CISA-KR 문제 271
프로젝트 관리 사무소(PMO)에서 수행한 사후 구현 검토(PIR)가 효과적이었는지 여부를 가장 잘 판단할 수 있는 방법은 다음 중 어느 것일까요?
정답: D
The best indicator of whether a PIR performed by the PMO was effective is whether project outcomes have been realized. Project outcomes are the benefits or value that a project delivers to its stakeholders, such as improved efficiency, quality, customer satisfaction, or revenue. A PIR should evaluate whether project outcomes have been achieved in accordance with project objectives, scope, budget, and schedule. The other options are not as good as project outcomes in determining the effectiveness of a PIR. Lessons learned are valuable inputs for improving future projects, but they do not measure whether project outcomes have been realized. Management approval of the PIR report is a sign of acceptance and support for the PIR findings and recommendations, but it does not reflect whether project outcomes have been achieved. The review performed by an external provider is a way of ensuring objectivity and independence for the PIR, but it does not guarantee whether project outcomes have been realized. References: CISA Review Manual (Digital Version), Chapter 3, Section 3.3
CISA-KR 문제 272
다음 중 어느 것이 탐정 통제입니까?
정답: D
Verification of hash totals is a detective control. A detective control is a control that aims to identify and report errors or irregularities that have already occurred. Verification of hash totals is a technique that compares the hash values of data before and after transmission or processing to detect any changes or corruption. The other options are examples of other types of controls, such as programmed edit checks (preventive), backup procedures (recovery), and use of pass cards (preventive). References: CISA Review Manual, 27th Edition, page 223
CISA-KR 문제 273
다음 중 인증되지 않은 로그인을 방지하는 가장 안정적인 방법은 무엇입니까?
정답: A
Issuing authentication tokens is the most reliable method of preventing unauthorized logon, as it provides a strong form of authentication that requires users to present something they have (the token) and something they know (the personal identification number or PIN) to access the system. Authentication tokens are physical devices that generate a one-time password or code that changes periodically and is synchronized with the authentication server. This makes it difficult for attackers to steal or guess the credentials of legitimate users. Reinforcing current security policies, limiting after-hours usage and installing an automatic password generator are not as reliable as issuing authentication tokens, as they do not provide a strong form of authentication and may still be vulnerable to unauthorized logon attempts. References:
* : [Authentication Token Definition]
* : Authentication | ISACA
* : [Authentication Token Definition]
* : Authentication | ISACA
CISA-KR 문제 274
다음 중 IS 감사인이 각 업무에 대해 고려해야 하는 가장 중요한 위험은 무엇입니까?
정답: D
The most significant risk that IS auditors are required to consider for each engagement is the misalignment with business objectives. This is because IS audit engagements are intended to provide assurance that the IT systems and processes support the achievement of the business objectives and strategies. If there is a misalignment,it could result in wasted resources, missed opportunities, inefficiencies, errors, or failures that could adversely affect the organization's performance and reputation12. References: 1: CISA Review Manual (Digital Version), Chapter 1: The Process of Auditing Information Systems, Section 1.3: Audit Risk, page
28 2: CISA Online Review Course, Module 1: The Process of Auditing Information Systems, Lesson 1.3:
Audit Risk
28 2: CISA Online Review Course, Module 1: The Process of Auditing Information Systems, Lesson 1.3:
Audit Risk
CISA-KR 문제 275
다음 중 효과적인 재해 복구 계획(DRP)이 마련되어 있음을 가장 잘 보여주는 것은 무엇입니까?
정답: D
A disaster recovery plan (DRP) is a set of procedures and resources that enable an organization to restore its critical operations, data, and applications in the event of a disaster1. A DRP should be aligned with the organization's business continuity plan (BCP), which defines the strategies and objectives for maintaining business functions during and after a disaster1.
To ensure that a DRP is effective, it should betested regularly and thoroughly to identify and resolve any issues or gaps that might hinder itsexecution2345. Testing a DRP can help evaluate its feasibility, validity, reliability, and compatibility with the organization's environment and needs4. Testing can also help prepare the staff, stakeholders, and vendors involved in the DRP for their roles and responsibilities during a disaster3.
There are different methods and levels of testing a DRP, depending on the scope, complexity, and objectives of the test4. Some of the common testing methods are:
* Walkthrough testing: This is a step-by-step review of the DRP by the disaster recovery team and relevant stakeholders. It aims to verify the completeness and accuracy of the plan, as well as to clarify any doubts or questions among the participants45.
* Simulation testing: This is a mock exercise of the DRP in a simulated disaster scenario. It aims to assess the readiness and effectiveness of the plan, as well as to identify any challenges or weaknesses that might arise during a real disaster45.
