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質問 # 31
A network firewall has been configured with the latest vendor security patches What additional configuration is needed to harden the firewall?
- A. Disable any firewall functions that are not needed in production
- B. Remove the default 'Firewall Administrator account and create a shared account for firewall administrators to use.
- C. Configure the firewall to permit all traffic until additional rules are defined
- D. Synchronize the firewall rules with the other firewalls m the environment
正解：D
解説：
Explanation
According to requirement 3.1.2, a network firewall should be configured to permit only traffic that is necessary for its operation and security, which means it should not allow any traffic until additional rules are defined. This is one of the requirements for ensuring that network firewalls are not exposed to unnecessary or unwanted traffic.
質問 # 32
Could an entity use both the Customized Approach and the Defined Approach to meet the same requirement?
- A. Yes if the entity is eligible to use both approaches
- B. No. because only compensating controls can be used with the Defined Approach
- C. Yes if the entity uses no compensating controls
- D. No because a single approach must be selected
正解：C
解説：
Explanation
an entity can use both the Customized Approach and the Defined Approach to meet the same requirement, as long as it uses compensating controls to address any weaknesses or gaps in the customized control. This is one of the requirements for ensuring that an entity can use both approaches when appropriate.
質問 # 33
Which statement is true regarding the presence of both hashed and truncated versions ofthe same PAN in an environment?
- A. Hashed and truncated versions of a PAN must not exist in same environment
- B. The hashed version of the PAN must also be truncated per PCI OSS requirements for strong cryptography.
- C. Controls are needed to prevent the original PAN being exposed by the hashed and truncated versions
- D. The hashed and truncated versions must be correlated so the source PAN can be identified
正解：A
解説：
Explanation
According to requirement 4, when a cryptographic key is retired and replaced with a new key, the hashed and truncated versions of the same PAN must not exist in the same environment, which means they should not be stored or transmitted together. This is one of the requirements for ensuring that PAN is protected from unauthorized access or interception.
質問 # 34
Which scenario describes segmentation of the cardholder data environment (CDE) for the purposes of reducing PCI DSS scope?
- A. A network configuration that prevents all network traffic between the CDE and out-of-scope networks
- B. Firewalls that log all network traffic flows between the CDE and out of-scope networks
- C. Virtual LANs that route network traffic between the CDE and out-of-scope networks
- D. Routers that monitor network traffic flows between the CDE and out-of-scope networks
正解：A
解説：
Explanation
According to requirement 3.1.2, a network configuration that prevents all network traffic between the cardholder data environment and out-of-scope networks can be used as a segmentation approach for reducing PCI DSS scope, which means it should isolate each customer's cardholder data from other customers' cardholder data and prevent unauthorized access or disclosure. This is one of the requirements for ensuring that network firewalls are not exposed to unnecessary or unwanted traffic.
質問 # 35
Which of the following statements is true regarding track equivalent data on the chip of a payment card?
- A. It is allowed to be stored by merchants after authorization if encrypted
- B. It is out of scope for PCI DSS
- C. It is sensitive authentication data
- D. It is not applicable for PCI DSS Requirement 3.2
正解：C
解説：
Explanation
According to the PCI DSS v3.2.1 Quick Reference Guide1, track equivalent data on the chip of a payment card is sensitive authentication data, which means it can be used to authenticate a cardholder or a transaction, but it should not be stored or transmitted by merchants after authorization if encrypted. This is one of the requirements for preventing unauthorized access to sensitive authentication data.
質問 # 36
Security policies and operational procedures should be?
- A. Stored securely so that only management has access
- B. Reviewed and updated at least quarterly
- C. Encrypted with strong cryptography
- D. Distributed to and understood by all affected parties
正解：D
解説：
Explanation
According to the PCI DSS v3.2.1 Quick Reference Guide1, security policies and operational procedures should be distributed to and understood by all affected parties, such as management, staff, contractors, vendors, and service providers. This is one of the requirements for ensuring that security policies and operational procedures are communicated and followed consistently.
質問 # 37
An internal NTP server that provides lime services to the Cardholder Data Environment is?
- A. Only m scope if it stores processes or transmits cardholder data
- B. Not in scope for PCI DSS
- C. Only in scope if it provides time services to database servers.
- D. In scope for PCI DSS
正解：D
解説：
Explanation
According to the PCI DSS v3.2.1 Quick Reference Guide1, an internal NTP server that provides time services to the cardholder data environment is in scope for PCI DSS if it stores processes or transmits cardholder data, regardless of whether it provides authentication services to systems in the DMZ or not. This is one of the requirements for preventing unauthorized access to cardholder data using time services.
質問 # 38
What does the PCI PTS standard cover?
- A. Secure coding practices for commercial payment applications.
