VA-003 Explain Vault architecture Practice Question
Which TWO of the following are components of Vault's architecture? (Choose two.)
⚠ Common exam trap
HashiCorp often tests the distinction between core architectural components (Barrier, Seal) and auxiliary tools (Vault Agent, Consul Template) or unrelated technologies (Senlin), expecting candidates to recognize that only the Barrier and Seal are integral to Vault's internal data protection and unsealing workflow.
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
✓
Barrier
The Barrier and Seal are fundamental components of Vault's architecture. The Barrier is an encryption layer that protects all data written to storage by encrypting it with a master key before it is persisted. The Seal is the mechanism that wraps the master key, requiring an unseal process (using Shamir's Secret Sharing or an external key service like AWS KMS) to decrypt the master key and make Vault operational.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Senlin
Why it's wrong here
Senlin is not related to Vault.
- ✗
Consul Template
Why it's wrong here
Consul Template is a separate tool for rendering templates.
- ✗
Vault Agent
Why it's wrong here
Vault Agent is a client-side helper, not a core architecture component.
- ✓
Barrier
Why this is correct
The barrier encrypts all data written to storage.
- ✓
Seal
Why this is correct
The seal manages encryption keys and unseal.
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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.