hardMultiple SelectObjective-mapped
CAS-004 Practice Question: Which TWO are required by PCI DSS for all…
Which TWO are required by PCI DSS for all merchants?
⚠ Common exam trap
The PCI DSS explicitly lists mandatory requirements that apply to all merchants. A common mistake is to treat network segmentation as a required control, when in fact it is a recommended practice for reducing scope; segmentation is only mandatory in specific contexts such as isolating the cardholder data environment.
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
✓
Maintain a vulnerability management program
PCI DSS Requirement 6 mandates a vulnerability management program that includes secure development and patch management. Requirement 11 requires regular vulnerability scans and penetration testing. Requirement 3.4 requires cardholder data at rest to be rendered unreadable via encryption, truncation, tokenization, or hashing. Both are core, mandatory requirements for all merchants, regardless of size or transaction volume.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Implement network segmentation
Why it's wrong here
Segmentation is recommended to reduce scope but not a requirement for all merchants.
- ✓
Maintain a vulnerability management program
Why this is correct
PCI DSS requirement 6 requires a vulnerability management program.
- ✗
Store CVV codes
Why it's wrong here
PCI DSS prohibits storing CVV codes after authorization.
- ✓
Encrypt cardholder data at rest
Why this is correct
PCI DSS requirement 3 mandates encryption of stored cardholder data.
- ✗
Use only tokenization
Why it's wrong here
Tokenization is not required; encryption is an alternative.
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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.