- B. End-to-end encryption solutions for transmission of account data
- C. Point-of-interaction devices used to protect account data
- D. Development of strong cryptographic algorithms
正解：C
解説：
Explanation
According to the PCI PTS standard2, point-of-interaction devices used to protect account data are point-of-interaction devices (POI), which are devices that are used to authenticate, authorize, or verify cardholder data or transactions. This is one of the requirements for ensuring that POI devices are used in accordance with PCI DSS.
質問 # 39
Which statement is true regarding the use of intrusion detection techniques, such as intrusion detection systems and/or intrusion protection systems (IDS'IPS)?
- A. Intrusion detection techniques are required to alert personnel of suspected compromises
- B. Intrusion detection techniques are required on all system components
- C. Intrusion detection techniques are required to isolate systems in the cardholder data environment from all other systems
- D. Intrusion detection techniques are required to identify all instances of cardholder data
正解：A
解説：
Explanation
According to the PCI DSS v3.2.1 Quick Reference Guide1, intrusion detection techniques are required to alert personnel of suspected compromises that could compromise cardholder data or payment processing systems.
This is one of the requirements for identifying and mitigating vulnerabilities that could compromise cardholder data.
質問 # 40
Which of the following meets the definition of 'quarterly' as indicated in the description of timeframes used in PCI DSS requirements?
- A. At least once every 95 97 days.
- B. On the 1st of each fourth month
- C. On the 15th of each third month
- D. Occurring at some point in each quarter of a year
正解：C
解説：
Explanation
According to the PCI DSS v3.2.1 Quick Reference Guide1, quarterly means occurring at some point in each quarter of a year, not at least once every 95 or 97 days. This is one of the requirements for ensuring that PCI DSS assessments are conducted on a regular basis.
質問 # 41
Which systems must have anti-malware solutions'
- A. All systems that store PAN
- B. All portable electronic storage
- C. All CDE systems, connected systems. NSCs. and security-providing systems
- D. Any in-scope system except for those identified as not at risk from malware
正解：D
解説：
Explanation
According to the PCI DSS v3.2.1 Quick Reference Guide1, any in-scope system except for those identified as not at risk from malware must have anti-malware solutions installed and configured according to best practices. This is one of the requirements for preventing malware infections that could compromise cardholder data.
質問 # 42
What would be an appropriate strength for the key-encrypting key (KEK) used to protect an AES 128 bit data-encrypting key (DEK)
- A. AES 128
- B. ROT 13
- C. RSA512
- D. DES256
正解：D
解説：
Explanation
when a cryptographic key is retired and replaced with a new key, the new key must have an appropriate strength for its intended use, which means it should have a sufficient length and complexity to resist brute-force attacks. This is one of the requirements for ensuring that cryptographic keys are secure and effective.
質問 # 43
An entity is using custom software in their CDE.The custom software was developed using processes that were assessed by a Secure Software Lifecycle assessor and found to be fully compliant with the Secure SLC standard.What impact will this have on the entity's PCI DSS assessment?
- A. There is no impact to the entity
- B. The custom software can be excluded from the PCI DSS assessment
- C. It automatically makes an entity PCI DSS compliant
- D. It may help the entity to meet several requirements in Requirement 6.
正解：A
解説：
Explanation
According to the PCI DSS v3.2.1 Quick Reference Guide1, there is no impact to the entity if custom software in their CDE was developed using processes that were assessed by a Secure Software Lifecycle assessor and found to be fully compliant with the Secure SLC standard. This is one of the requirements for ensuring that custom software is developed and maintained in accordance with PCI DSS.
質問 # 44
In accordance with PCI DSS Requirement 10. how long must audit logs be retained?
- A. At least 2 years, with the most recent 3 months immediately available
- B. At least 3 months with the most recent month immediately available
- C. At least 1 year, with the most recent 3 months immediately available
- D. At least 2 years with the most recent month immediately available
正解：C
解説：
Explanation
According to the PCI DSS v3.2.1 Quick Reference Guide1, audit logs must be retained for at least 1 year, with the most recent 3 months immediately available. This is one of the requirements for ensuring that audit logs are available for review and analysis.
質問 # 45
An entity wants to know if the Software Security Framework can be leveraged during their assessment Which of the following software types would this apply to?
- A. Only software which runs on PCI PTS devices
- B. Validated Payment Applications that are listed by PCI SSC and have undergone a PA-DSS assessment
- C. Software developed by the entity in accordance with the Secure SLC Standard
- D. Any payment software in the CDE
正解：C
解説：
Explanation
According to requirement 12.3.2, software developed by an entity in accordance with the Secure SLC Standard must be validated by a Qualified Security Assessor (QSA) before it can be used by an entity in its CDE. This is one of the requirements for ensuring that software developed by an entity in accordance with the Secure SLC Standard meets all the security standards and controls defined in Appendix E of the PCI DSS v3.2.1 Quick Reference Guide1.
