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CRISC Practice Question: Migrating its legacy on-premises applications to…
A company is migrating its legacy on-premises applications to a public cloud environment. Which risk identification technique is most appropriate for this scenario?
⚠ Common exam trap
Many candidates confuse SWOT analysis (a business strategy tool) with a technical risk identification technique, or mistakenly think control self-assessment is sufficient for identifying new risks in a fundamentally different architecture like cloud.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Threat modeling
Threat modeling is the most appropriate risk identification technique for migrating legacy on-premises applications to a public cloud environment because it systematically identifies potential security threats, vulnerabilities, and attack vectors specific to the new cloud architecture. This technique evaluates how the application's design, data flows, and trust boundaries change when moved to a cloud provider like AWS, Azure, or GCP, enabling proactive mitigation of risks such as misconfigured storage, insecure APIs, or compromised identity management.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Control self-assessment
Why it's wrong here
Control self-assessment evaluates the effectiveness of existing controls, not suitable for identifying new risks in a new environment.
- ✓
Threat modeling
Why this is correct
Threat modeling systematically identifies threats and vulnerabilities in system architecture, making it ideal for migration projects.
- ✗
SWOT analysis
Why it's wrong here
SWOT analysis is a strategic planning tool, not specific to technical risk identification in cloud migration.
- ✗
Business impact analysis (BIA)
Why it's wrong here
BIA focuses on assessing the impact of disruptions, not on identifying risks proactively.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CRISC practice question is part of Courseiva's free ISACA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CRISC exam.