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正確的なOGEA-103復習対策書｜有効的な TOGAF Enterprise Architecture Combined Part 1 and Part 2 Exam

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The Open Group TOGAF Enterprise Architecture Combined Part 1 and Part 2 Exam 認定 OGEA-103 試験問題 (Q151-Q156):

質問 # 151
What are the following activities part or?
* Initial risk assessment
* Risk mitigation and residual risk assessment
* Risk monitoring

A. Risk Management
B. Phase C
C. Security Architecture
D. Phase A

正解：A

解説：
The following activities are part of Risk Management:
Initial risk assessment
Risk mitigation and residual risk assessment
Risk monitoring
Risk Management is the process of identifying, assessing, and responding to risks that may affect the achievement of the enterprise's objectives. Risk Management involves balancing positive and negative outcomes resulting from the realization of either opportunities or threats. Reference: The TOGAF Standard | The Open Group Website, Section 3.3.3 Risk Management.

質問 # 152
Which phase of the ADM has the purpose to develop an Enterprise Architecture Capability?

A. Phase G
B. Phase A
C. Phase B
D. Preliminary Phase

正解：D

解説：
According to the TOGAF Standard, 10th Edition, the Preliminary Phase of the Architecture Development Method (ADM) has the purpose to develop an Enterprise Architecture Capability 1. An Enterprise Architecture Capability is the ability of the organization to perform the activities and tasks related to Enterprise Architecture, such as defining the scope, principles, vision, governance, and stakeholders of the architecture. The Preliminary Phase also establishes the architecture framework, the architecture repository, the architecture tools, and the architecture team 1. The other options are not correct, as they have different purposes in the ADM. Phase G: Implementation Governance has the purpose to ensure that the implementation projects conform to the target architecture 2. Phase A: Architecture Vision has the purpose to define the scope, stakeholders, business drivers, and objectives of the architecture project 3. Phase B:
Business Architecture has the purpose to describe the baseline and target business architecture, and to identify the gaps between them . References: 1: TOGAF Standard, 10th Edition, Part II: Architecture Development Method, Chapter 6: Preliminary Phase. 2: TOGAF Standard, 10th Edition, Part II: Architecture Development Method, Chapter 18: Phase G: Implementation Governance. 3: TOGAF Standard, 10th Edition, Part II:
Architecture Development Method, Chapter 12: Phase A: Architecture Vision. : TOGAF Standard, 10th Edition, Part II: Architecture Development Method, Chapter 13: Phase B: Business Architecture.

質問 # 153
Complete the sentence The Architecture Landscape is divided into levels known as__________________________.

A. Transitional Complete and incremental Architectures
B. Baseline. Transition and To Be Architectures
C. Segment Strategic and Capability Architectures
D. Gaps Plateaus, and Target Architectures

正解：C

解説：
The Architecture Landscape is divided into levels known as Segment Strategic and Capability Architectures. These levels correspond to different scopes and purposes of architectures within an enterprise. Segment Architectures are architectures that address specific business units, functions, or processes within an enterprise. Strategic Architectures are architectures that provide a high-level view of the enterprise's vision, goals, and direction. Capability Architectures are architectures that address specific business capabilities or services that span multiple segments or domains. Reference: The TOGAF Standard | The Open Group Website, Section 2.4 Architecture Repository.

質問 # 154
Consider the following ADM phases objectives.

Which phase does each objective match?

A. 1F-2G-3H-4H
B. 1H-2F-3F-4G
C. 1G-2H-3H-4F
D. 1F-2G-3G-4H

正解：B

解説：
According to the TOGAF Standard, Version 9.2, the ADM phases and their objectives are as follows1:
Preliminary Phase: To prepare and initiate the architecture development cycle, including defining the architecture framework, principles, and governance.
Phase A: Architecture Vision: To define the scope, vision, and stakeholders of the architecture initiative, and to obtain approval to proceed.
Phase B: Business Architecture: To describe the baseline and target business architecture, and to identify the gaps between them.
Phase C: Information Systems Architectures: To describe the baseline and target data and application architectures, and to identify the gaps between them.
Phase D: Technology Architecture: To describe the baseline and target technology architecture, and to identify the gaps between them.
Phase E: Opportunities and Solutions: To identify and evaluate the opportunities and solutions for implementing the target architecture, and to define the work packages and transition architectures.
Phase F: Migration Planning: To finalize the implementation and migration plan, and to ensure alignment with the enterprise portfolio and project management.
Phase G: Implementation Governance: To provide architecture oversight and guidance for the implementation projects, and to manage any architecture change requests.
Phase H: Architecture Change Management: To monitor the changes in the business and technology environment, and to assess the impact and performance of the architecture.
Requirements Management: To manage the architecture requirements throughout the ADM cycle, and to ensure alignment with the business requirements.
Based on the above definitions, we can match each objective with the corresponding phase as follows:
Objective 1: Ensure that the business value and cost of work packages and transition architectures is understood by key stakeholders. This objective is achieved in Phase H: Architecture Change Management, where the value realization and cost-benefit analysis of the architecture are performed2.
Objective 2: Ensure conformance with the Target Architecture by implementation projects. This objective is achieved in Phase F: Migration Planning, where the conformance requirements and criteria for the implementation projects are defined3.
Objective 3: Ensure that the architecture development cycle is maintained. This objective is achieved in Phase F: Migration Planning, where the architecture roadmap and iteration cycle are maintained3.
Objective 4: Ensure that the Architecture Governance Framework is executed. This objective is achieved in Phase G: Implementation Governance, where the architecture governance processes and procedures are applied to the implementation projects4.
1: The TOGAF Standard, Version 9.2, Chapter 5: Architecture Development Method (ADM)
2: The TOGAF Standard, Version 9.2, Chapter 21: Architecture Change Management
3: The TOGAF Standard, Version 9.2, Chapter 20: Migration Planning
4: The TOGAF Standard, Version 9.2, Chapter 19: Implementation Governance

