VA-003 Explain Vault architecture Practice Question
A large enterprise runs Vault in a high-availability cluster with integrated storage (Raft). They notice that read requests are not being evenly distributed across nodes, causing some nodes to have high load. They want to offload read operations to standby nodes. What feature should they enable to achieve this?
⚠ Common exam trap
HashiCorp often tests the misconception that a standard load balancer or adding more Raft nodes can solve read distribution issues, but the correct solution is the Vault Enterprise-specific performance standby nodes feature, which is designed exactly for this purpose.
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
✓
Enable performance standby nodes
Performance standby nodes are a Vault Enterprise feature designed to handle read requests without participating in the Raft consensus write quorum. By enabling this, read operations are offloaded to standby nodes, distributing the load evenly and reducing the burden on the active cluster nodes. This directly addresses the uneven read distribution and high load on specific nodes.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Enable performance standby nodes
Why this is correct
Performance standby nodes serve read-only requests forwarded from the active node, distributing read load across the cluster. This offloads read operations to standbys, evening distribution and reducing pressure on heavily loaded nodes in the Raft HA cluster.
- ✗
Configure a load balancer with a round-robin algorithm
Why it's wrong here
A round-robin load balancer distributes connections, not read operations; standby nodes in a Raft cluster forward or redirect reads to the active node, so load stays concentrated. It is tempting because load balancers front Vault clusters, but it would be correct for spreading API traffic, not offloading reads.
- ✗
Enable read replicas on standby nodes
Why it's wrong here
Read replicas are a separate Vault Enterprise cluster type, not a mode enabled on existing standby nodes within one Raft cluster; standbys cannot serve reads directly. It is tempting because replicas genuinely serve read traffic, but it would be correct when deploying a dedicated secondary cluster for read scaling.
- ✗
Increase the number of Raft nodes to distribute reads
Why it's wrong here
Adding Raft nodes increases quorum size and write fault tolerance, but every node still forwards reads to the active node, so read load is unchanged. It is tempting because more nodes suggest more capacity, but it would be correct when the goal is surviving additional node failures.
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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.