CISA-KR 문제 271
다음 중 조직의 정보 보안 정책의 적절성을 평가할 때 IS 감사자가 가장 중요한 고려 사항은 무엇입니까?
정답: B
Explanation
The most important consideration for an IS auditor when assessing the adequacy of an organization's information security policy is the business objectives. An information security policy is a document that defines the organization's approach to protecting its information assets from internal and external threats. It should align with the organization's mission, vision, values, and goals, and support its business processes and functions1. An information security policy should also be focused on the business needs and requirements of the organization, rather than on technical details or specific solutions2.
The other options are not as important as the business objectives, because they do not directly reflect the organization's purpose and direction. IT steering committee minutes are records of the discussions and decisions made by a group of senior executives who oversee the IT strategy and governance of the organization. They may provide some insights into the information security policy, but they are not sufficient to evaluate its adequacy3. Alignment with the IT tactical plan is a measure of how well the information security policy supports the short-term actions and projects that implement the IT strategy. However, the IT tactical plan itself should be aligned with the business objectives, and not vice versa4. Compliance with industry best practice is a desirable quality of an information security policy, but it is not a guarantee of its effectiveness or suitability for the organization. Industry best practices are general guidelines or recommendations that may not apply to every organization or situation. An information security policy should be customized and tailored to the specific context and needs of the organization. References:
The 12 Elements of an Information Security Policy | Exabeam1
11 Key Elements of an Information Security Policy | Egnyte2
What is an IT steering committee? Definition, roles & responsibilities ...3 What is IT Strategy? Definition, Components & Best Practices | BMC ...4 IT Security Policy: Key Components & Best Practices for Every Business
The most important consideration for an IS auditor when assessing the adequacy of an organization's information security policy is the business objectives. An information security policy is a document that defines the organization's approach to protecting its information assets from internal and external threats. It should align with the organization's mission, vision, values, and goals, and support its business processes and functions1. An information security policy should also be focused on the business needs and requirements of the organization, rather than on technical details or specific solutions2.
The other options are not as important as the business objectives, because they do not directly reflect the organization's purpose and direction. IT steering committee minutes are records of the discussions and decisions made by a group of senior executives who oversee the IT strategy and governance of the organization. They may provide some insights into the information security policy, but they are not sufficient to evaluate its adequacy3. Alignment with the IT tactical plan is a measure of how well the information security policy supports the short-term actions and projects that implement the IT strategy. However, the IT tactical plan itself should be aligned with the business objectives, and not vice versa4. Compliance with industry best practice is a desirable quality of an information security policy, but it is not a guarantee of its effectiveness or suitability for the organization. Industry best practices are general guidelines or recommendations that may not apply to every organization or situation. An information security policy should be customized and tailored to the specific context and needs of the organization. References:
The 12 Elements of an Information Security Policy | Exabeam1
11 Key Elements of an Information Security Policy | Egnyte2
What is an IT steering committee? Definition, roles & responsibilities ...3 What is IT Strategy? Definition, Components & Best Practices | BMC ...4 IT Security Policy: Key Components & Best Practices for Every Business
CISA-KR 문제 272
다음 중 IS 감사인이 감사 업무에 부적합한 위험 평가를 수행할 때 고려해야 할 가장 중요한 것은 무엇입니까?
정답: C
Explanation
The results of the previous audit are an important source of information for an IS auditor to consider when performing the risk assessment prior to an audit engagement, as they can provide insights into the current state and performance of the auditee, identify any issues or gaps that need to be followed up or addressed, and highlight any areas that require special attention or focus. The design of controls is an important factor to evaluate during an audit engagement, but it is not the most important thing to consider when performing the risk assessment prior to an audit engagement, as it does not reflect the actual implementation or effectiveness of the controls. Industry standards and best practices are useful benchmarks or guidelines for an IS auditor to compare or measure against during an audit engagement, but they are not the most important thing to consider when performing the risk assessment prior to an audit engagement, as they may not be applicable or relevant to the specific context or objectives of the auditee. The amount of time since the previous audit is a relevant criterion to determine the frequency or timing of an audit engagement, but it is not the most important thing to consider when performing the risk assessment prior to an audit engagement, as it does not indicate the level or nature of risk associated with the auditee.
The results of the previous audit are an important source of information for an IS auditor to consider when performing the risk assessment prior to an audit engagement, as they can provide insights into the current state and performance of the auditee, identify any issues or gaps that need to be followed up or addressed, and highlight any areas that require special attention or focus. The design of controls is an important factor to evaluate during an audit engagement, but it is not the most important thing to consider when performing the risk assessment prior to an audit engagement, as it does not reflect the actual implementation or effectiveness of the controls. Industry standards and best practices are useful benchmarks or guidelines for an IS auditor to compare or measure against during an audit engagement, but they are not the most important thing to consider when performing the risk assessment prior to an audit engagement, as they may not be applicable or relevant to the specific context or objectives of the auditee. The amount of time since the previous audit is a relevant criterion to determine the frequency or timing of an audit engagement, but it is not the most important thing to consider when performing the risk assessment prior to an audit engagement, as it does not indicate the level or nature of risk associated with the auditee.
