1Z0-1123-25 Question 12
Select 2A large retail enterprise plans to migrate its on-premises e-commerce applications to Oracle Cloud Infrastructure (OCI). The CFO wants predictable costs, while the CTO insists on minimal downtime during the migration. During the initial planning phase, which two considerations are most important to address both concerns?
- A
Evaluate OCI resource sizing and capacity planning to forecast and control cloud spending.
- B
Conduct a thorough inventory of current applications and their dependencies to minimize unexpected downtime.
- C
Migrate all e-commerce applications simultaneously in one cutover window to reduce overhead.
- D
Deploy a multi-cloud architecture to shift workloads between different providers for cost savings.
- E
Develop a rollback strategy for each application in case of unforeseen issues during migration.
Show answer and explanation
Correct answers: A, B
Explanation
In early migration planning, ensuring cost predictability (through resource sizing and capacity planning) and preventing downtime (by identifying and handling application dependencies) are key. Oracle recommends assessing each workload� requirements, performance metrics, and dependencies to avoid unexpected resource overruns or service interruptions. References: OCI Best Practices for Enterprise Workloads (docs.oracle.com), Migration Planning Guidelines.
- A. Correct.
Option 1 is correct. Factoring in OCI resource sizing (e.g., compute shapes, storage tiers) early on helps predict spending, satisfies CFO concerns, and avoids over-provisioning. Proper planning includes assessing CPU, memory, and storage requirements so that you do not pay for resources you don�t need.
- B. Correct.
Option 2 is correct. Conducting a thorough application inventory and mapping out dependencies (e.g., databases, external services) reduces the risk of unplanned outages. It ensures that interdependent components are migrated in the correct order or remain temporarily connected, thus supporting the CTO� minimal downtime objective.
- C. Incorrect.
Option 3 is incorrect. Migrating everything in one cutover window can lead to unmanageable complexity and higher risk of downtime. A phased migration approach is generally recommended to reduce disruption and provide rollback points if issues arise.
- D. Incorrect.
Option 4 is incorrect. While multi-cloud strategies can offer flexibility and sometimes cost benefits, they introduce additional complexity. This is not necessarily the most direct way to address immediate cost predictability or the CTO� downtime concern in the initial planning phase.
- E. Incorrect.
Option 5 is incorrect. Although creating a rollback strategy is important, it is not the top priority specifically addressing both cost forecasting and minimal downtime in the initial phase. It becomes more essential when finalizing migration runbooks or testing pilot migrations.