This VA-003 practice question tests your understanding of explain encryption as a service. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A DevOps team uses Vault's transit engine to encrypt secrets in CI/CD pipelines. They report that encryption operations are failing with 'permission denied' errors. The team has a policy granting 'create' and 'update' capabilities on the transit key path. What is the most likely missing capability?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
The 'read' capability is missing.
Why wrong: Read is for key metadata, not encrypt.
The 'encrypt' capability is missing.
Encrypt capability is required for encryption operations.
The 'delete' capability is missing.
Why wrong: Delete is not needed for encryption.
The 'list' capability is missing.
Why wrong: List is for enumerating keys.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
The 'encrypt' capability is missing.
The Vault transit engine uses distinct capabilities for key management versus data operations. 'Create' and 'update' allow managing the key itself (e.g., creating or rotating the key), but encryption of data requires the 'encrypt' capability on the transit key path. Without 'encrypt', the API call to encrypt data fails with a 'permission denied' error, even if the key exists and is properly configured.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
The 'read' capability is missing.
Why it's wrong here
Read is for key metadata, not encrypt.
The 'encrypt' capability is missing.
Why this is correct
Encrypt capability is required for encryption operations.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
The 'delete' capability is missing.
Why it's wrong here
Delete is not needed for encryption.
The 'list' capability is missing.
Why it's wrong here
List is for enumerating keys.
Common exam traps
HashiCorp often tests the misconception that 'write' or 'create' capabilities on a key path implicitly grant the ability to encrypt data, when in fact Vault requires explicit 'encrypt' and 'decrypt' capabilities for data-plane operations.
Detailed technical explanation
Under the hood, Vault's policy system uses path-based capabilities that map directly to HTTP verbs: 'encrypt' maps to a POST request on /transit/encrypt/<key_name>. The 'create' and 'update' capabilities correspond to POST/PUT on /transit/keys/<key_name> for key management. A common real-world pitfall is granting overly broad 'write' (which includes create/update) but forgetting the specific 'encrypt' capability, leading to silent failures in CI/CD pipelines where encryption is called programmatically.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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What to study next
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FAQ
Explain encryption as a service — This question tests Explain encryption as a service — Read the scenario before looking for a memorised answer..
The correct answer is: The 'encrypt' capability is missing. — The Vault transit engine uses distinct capabilities for key management versus data operations. 'Create' and 'update' allow managing the key itself (e.g., creating or rotating the key), but encryption of data requires the 'encrypt' capability on the transit key path. Without 'encrypt', the API call to encrypt data fails with a 'permission denied' error, even if the key exists and is properly configured.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
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.
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