CISA-KR 문제 273
다음 지표 중 웹 애플리케이션 성능을 가장 잘 나타내는 지표는 무엇입니까?
정답: C
Explanation
The best indicator of the performance of a web application is the average response time. This metric measures how long it takes for the web server to process and deliver a request from the client. It reflects the user's perception of how fast or slow the web application is, and it affects the user's satisfaction, engagement, and conversion. A low average response time means that the web application is responsive and efficient, while a high average response time means that the web application is sluggish and unreliable.
HTTP server error rate, server thread count, and server uptime are not as good indicators of the performance of a web application as the average response time. HTTP server error rate measures how often the web server fails to handle a request and returns an error code, such as 404 (Not Found) or 500 (Internal Server Error).
This metric indicates the reliability and availability of the web application, but it does not capture how fast or slow the web application is. Server thread count measures how many concurrent requests the web server can handle at a given time. This metric indicates the scalability and capacity of the web application, but it does not capture how long each request takes to process. Server uptime measures how long the web server has been running without interruption. This metric indicates the stability and resilience of the web application, but it does not capture how well the web application performs during that time.
References:
10 Key Application Performance Metrics & How to Measure Them - Stackify1 Measuring performance - Learn web development | MDN2 Understanding the Basics of Web Performance | BrowserStack3
14 Important Website Performance Metrics You Should Be Analyzing4
Top 8 Web Application Performance Metrics | MetricFire Blog5
Web Performance Monitoring: A How to Guide for Developers - Stackify6
The best indicator of the performance of a web application is the average response time. This metric measures how long it takes for the web server to process and deliver a request from the client. It reflects the user's perception of how fast or slow the web application is, and it affects the user's satisfaction, engagement, and conversion. A low average response time means that the web application is responsive and efficient, while a high average response time means that the web application is sluggish and unreliable.
HTTP server error rate, server thread count, and server uptime are not as good indicators of the performance of a web application as the average response time. HTTP server error rate measures how often the web server fails to handle a request and returns an error code, such as 404 (Not Found) or 500 (Internal Server Error).
This metric indicates the reliability and availability of the web application, but it does not capture how fast or slow the web application is. Server thread count measures how many concurrent requests the web server can handle at a given time. This metric indicates the scalability and capacity of the web application, but it does not capture how long each request takes to process. Server uptime measures how long the web server has been running without interruption. This metric indicates the stability and resilience of the web application, but it does not capture how well the web application performs during that time.
References:
10 Key Application Performance Metrics & How to Measure Them - Stackify1 Measuring performance - Learn web development | MDN2 Understanding the Basics of Web Performance | BrowserStack3
14 Important Website Performance Metrics You Should Be Analyzing4
Top 8 Web Application Performance Metrics | MetricFire Blog5
Web Performance Monitoring: A How to Guide for Developers - Stackify6
CISA-KR 문제 274
IS 감사인은 비디오 모니터링 및 근접 카드 제어 통신실에 대한 모든 액세스 시도를 검토할 계획입니다. 다음 중 감사인에게 가장 유용한 것은 무엇입니까?
정답: B
Explanation
A system electronic log is the most useful source of information for an IS auditor to review all access attempts to a video-monitored and proximity card-controlled communications room. A system electronic log can provide accurate and detailed records of the date, time, card number, and status (success or failure) of each access attempt. A system electronic log can also be easily searched, filtered, and analyzed by the auditor to identify any unauthorized or suspicious access attempts.
A manual sign-in and sign-out log is not as reliable or useful as a system electronic log, because it depends on the honesty and compliance of the users. A manual log can be easily manipulated, forged, or omitted by the users or intruders. A manual log also does not capture the status of each access attempt, and it can be difficult to verify the identity of the users based on their signatures.
An alarm system with CCTV is not as useful as a system electronic log, because it only captures the events that trigger the alarm, such as unauthorized or forced entry. An alarm system with CCTV does not provide a complete record of all access attempts, and it can be affected by factors such as camera angle, lighting, and resolution. An alarm system with CCTV also requires more time and effort to review the video footage by the auditor.
A security incident log is not as useful as a system electronic log, because it only records the incidents that are reported by the users or detected by the security staff. A security incident log does not provide a comprehensive record of all access attempts, and it can be incomplete or inaccurate depending on the reporting and detection mechanisms. A security incident log also does not capture the details of each access attempt, such as the card number and status.
