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CAS-004 Practice Question: Refer to the exhibit

Exhibit

{
  "dataClassification": {
    "levels": ["Public", "Internal", "Confidential", "Critical"],
    "default": "Internal",
    "rules": [
      {"dataType": "PII", "level": "Confidential"},
      {"dataType": "PCI", "level": "Critical"}
    ]
  }
}

Refer to the exhibit. The data classification policy defines levels and rules. During an audit, a database containing both PII and credit card numbers is found labeled as 'Internal'. Which of the following is the BEST first action?

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

✓

Reclassify the database as 'Critical' to reflect the highest required level

The database should be reclassified to 'Critical' because it contains PCI data, which requires the highest level. Creating a new level is unnecessary; accepting risk violates policy; removing data is not the first step.

Answer analysis

Option-by-option breakdown

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

  • ✗

    Accept the risk as the data is not public

    Why it's wrong here

    Violates policy requirement for PCI data.

  • ✗

    Remove the credit card numbers from the database

    Why it's wrong here

    Removing the credit card numbers does not address the core issue: the database is mislabelled as 'Internal' despite containing PII and credit card data that, under the classification policy, likely requires a higher tier such as 'Confidential' or 'Restricted'. This action is tempting because data sanitisation is a legitimate method to reduce compliance scope, and it would be correct if the policy mandated eliminating sensitive fields to keep the database at the 'Internal' level, but here the policy violation stems from incorrect classification, not the data's presence.

  • ✗

    Create a new classification level for mixed data

    Why it's wrong here

    Unnecessary; existing levels can be used.

  • ✓

    Reclassify the database as 'Critical' to reflect the highest required level

    Why this is correct

    Aligns with policy rule that PCI data must be Critical.

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JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This CAS-005 practice question is part of Courseiva's free CompTIA 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 CAS-005 exam.