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Explain encryption as a service →mediumMultiple ChoiceObjective-mapped

VA-003 Explain encryption as a service Practice Question

This VA-003 practice question tests your understanding of explain encryption as a service. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.

Exhibit

{
  "request_id": "1",
  "data": {
    "allow_plaintext_backup": false,
    "deletion_allowed": false,
    "derived": false,
    "exportable": false,
    "keys": {
      "1": {
        "creation_time": "2023-01-01T00:00:00Z",
        "name": "mykey"
      },
      "2": {
        "creation_time": "2023-06-01T00:00:00Z",
        "name": "mykey"
      }
    },
    "latest_version": 2,
    "min_encryption_version": 0,
    "min_decryption_version": 1,
    "name": "mykey"
  }
}

Refer to the exhibit. A DevOps engineer runs `vault read -format=json transit/keys/mykey` and receives the output shown. A microservice attempts to decrypt data that was encrypted with version 1 of the key. Will the decryption succeed?

Question 1mediummultiple choice
Full question →

Exhibit

{
  "request_id": "1",
  "data": {
    "allow_plaintext_backup": false,
    "deletion_allowed": false,
    "derived": false,
    "exportable": false,
    "keys": {
      "1": {
        "creation_time": "2023-01-01T00:00:00Z",
        "name": "mykey"
      },
      "2": {
        "creation_time": "2023-06-01T00:00:00Z",
        "name": "mykey"
      }
    },
    "latest_version": 2,
    "min_encryption_version": 0,
    "min_decryption_version": 1,
    "name": "mykey"
  }
}

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

✓

Yes, because min_decryption_version is 1, which allows decryption with version 1 and higher.

Option B is correct because the `min_decryption_version` parameter in Vault's transit secrets engine specifies the lowest key version that can be used for decryption. In the exhibit, `min_decryption_version` is set to 1, meaning any version from 1 upward is allowed. Since the data was encrypted with version 1, decryption will succeed. This parameter does not block decryption with version 1; it only prevents decryption with versions lower than the specified value.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • ✗

    Yes, because min_decryption_version does not affect decryption.

    Why it's wrong here

    It does affect decryption; it sets the minimum allowed version.

  • ✓

    Yes, because min_decryption_version is 1, which allows decryption with version 1 and higher.

    Why this is correct

    Correct interpretation of min_decryption_version.

    Related concept

    Read the scenario before looking for a memorised answer.

  • ✗

    No, because min_decryption_version is 1, so only version 2 and higher can decrypt.

    Why it's wrong here

    Version 1 is allowed because it is >= 1.

  • ✗

    No, because the data was encrypted with version 1 and min_decryption_version is 1, so decryption is blocked.

    Why it's wrong here

    Version 1 meets the minimum, so it is allowed.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often misinterpret `min_decryption_version` as a minimum version that is required (i.e., only versions above that number are allowed), when in fact it means the minimum version that is still permitted — so version 1 is allowed if the value is 1.

Detailed technical explanation

How to think about this question

In HashiCorp Vault's transit engine, each key version is a separate encryption key stored in the keyring. The `min_decryption_version` field acts as a policy gate: when a decryption request arrives, Vault checks the version used to encrypt the ciphertext against this threshold. If the ciphertext's version is less than `min_decryption_version`, the request is denied. This is commonly used in key rotation scenarios where older ciphertext must be re-encrypted with newer keys, but setting the value to 1 effectively allows all historical versions to be decrypted.

KKey Concepts to Remember

  • Read the scenario before looking for a memorised answer.
  • Find the constraint that changes the correct option.
  • Eliminate answers that are true in general but not in this case.

TExam Day Tips

  • Watch for words such as best, first, most likely and least administrative effort.
  • Review why wrong options are wrong, not only why the correct option is correct.

Key takeaway

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

A practitioner preparing for the VA-003 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this VA-003 question test?

Explain encryption as a service — This question tests Explain encryption as a service — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Yes, because min_decryption_version is 1, which allows decryption with version 1 and higher. — Option B is correct because the `min_decryption_version` parameter in Vault's transit secrets engine specifies the lowest key version that can be used for decryption. In the exhibit, `min_decryption_version` is set to 1, meaning any version from 1 upward is allowed. Since the data was encrypted with version 1, decryption will succeed. This parameter does not block decryption with version 1; it only prevents decryption with versions lower than the specified value.

What should I do if I get this VA-003 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 25, 2026

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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.