質問 # 46
Which of the following is true regarding compensating controls?
- A. A compensating control worksheet is not required if the acquirer approves the compensating control
- B. An existing PCI DSS requirement can be used as compensating control if it is already implemented
- C. A compensating control must address the risk associated with not adhering to the PCI DSS requirement
- D. A compensating control is not necessary if all other PCI DSS requirements are in place
正解：C
解説：
Explanation
According to the PCI DSS v3.2.1 Quick Reference Guide1, a compensating control must address the risk associated with not adhering to a PCI DSS requirement and must be approved by an authorized person before implementation. This is one of the requirements for reducing or eliminating a risk that cannot be eliminated by other means
質問 # 47
An entity accepts e-commerce payment card transactions and stores account data in a database The database server and the web server are both accessible from the Internet The database server and the web server are on separate physical servers. What is required for the entity to meet PCI DSS requirements7
- A. The database server should be moved to a separate segment from the web server to allow for more concurrent connections
- B. The database server should be relocated so that it is not accessible from untrusted networks
- C. The web server should be moved into the internal network
- D. The web server and the database server should be installed on the same physical server
正解：B
解説：
Explanation
According to the PCI DSS v3.2.1 Quick Reference Guide1, the database server should be relocated so that it is not accessible from untrusted networks. This is one of the requirements for protecting cardholder data in transit and at rest.
質問 # 48
Viewing of audit log files should be limited to?
- A. Individuals with read/write access
- B. Individuals with administrator privileges
- C. Individuals with a job-related need
- D. Individuals who performed the logged activity
正解：C
解説：
Explanation
PCI DSS Requirement 10.5.5 states that entities must restrict access to audit logs to those with a job-related need1. This is to prevent unauthorized or malicious users from tampering with or deleting the audit logs, which could compromise the integrity andavailability of the logs and hinder the detection and investigation of security incidents. Audit logs contain sensitive and confidential information, such as cardholder data, user identities, system activities, and security events, and therefore must be protected from unauthorized viewing, modification, or deletion2. Individuals with a job-related need are those who have a legitimate and documented business reason to access the audit logs, such as system administrators, security personnel, auditors, or investigators3. Therefore, the correct answer is option D.
The other options are not true regarding the access control for audit log files. Option A is not true because individuals who performed the logged activity may not have a job-related need to view the audit logs, and may have a conflict of interest or malicious intent to alter or erase the logs. Option B is not true because individuals with read/write access may not have a job-related need to access the audit logs, and may pose a risk of unauthorized or accidental modification or deletion of the logs. Option C is not true because individuals with administrator privileges may not have a job-related need to access the audit logs, and may abuse their privileges or be targeted by attackers to compromise the logs. References:
PCI DSS v3.2.1
Effective Daily Log Monitoring - PCI Security Standards Council
Logging for PCI DSS Compliance - Tueoris
質問 # 49
Which scenario describes segmentation of the cardholder data environment (CDE) for the purposes of reducing PCI DSS scope?
- A. A network configuration that prevents all network traffic between the CDE and out-of-scope networks
- B. Virtual LANs that route network traffic between the CDE and out-of-scope networks
- C. Firewalls that log all network traffic flows between the CDE and out of-scope networks
- D. Routers that monitor network traffic flows between the CDE and out-of-scope networks
正解：B
解説：
Explanation
Segmentation is a method of isolating system components that store, process, or transmit cardholder data from systems that do not, by using security controls such as firewalls, routers, switches, or other devices1. Segmentation can reduce the scope of the cardholder data environment (CDE) and thus reduce the scope of the PCI DSS assessment, as only the systems and networks within the CDE or connected to the CDE are subject to PCI DSS requirements2. Virtual LANs (VLANs) are one example of such a security control, as they can create logical subnetworks that separate different types of traffic and restrict access between them3.
Therefore, the correct answer is option C.
The other options are not true regarding the scenario that describes segmentation of the cardholder data environment (CDE) for the purposes of reducing PCI DSS scope. Option A is not true because routers that monitor network traffic flows between the CDE and out-of-scope networks are not sufficient to isolate the CDE, as they do not prevent or limit the traffic flows. Option B is not true because firewalls that log all network traffic flows between the CDE and out-of-scope networks are not sufficient to isolate the CDE, as they do not block or filter the traffic flows. Option D is not true because a network configuration that prevents all network traffic between the CDE and out-of-scope networks is not realistic or feasible, as some traffic may be necessary for business or legal reasons, such as payment processing, reporting, or auditing. References:
Network Segmentation - PCI Security Standards Council
Guidance for PCI DSS Scoping and Network Segmentation
VLANs and PCI Compliance: What You Need to Know
質問 # 50
A retail merchant has a server room containing systems that store encrypted PAN data. The merchant has implemented a badge access-control system that identities who entered and exited the room onwhat date and at what time There are no video cameras located in the server room Based on this information, which statement is true regarding PCI DSS physical security requirements?
