Get PCI QSA_New_V4 Exam Practice Questions - Real and Updated

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.

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.

Answer : D

Firewall Hardening:

Requirement 1.2 mandates that firewalls should be configured with only the necessary functionality to reduce attack surfaces. Disabling unused functions eliminates potential vulnerabilities.

Explanation of Other Options:

A: Shared accounts violate Requirement 8.1.5, which prohibits shared or generic accounts.

B: Allowing all traffic initially violates Requirement 1.2.1, which requires a restrictive firewall policy.

C: Synchronization of rules may not always be necessary, especially for firewalls with different scopes or roles.

Answer : B

Stateful Inspection

PCI DSS Requirement 1.2 specifies the need for stateful inspection to track the state of active connections. This ensures that only valid responses to communication initiated by trusted networks are allowed.

Invalid or unsolicited response traffic is blocked to prevent exploitation of vulnerabilities.

Key Functionality of Stateful Firewalls

Stateful firewalls maintain session information and only allow traffic that matches an existing session or expected response.

Incorrect Options

Option A: Administrative access restrictions are important but unrelated to stateful responses.

Option C: Baseline configurations are a different security control.

Option D: Logging and correlation are for threat detection, not stateful response.

Answer : A

Restricting Database Access

PCI DSS Requirement 7.2 specifies that access to cardholder data, including databases, must be restricted by business need-to-know.

Restricting access to programmatic methods minimizes the risk of unauthorized queries and data breaches.

Eliminating Direct Access

Direct database access by end-users or administrators poses significant risk unless strictly controlled and monitored. Programmatic methods (e.g., via applications with role-based access controls) align with security best practices.

Incorrect Options

Option B: Administrators might need access, but access should not be limited to system/network administrators.

Option C: Application IDs should not be used directly by individuals, as this circumvents accountability.

Option D: Shared accounts are discouraged due to a lack of traceability.