OGEA-103 practice question 21 of 25

Please read this scenario prior to answering the question Your role is that of a senior architect, reporting to the Chief Enterprise Architect, at a…

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Please read this scenario prior to answering the question Your role is that of a senior architect, reporting to the Chief Enterprise Architect, at a medium-sized company with 400 employees. The nature of the business is such that the data and the information stored on the company systems is their major asset and is highly confidential. The company employees travel extensively for work and must communicate over public infrastructure using message encryption, VPNs, and other standard safeguards. The company has invested in cybersecurity awareness training for all its staff. However, it is recognized that even with good education as well as system security, there is a dependency on third-parly suppliers of infrastructure and software. The company uses the TOGAF standard as the method and guiding framework for its Enterprise Architecture (EA) practice. The CTO is the sponsor of the activity. The Chief Security Officer (CSO) has noted an increase in ransomware (malicious software used in ransom demands) attacks on companies with a similar profile. The CSO recognizes that no matter how much is spent on education, and support, it is likely just a matter of time before the company suffers a significant attack that could completely lock them out of their information assets. A risk assessment has been done and the company has sought cyber insurance that includes ransomware coverage. The quotation for this insurance is hugely expensive. The CTO has recently read a survey that stated that one in four organizations paying ransoms were still unable to recover their data, while nearly as many were able to recover the data without paying a ransom. The CTO has concluded that taking out cyber insurance in case they need to pay a ransom is not an option. Refer to the scenario You have been asked to describe the steps you would take to improve the resilience of the current architecture? Based on the TOGAF standard which of the following is the best answer?
Answer options
A: You would determine business continuity requirements, and undertake a gap analysis of the current Enterprise Architecture. You would make recommendations for change requirements to address the situation and create a change request. You would manage a meeting of the Architecture Board to assess and approve the change request. Once approved you would produce a new Request for Architecture Work to activate an ADM cycle to carry out a project to define the change. Correct answer
B: You would monitor for technology changes from your existing suppliers that could improve resilience. You would prepare and run a disaster recovery planning exercise for a ransomware attack and analyze the performance of the current Enterprise Architecture. Using the findings, you would prepare a gap analysis of the current Enterprise Architecture. You would prepare change requests to address identified gaps. You would add the changes implemented to the Architecture Repository.
C: You would ensure that the company has in place up-to-date processes for managing change to the current Enterprise Architecture. Based on the scope of the concerns raised you recommend that this be managed at the infrastructure level. Changes should be made to the baselinedescription of the Technology Architecture. The changes should be approved by the Architecture Board and implemented by change management techniques.
D: You would request an Architecture Compliance Review with the scope to examine the company's resilience to ransomware attacks. You would identify the departments involved and have them nominate representatives. You would then tailor checklists to address the requirement for increased resilience. You would circulate to the nominated representatives for them to complete. You would then review the completed checklists, identifying and resolving issues. You would then determine and present your recommendations.
Correct Answer:
A. You would determine business continuity requirements, and undertake a gap analysis of the current Enterprise Architecture. You would make recommendations for change requirements to address the situation and create a change request. You would manage a meeting of the Architecture Board to assess and approve the change request. Once approved you would produce a new Request for Architecture Work to activate an ADM cycle to carry out a project to define the change.
Explanation

According to TOGAF Phase H (Architecture Change Management), when a significant change is required (such as improving enterprise-wide resilience against ransomware), the architect should determine change requirements, conduct a gap analysis, and create a change request. This request must be assessed and approved by the Architecture Board. Once approved, a new Request for Architecture Work is generated to activate a new ADM cycle to properly define and implement the change across all architecture domains.

Why Incorrect

B: It bypasses the Architecture Board's governance and the formal activation of a new ADM cycle, which are mandatory for significant enterprise-wide changes. C: It incorrectly restricts the scope to the infrastructure level (Technology Architecture), ignoring the critical Business, Data, and Application impacts of ransomware. D: Architecture Compliance Reviews are used to ensure implementation projects comply with the defined architecture, not to redesign or improve the current architecture itself.

References

- The Open Group. (2022). The TOGAF® Standard

10th Edition - Architecture Development Method. Phase H: Architecture Change Management

Sections 15.4.5 (Develop Change Requirements to Meet Performance Targets)

15.4.6 (Manage Governance Process)

and 15.4.7 (Activate the Process to Implement Change).

- The Open Group. (2022). The TOGAF® Standard

10th Edition - Enterprise Architecture Capability. Section 5.2 (Architecture Board).

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