VA-003 Compare and configure secrets engines Practice Question
Which TWO of the following are valid use cases for the Transit secrets engine? (Select exactly 2.)
⚠ Common exam trap
HashiCorp often tests the distinction between 'performing cryptographic operations' (Transit) and 'storing secrets or keys' (KV), so the trap here is that candidates confuse the Transit engine's ability to store keys internally with the use case of storing keys for external retrieval.
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
✓
Signing and verifying data
The Transit secrets engine is designed to perform cryptographic operations on data without exposing the encryption keys to the client. Option A is correct because the engine supports signing and verifying data using HMAC or asymmetric keys, allowing clients to verify integrity and authenticity without handling the private key. Option B is correct because the engine can encrypt data in transit (e.g., via API calls) while the encryption key remains securely stored within Vault, never leaving the server.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Signing and verifying data
Why this is correct
Transit supports signing and verification operations.
- ✓
Encrypting data in transit without exposing the encryption key
Why this is correct
Transit allows encryption without exposing the key.
- ✗
Storing encryption keys
Why it's wrong here
Transit manages keys but does not allow direct export of keys (unless exportable).
- ✗
Storing encrypted data at rest
Why it's wrong here
Transit does not store data; it only provides encryption operations.
- ✗
Managing X.509 certificates
Why it's wrong here
PKI engine manages certificates, not Transit.
Quick reference
Symmetric Encryption Algorithm Comparison
| Algorithm | Key Size | Block Size | Status | Notes |
|---|---|---|---|---|
| AES-128 | 128-bit | 128-bit | Current standard | NIST approved; WPA3, TLS |
| AES-256 | 256-bit | 128-bit | Current standard | Preferred for sensitive / govt data |
| 3DES | 112-bit effective | 64-bit | Deprecated (2023) | Replaced by AES |
| DES | 56-bit | 64-bit | Broken | Cracked in < 24 h; never deploy |
| ChaCha20 | 256-bit | Stream cipher | Current | TLS 1.3, WireGuard |
Go deeper
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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.