easyMultiple SelectObjective-mapped
CAS-004 Practice Question: A security team is implementing controls to meet…
A security team is implementing controls to meet PCI DSS requirements for cardholder data. Which THREE controls are required?
⚠ Common exam trap
A common point of confusion is the distinction between required controls (like encryption, MFA, and unique IDs) and recommended practices (like antivirus updates or vulnerability scans) that are part of broader requirements but not listed as standalone mandatory controls in the PCI DSS summary.
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
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Encrypt cardholder data at rest
PCI DSS requires several controls, but the question asks for THREE. Options A, B, and D are mandatory controls per PCI DSS: encryption of cardholder data at rest (Requirement 3.4), multi-factor authentication for remote access (Requirement 8.3), and unique IDs for each person with access (Requirement 7.1). While antivirus (Requirement 5) and quarterly vulnerability scans (Requirement 11.2) are also required, they are part of broader operational requirements and not the focus of this specific selection.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Encrypt cardholder data at rest
Why this is correct
Correct. PCI DSS Requirement 3.4 requires encryption of cardholder data at rest.
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Implement multi-factor authentication for remote access
Why this is correct
Correct. PCI DSS Requirement 8.3 requires multi-factor authentication for remote access to the cardholder data environment.
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Regularly update antivirus software
Why it's wrong here
Correct. PCI DSS Requirement 5.1 requires deploying and regularly updating anti-malware software.
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Use unique IDs for each person with access
Why this is correct
Correct. PCI DSS Requirement 7.1 requires unique IDs for each person with access to cardholder data.
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Perform quarterly vulnerability scans
Why it's wrong here
Correct. PCI DSS Requirement 11.2 requires quarterly vulnerability scans.
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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.