References:
ISACA CISA Review Manual 27th Edition (2019), page 247
ISACA CISA Certified Information Systems Auditor Exam ... - PUPUWEB
A system electronic log is the most useful source of information for an IS auditor to review all access attempts to a video-monitored and proximity card-controlled communications room. A system electronic log can provide accurate and detailed records of the date, time, card number, and status (success or failure) of each access attempt. A system electronic log can also be easily searched, filtered, and analyzed by the auditor to identify any unauthorized or suspicious access attempts.
A manual sign-in and sign-out log is not as reliable or useful as a system electronic log, because it depends on the honesty and compliance of the users. A manual log can be easily manipulated, forged, or omitted by the users or intruders. A manual log also does not capture the status of each access attempt, and it can be difficult to verify the identity of the users based on their signatures.
An alarm system with CCTV is not as useful as a system electronic log, because it only captures the events that trigger the alarm, such as unauthorized or forced entry. An alarm system with CCTV does not provide a complete record of all access attempts, and it can be affected by factors such as camera angle, lighting, and resolution. An alarm system with CCTV also requires more time and effort to review the video footage by the auditor.
A security incident log is not as useful as a system electronic log, because it only records the incidents that are reported by the users or detected by the security staff. A security incident log does not provide a comprehensive record of all access attempts, and it can be incomplete or inaccurate depending on the reporting and detection mechanisms. A security incident log also does not capture the details of each access attempt, such as the card number and status.
References:
ISACA CISA Review Manual 27th Edition (2019), page 247
ISACA CISA Certified Information Systems Auditor Exam ... - PUPUWEB
CISA-KR 문제 275
IS 감사인은 매우 민감한 데이터 센터에 대한 무단 액세스가 피기백 또는 테일게이팅을 통해 확보될 수 있다고 우려합니다. 다음 중 BEST 권장 사항은 무엇입니까? (CISA Certification - Information Systems Auditor 공식 서적에서 정답을 선택하고 설명하십시오.)
정답: C
Explanation
The best recommendation to prevent unauthorized access to a highly sensitive data center by piggybacking or tailgating is to use an airlock entrance. An airlock entrance is a type of access control system that consists of two doors that are interlocked, so that only one door can be opened at a time. This prevents an unauthorized person from following an authorized person into the data center without being detected. An airlock entrance can also be integrated with other security measures, such as biometrics, card readers, or PIN pads, to verify the identity and authorization of each person entering the data center.
Biometrics (option A) is a method of verifying the identity of a person based on their physical or behavioral characteristics, such as fingerprints, iris scans, or voice recognition. Biometrics can provide a high level of security, but they are not sufficient to prevent piggybacking or tailgating, as an unauthorized person can still follow an authorized person who has been authenticated by the biometric system.
Procedures for escorting visitors (option B) is a policy that requires all visitors to the data center to be accompanied by an authorized employee at all times. This can help prevent unauthorized access by visitors, but it does not address the risk of piggybacking or tailgating by other employees or contractors who may have legitimate access to the building but not to the data center.
Intruder alarms (option D) are devices that detect and alert when an unauthorized person enters a restricted area. Intruder alarms can provide a deterrent and a response mechanism for unauthorized access, but they are not effective in preventing piggybacking or tailgating, as they rely on the detection of the intruder after they have already entered the data center.
References: 1: CISA Certification | Certified Information Systems Auditor | ISACA 2: CISA Certified Information Systems Auditor Study Guide, 4th Edition 3: CISA - Certified Information Systems Auditor Study Guide [Book]
The best recommendation to prevent unauthorized access to a highly sensitive data center by piggybacking or tailgating is to use an airlock entrance. An airlock entrance is a type of access control system that consists of two doors that are interlocked, so that only one door can be opened at a time. This prevents an unauthorized person from following an authorized person into the data center without being detected. An airlock entrance can also be integrated with other security measures, such as biometrics, card readers, or PIN pads, to verify the identity and authorization of each person entering the data center.
Biometrics (option A) is a method of verifying the identity of a person based on their physical or behavioral characteristics, such as fingerprints, iris scans, or voice recognition. Biometrics can provide a high level of security, but they are not sufficient to prevent piggybacking or tailgating, as an unauthorized person can still follow an authorized person who has been authenticated by the biometric system.
Procedures for escorting visitors (option B) is a policy that requires all visitors to the data center to be accompanied by an authorized employee at all times. This can help prevent unauthorized access by visitors, but it does not address the risk of piggybacking or tailgating by other employees or contractors who may have legitimate access to the building but not to the data center.
Intruder alarms (option D) are devices that detect and alert when an unauthorized person enters a restricted area. Intruder alarms can provide a deterrent and a response mechanism for unauthorized access, but they are not effective in preventing piggybacking or tailgating, as they rely on the detection of the intruder after they have already entered the data center.
References: 1: CISA Certification | Certified Information Systems Auditor | ISACA 2: CISA Certified Information Systems Auditor Study Guide, 4th Edition 3: CISA - Certified Information Systems Auditor Study Guide [Book]
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