* Checklist testing: This is a verification of the availability and functionality of the resources and equipment required for the DRP. It aims toensure that the backup systems, data, anddocumentation are accessible and up-to-date45.
* Full interruption testing: This is the most realistic and rigorous method of testing a DRP. It involves shutting down the primary site and activating the backup site for a certain period of time. It aims to measure the actual impact andperformance of the DRP under real conditions45.
* Parallel testing: This is a less disruptive method of testing a DRP. It involves running the backup site in parallel with the primary site without affecting the normal operations. It aims to compare and validate the results and outputs of both sites45.
Amongthese methods, full interruption testing would best demonstrate that an effectiveDRP is in place, as it provides the most accurate and comprehensive evaluation ofthe plan's capabilities and limitations4. Full interruption testing can reveal any hidden or unforeseen issues or risks that might affect the recovery process, such as data loss, system failure, compatibility problems, or human errors4. Full interruption testing can also verify that the backup site can support the critical operations and services ofthe organization without compromising its quality or security4.
However, full interruption testing also has some drawbacks, such as being costly, time-consuming, risky, and disruptive to the normaloperations4. Therefore, it should be planned carefullyand conducted periodically with proper coordination and communication among all parties involved4.
The other options are not as effective as full interruption testing in demonstrating that an effective DRP is in place. Frequent testing of backups is only one aspect of checklist testing, which does not cover other components or scenarios of the DRP4. Annual walk-through testing is only atheoretical review of the DRP, which does not test its practical implementation or outcomes4. Periodic risk assessment is only a preparatory step for developing or updating the DRP, which does not test its functionality or performance4.
References: 2: Best Practices For Disaster Recovery Testing | Snyk 3: Disaster Recovery Plan (DR) Testing
- Methods and Must-haves -US Signal 4: Disaster Recovery Testing: What You Need toKnow - Enterprise Storage Forum 5: Disaster Recovery Testing Best Practices - MSP360 1: How to Test a Disaster Recovery Plan - Abacus
To ensure that a DRP is effective, it should betested regularly and thoroughly to identify and resolve any issues or gaps that might hinder itsexecution2345. Testing a DRP can help evaluate its feasibility, validity, reliability, and compatibility with the organization's environment and needs4. Testing can also help prepare the staff, stakeholders, and vendors involved in the DRP for their roles and responsibilities during a disaster3.
There are different methods and levels of testing a DRP, depending on the scope, complexity, and objectives of the test4. Some of the common testing methods are:
* Walkthrough testing: This is a step-by-step review of the DRP by the disaster recovery team and relevant stakeholders. It aims to verify the completeness and accuracy of the plan, as well as to clarify any doubts or questions among the participants45.
* Simulation testing: This is a mock exercise of the DRP in a simulated disaster scenario. It aims to assess the readiness and effectiveness of the plan, as well as to identify any challenges or weaknesses that might arise during a real disaster45.
* Checklist testing: This is a verification of the availability and functionality of the resources and equipment required for the DRP. It aims toensure that the backup systems, data, anddocumentation are accessible and up-to-date45.
* Full interruption testing: This is the most realistic and rigorous method of testing a DRP. It involves shutting down the primary site and activating the backup site for a certain period of time. It aims to measure the actual impact andperformance of the DRP under real conditions45.
* Parallel testing: This is a less disruptive method of testing a DRP. It involves running the backup site in parallel with the primary site without affecting the normal operations. It aims to compare and validate the results and outputs of both sites45.
Amongthese methods, full interruption testing would best demonstrate that an effectiveDRP is in place, as it provides the most accurate and comprehensive evaluation ofthe plan's capabilities and limitations4. Full interruption testing can reveal any hidden or unforeseen issues or risks that might affect the recovery process, such as data loss, system failure, compatibility problems, or human errors4. Full interruption testing can also verify that the backup site can support the critical operations and services ofthe organization without compromising its quality or security4.
However, full interruption testing also has some drawbacks, such as being costly, time-consuming, risky, and disruptive to the normaloperations4. Therefore, it should be planned carefullyand conducted periodically with proper coordination and communication among all parties involved4.
The other options are not as effective as full interruption testing in demonstrating that an effective DRP is in place. Frequent testing of backups is only one aspect of checklist testing, which does not cover other components or scenarios of the DRP4. Annual walk-through testing is only atheoretical review of the DRP, which does not test its practical implementation or outcomes4. Periodic risk assessment is only a preparatory step for developing or updating the DRP, which does not test its functionality or performance4.
References: 2: Best Practices For Disaster Recovery Testing | Snyk 3: Disaster Recovery Plan (DR) Testing
- Methods and Must-haves -US Signal 4: Disaster Recovery Testing: What You Need toKnow - Enterprise Storage Forum 5: Disaster Recovery Testing Best Practices - MSP360 1: How to Test a Disaster Recovery Plan - Abacus
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