質問 # 155
Please read this scenario prior to answering the question
You are employed as an Enterprise Architect, reporting to the Chief Enterprise Architect, at a technology company. The company uses the TOGAF standard as the method and guiding framework for its Enterprise Architecture (EA) practice.
The nature of the business is such that the data and the information stored on the company systems is the company's major asset and is highly confidential. The company employees travel a lot for work and need to communicate over public infrastructure. They use message encryption, secure internet connections using Virtual Private Networks (VPNs), and other standard security measures. The company has provided computer security awareness training for all its staff. However, despite good education and system security, there is still a need to rely on third-party suppliers for infrastructure and software.
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, the company could be a victim of a significant attack that could completely lock them out of their important data.
A risk assessment has been completed and the company has looked for cyber insurance that covers ransomware. The price for this insurance is very high. The CTO recently saw a survey that said 1 out of 4 businesses that paid ransoms could not get their data back, and almost the same number were able to recover the data without paying. The CTO has decided not to get cyber insurance to cover ransom payment.
The Chief Technology Officer (CTO) is the sponsor of the EA project. The practice uses an iterative approach for its architecture development. This has enabled the decision makers to gain valuable insights into the different aspects of the business.
Refer to the scenario
You have been asked to describe the steps you would take to strengthen the current architecture to improve data protection.
Based on the TOGAF standard which of the following is the best answer?

A. You would hold an Architecture Compliance Review with the scope to examine the company's ability to respond 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 business continuity and 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.
B. You would ensure that the business value and cost of continuity measures are understood by key stakeholders and would ensure that the company has in place up-to-date processes for managing change to the current Enterprise Architecture. You recommend that mitigation for a ransomware attach be addressed at the infrastructure level with specific technology controls. Changes should be made to the baseline description of the Technology Architecture. The changes should be approved by the Architecture Board and a change request approved.
C. You would contact existing suppliers for technology that could enhance the company's capabilities to detect, react, and recover from an incident. You would perform an analysis and assessment of a simulated ransomware attack to evaluate the current Enterprise Architecture's resilience and recovery capabilities. 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.
D. You would run an assessment to identify the business continuity requirements and analyze thecurrent Enterprise Architecture for gaps. You would create a change request to start a further cycle of architecture work to address changes to mitigate such an attack. You would arrange a meeting of the Architecture Board to assess and approve the change request. Once approved you would create a new Request for Architecture Work to begin an ADM cycle to implement the changes.

正解：D

解説：
The question asks:
"What steps would you take to strengthen the current architecture to improve data protection?" This requires understanding how TOGAF handles:
* Business continuity requirements
* Gap analysis in existing architecture
* Architecture change requests
* Triggering a new ADM cycle
* Governance via the Architecture Board
Option C is the only answer that aligns correctly with TOGAF's formal Architecture Change Management process (ADM Phase H) and how to progress from identifying gaps to initiating a new cycle.
# Why Option C Is Correct
# 1. Starts with identifying business continuity requirements
TOGAF Phase A and Phase B require understanding business continuity and information security requirements as part of architecture development.
# 2. Analyzes the current architecture for gaps
Gap analysis is a required step in:
* Phase B (Business Architecture)
* Phase C (Data/Application Architecture)
* Phase D (Technology Architecture)
It is also part of Architecture Change Management (Phase H) when examining existing threats or deficiencies.
# 3. Creates a Change Request
In TOGAF, if gaps or new risks require architectural enhancements, a formal Change Request is submitted.
This is a mandatory TOGAF mechanism.
# 4. Architecture Board evaluates the Change Request
The Architecture Board approves major changes before a new cycle starts - exactly as described in option C.
# 5. Initiates a new ADM cycle with a RfAW
TOGAF explicitly states:
A new or major architecture change requires a Request for Architecture Work before beginning a new ADM cycle.
Option C follows this sequencing precisely:
* Identify requirements # analyze gaps # issue change request # Architecture Board approval # create RfAW # start new ADM cycle.
This is textbook TOGAF.
# Why the Other Options Are Incorrect
A - Too narrow and focuses only on Technology Architecture
* The problem spans business continuity, data protection, and enterprise-wide readiness - not just infrastructure.
* Does not include gap analysis, stakeholder analysis, or initiating a formal ADM cycle.
* Incorrectly reduces ransomware mitigation to technology controls.
B - Architecture Compliance Review is inappropriate here
A Compliance Review is used to:
* Ensure implementation conforms to architectureNot to:
* Identify new risks
* Strengthen the architecture
* Conduct gap analysisThis option is misusing the review process.
D - Supplier-driven, not TOGAF-driven
* Involves contacting suppliers prematurely - not aligned with TOGAF's architecture-first methodology.
* Does not involve Architecture Board approval before pursuing solutions.
* Jumps into solutioning before architectural approval.
# Relevant TOGAF References
* Phase H: Architecture Change Management
* Manage changes
* Evaluate impacts
* Generate change requests
* Architecture Board Roles
* Approves Change Requests
* Governs new ADM cycles
* Request for Architecture Work
* Used to formally launch a new ADM cycle

質問 # 156
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