Important PCI QSA_New_V4 Exam Questions

Answer: A

Explanation:

Definition of Quarterly:

PCI DSS defines 'quarterly' as occurring once within each calendar quarter. This means the activity must happen at least once in Q1, Q2, Q3, and Q4, with no rigid restrictions on specific days.

Clarification on Other Options:

B: While 95--97 days approximates a quarter, it is not mandated as a rigid timeframe.

C/D: Fixed dates (e.g., 15th or 1st of specific months) are not prescribed in PCI DSS.

Answer: A

Explanation:

PCI PIN Transaction Security (PTS) Standard:

The PCI PTS standard focuses on securing Point-of-Interaction (POI) devices, such as payment terminals, that process payment card transactions and protect account data during capture.

Clarifications on Covered Areas:

This standard includes specifications for physical and logical security controls to prevent unauthorized access to sensitive cardholder data on POI devices.

Invalid Options:

B: Secure coding practices are addressed by PCI PA-DSS (Payment Application Data Security Standard).

C: Cryptographic algorithm development is not specific to PCI PTS.

D: End-to-end encryption solutions are not covered under PCI PTS.

Answer: A

Explanation:

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.

Answer: C

Explanation:

Settlement in the Payment Process

Settlement is the stage where the merchant's bank pays the merchant for the transaction, and the cardholder's bank debits the cardholder's account.

PCI DSS does not explicitly describe the settlement process but emphasizes the protection of data during all stages.

Transaction Stages

Authorization: Approves the transaction.

Clearing: Data is sent to the cardholder's bank.

Settlement: Funds are transferred between banks.

Chargeback: Disputes are handled, and funds might be reversed.

Answer: B

Explanation:

Compensating Controls Definition and Purpose

A compensating control is an alternate measure that satisfies the intent of a specific PCI DSS requirement and provides an equivalent level of security.

The rationale and risk mitigation must be explicitly documented using the Compensating Control Worksheet (CCW).

Mandatory Documentation

PCI DSS v4.0 mandates the use of a CCW when implementing compensating controls. This applies regardless of acquirer approvals.

The CCW requires detailed documentation including:

Constraints preventing the original requirement from being implemented.

Justification for the compensating control.

Description of the control and evidence of its effectiveness.

Using Existing Requirements

If an existing PCI DSS requirement (e.g., Requirement 5 for antivirus) is already implemented and can mitigate the risks of not meeting another requirement, it may qualify as a compensating control.

Approval and Review Process

QSAs must validate the implementation, effectiveness, and appropriateness of compensating controls during the assessment process