1Z0-1123-25 Question 46
Single answerYou are leading the migration of a multi-tier on-premises environment to Oracle Cloud Infrastructure (OCI). The environment consists of hundreds of servers running various Oracle Databases, custom Java applications, and web services. Your team needs a reliable plan to capture system inventory, dependencies, and resource usage before finalizing the migration strategy. Which approach best ensures a comprehensive discovery, accurate inventory, and effective planning and assessment for this migration?
- A
Interview application owners and collect system details manually, ensuring each service is documented from memory and spreadsheets.
- B
Use an automated discovery solution to map application dependencies, gather usage metrics, and augment that data with stakeholder interviews and logs.
- C
Rely solely on network traffic logs at the firewall to infer service interconnections and approximate resource allocation.
- D
Gather monthly reports from each team's resource usage and postpone the detailed discovery process until the mid-migration phase.
Show answer and explanation
Correct answer: B
Explanation
In Oracle's recommended approach for migrating large-scale, multi-tier applications to OCI, discovery tasks should combine automated tooling for identifying dependencies, mapping resources, and gathering usage metrics with stakeholder interviews and review of system logs. This method conforms to the best practices outlined in OCI documentation and ensures minimal risk of unexpected issues during migration. Refer to Oracle� 'Migrating Workloads to OCI' documentation for detailed guidance on discovery and assessment strategies.
- A. Incorrect.
Incorrect: While interviews can be valuable, relying solely on manual gathering can lead to missing dependencies or inaccurate details, as memory and spreadsheets are prone to errors and omissions.
- B. Correct.
Correct: Combining automated discovery tools with stakeholder input and application logs provides both broad coverage of technical dependencies and valuable contextual insights, leading to a more accurate and complete inventory and assessment.
- C. Incorrect.
Incorrect: Network logs alone offer an incomplete view of resource utilization and may not capture all internal dependencies or scheduled processes. This approach risks overlooking hidden dependencies or underutilized but critical systems.
- D. Incorrect.
Incorrect: Delaying the discovery process until mid-migration creates a risk of unexpected dependencies, resource constraints, and cost overruns. Early and continuous discovery and assessment are essential for a smooth transition.