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An organization wishes to implement multi-factor authentication for remote access, using the user's Individual password and a digital certificate. Which of the following scenarios would meet PCI DSS requirements for multi-factor authentication?
Answer : B
Multi-Factor Authentication (MFA)
MFA requires at least two factors from different categories: something you know (password), something you have (digital certificate), or something you are (biometric).
PCI DSS Requirement 8 mandates that credentials like certificates must be unique to each user.
Secure Certificate Use
Certificates must not be shared and should be assigned individually to ensure accountability and prevent unauthorized access.
Incorrect Options
Option A: Limiting certificates to administrative groups does not fulfill PCI DSS for all users.
Option C: Logging certificates for retrieval is unrelated to security requirements.
Option D: Certificates do not have a mandatory 90-day change requirement.
In accordance with PCI DSS Requirement 10, how long must audit logs be retained?
Answer : A
Audit Log Retention Requirements
PCI DSS Requirement 10.7 specifies audit logs must be retained for a minimum of one year. The most recent three months must be immediately accessible for incident analysis and reporting.
Purpose of Log Retention
Retaining logs aids in forensic investigations, regulatory compliance, and operational oversight.
Incorrect Options
Options B, C, and D specify durations that are not consistent with PCI DSS requirements.
Which statement about PAN is true?
Answer : A
PAN Transmission Protection
PCI DSS Requirement 4.1 mandates strong cryptography for PAN during transmission over both public and private wireless networks to prevent unauthorized interception.
Incorrect Options
Options B and D: PAN protection is not required for private wired networks.
Option C: PAN must be protected during transmission over public wireless networks.
A sample of business facilities is reviewed during the PCI DSS assessment. What is the assessor required to validate about the sample?
Answer : D
Sampling in Assessments
PCI DSS v4.0 requires assessors to ensure that sampled business facilities represent all types and locations to provide comprehensive coverage of the entity's operations.
Sampling Considerations
Assessors must include facilities storing or processing cardholder data and validate controls across diverse locations.
Incorrect Options
Option A: Consistency does not ensure comprehensive representation.
Option B: PCI DSS does not mandate a 10% sample size.
Option C: It is not mandatory to review every facility storing cardholder data.
Which statement is true regarding the presence of both hashed and truncated versions of the same PAN in an environment?
Answer : A
Hashing and Truncation
PCI DSS Requirement 3.4 mandates protecting stored PAN using methods like hashing and truncation. If both versions coexist, controls must ensure they cannot be combined to reconstruct the original PAN.
Incorrect Options
Option B: Truncation is unrelated to hashed PANs.
Option C: Correlation of hashed and truncated versions to identify the PAN violates PCI DSS principles.
Option D: Coexistence of hashed and truncated PANs is permissible if proper controls are in place.
