluster to a secondary cluster. In the event of a primary failure, the secondary cluster can be promoted to become writable, ensuring business continuity. This feature is specifically designed for disaster recovery scenarios where the secondary site must be able to take over write operations.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Performance Replication
Why it's wrong here
Performance Replication keeps secondaries read-only and forwards writes to the primary; it cannot be promoted to a writable primary. It tempts because it does replicate data continuously, but that is for read scaling across data centres, not disaster recovery takeover.
- ✗
Consul as storage backend
Why it's wrong here
Consul as storage backend provides HA within a single cluster, not cross-data-centre replication with promotion. It tempts because Consul spans data centres and stores Vault data, but it does not deliver Vault's DR replication or the ability to promote a secondary.
- ✗
Performance Standby
Why it's wrong here
Performance Standby nodes serve reads within one cluster while forwarding writes to the active node; they are not a cross-site replication or failover mechanism. It tempts because it improves read throughput, but it does not replicate data to a secondary data centre or allow promotion.
- ✓
Disaster Recovery Replication
Why this is correct
Disaster Recovery Replication continuously ships data to a secondary that can be promoted to a writable primary, satisfying the stem's requirement for failover writability. Performance Replication secondaries remain read-only for most operations, so they cannot meet that constraint.
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JA
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.