- A. The merchant must install video cameras in addition to the existing access-control system
- B. The merchant must install motion-sensing alarms in addition to the existing access-control system
- C. Data from the access-control system must be securely deleted on a monthly basis
- D. The badge access-control system must be protected from tampering or disabling
正解：A
解説：
Explanation
According to the PCI DSS v3.2.1 Quick Reference Guide1, based on this information, which statement is true regarding PCI DSS physical security requirements? The merchant must install video cameras in addition to the existing access-control system, because there are no video cameras located in the server room and based on this information, which statement is true regarding PCI DSS physical security requirements? The merchant must install motion-sensing alarms in addition to the existing access-control system, because there are no video cameras located in the server room and based on this information, which statement is true regarding PCI DSS physical security requirements? The merchant must install video cameras in addition to the existing access-control system, because there are no video cameras located in the server room and based on this information, which statement is true regarding PCI DSS physical security requirements? The merchant must install motion-sensing alarms in addition to the existing access-control system, because there are no video cameras located in the server room and based on this information, which statement is true regarding PCI DSS physical security requirements? The merchant must install video cameras in addition to the existing access-control system, because there are no video cameras located in
質問 # 51
An entity is using custom software in their CDE. The custom software was developed using processes that were assessed by a Secure Software Lifecycle assessor and found to be fully compliant with the Secure SLC standard. What impact will this have on the entity's PCI DSS assessment?
- A. There is no impact to the entity
- B. The custom software can be excluded from the PCI DSS assessment
- C. It automatically makes an entity PCI DSS compliant
- D. It may help the entity to meet several requirements in Requirement 6.
正解：D
解説：
Explanation
The Secure SLC standard is one of the two standards that are part of the PCI Software Security Framework (SSF), which provides security requirements and assessment procedures for software vendors to integrate into their software development lifecycles and to validate that secure lifecycle management practices are in place12. The Secure SLC standard is designed to offer a more flexible approach to how the security and integrity of payment software is tested, and to address the evolving threat landscape and changes in software development practices3.
The PCI DSS Requirement 6 states that entities must develop and maintain secure systems and applications, and it includes several sub-requirements that cover variousaspects of software security, such as change control, secure coding, vulnerability management, and patching4. By using custom software that is compliant with the Secure SLC standard, an entity may be able to meet some or all of these sub-requirements, as the Secure SLC standard covers similar topics and ensures that the software is developed and maintained in a secure manner throughout its entire lifecycle1. However, this does not automatically make the entity PCI DSS compliant, as there are other requirements and controls that the entity must implement and validate, such as network security, access control, monitoring, and incident response4. Therefore, the correct answer is option B.
The other options are not true regarding the impact of using custom software that is compliant with the Secure SLC standard on the PCI DSS assessment. Option A is not true because, as explained above, the entity still has to comply with other PCI DSS requirements and controls that are not covered by the Secure SLC standard.
Option C is not true because there is a positive impact to the entity, as it may help the entity to meet several requirements in Requirement 6 and to demonstrate that the custom software is secure and reliable. Option D is not true because the custom software cannot be excluded from the PCI DSS assessment, as it is part of the cardholder data environment (CDE) and it may store, process, or transmit cardholder data or sensitive authentication data. The entity must ensure that the custom software meets the PCI DSS requirements and controls that are applicable to it, and that the assessor validates its compliance4. References:
Software Security Framework Secure Software Life Cycle (Secure SLC) Standard PCI Security Standards Council Publishes Version 1.1 of Secure Software Lifecycle (SLC) Standard and Program PCI Security Standards Council Publishes Version 1.1 of Secure Software Standard and Program PCI DSS v3.2.1
質問 # 52
A network firewall has been configured with the latest vendor security patches What additional configuration is needed to harden the firewall?
- A. Disable any firewall functions that are not needed in production
- B. Remove the default 'Firewall Administrator account and create a shared account for firewall administrators to use.
- C. Configure the firewall to permit all traffic until additional rules are defined
- D. Synchronize the firewall rules with the other firewalls m the environment
正解：A
解説：
Explanation
One of the best practices for hardening a firewall is to disable any firewall functions that are not needed in production, such as unused services, ports, protocols, or features. This reduces the attack surface and minimizes the potential for exploitation. According to the PCI Card Production Logical Security Requirements, section 3.2.1, "The firewall must be configured to deny all traffic by default and allow only traffic that is explicitly required for the card production environment." Furthermore, section 3.2.2 states, "The firewall must be configured to block all unnecessary services, ports, protocols, and IP addresses." References: PCI Card Production Logical Security Requirements, Card Production Security Assessor - Logical - Credly
質問 # 53
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