VA-003 Explain Vault architecture Practice Question
A Vault administrator is troubleshooting a Vault cluster using integrated storage (Raft). The cluster has three nodes: node1 (active), node2 (standby), and node3 (standby). The administrator runs `vault operator raft list-peers` and sees that node3 is listed as a non-voter. What is the most likely reason for node3 being a non-voter?
⚠ Common exam trap
The trap here is assuming that standby status prevents Raft voting, when in fact standby nodes are normally voters and non-voter status is a temporary state for new nodes.
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
✓
Node3 was recently added to the cluster and has not yet been promoted to a voter by autopilot.
In Vault's integrated storage, when a new node joins the cluster, it starts as a non-voter. Autopilot is responsible for promoting non-voters to voters once they are healthy and stable. This prevents a new, potentially unstable node from affecting the cluster's quorum. Therefore, node3 is likely a recently added node that has not yet been promoted to voter by autopilot.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Node3 has a different Vault version than the other nodes, so it is automatically demoted to a non-voter.
Why it's wrong here
Vault does not automatically demote a node to non-voter based on version differences. While it is recommended that all nodes run the same Vault version, a version mismatch does not directly change Raft voting status. Autopilot may consider version as part of health checks, but it does not demote a voter to non-voter solely due to version. Other factors like health and stability are more relevant.
- ✗
Node3 is configured as a performance standby, which prevents it from being a voter.
Why it's wrong here
Performance standby is a feature of Vault Enterprise that allows a standby node to serve read requests. It does not affect Raft voting membership. A performance standby can still be a voter in the Raft configuration. The non-voter status is unrelated to performance standby; it is typically due to the node being newly added or unhealthy.
- ✓
Node3 was recently added to the cluster and has not yet been promoted to a voter by autopilot.
Why this is correct
When a new node is added to a Vault Raft cluster, it initially joins as a non-voter. Autopilot then monitors its health and, after a stabilization period, promotes it to a voter if the cluster needs more voters. This gradual promotion ensures that a new node does not disrupt the cluster's quorum if it is unhealthy or slow. The non-voter status is temporary until autopilot promotes it.
- ✗
Node3 is a standby node and therefore cannot be a voter in the Raft configuration.
Why it's wrong here
Standby nodes can be voters in Vault's Raft configuration. In fact, all nodes in a Vault cluster using integrated storage are typically voters, regardless of whether they are active or standby. The active/standby status is related to the Vault cluster leadership, not Raft voting membership. A standby node can and usually does participate in Raft consensus as a voter.
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Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official HashiCorp exam blueprint
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