1Z0-1123-25 Question 9
Select 3You are leading a team to migrate your organization's high-volume e-commerce platform from on-premises to Oracle Cloud Infrastructure (OCI). The platform must process real-time transactions with minimal downtime and comply with strict data protection regulations. Which three fundamental actions should be included in your migration plan to ensure a successful transition to OCI?
- A
Perform a comprehensive inventory and dependency mapping of existing applications and databases before migrating
- B
Immediately migrate the largest mission-critical systems without a pilot phase to expedite the process
- C
Evaluate network connectivity, security constraints, and compliance requirements early in your planning
- D
Consolidate all workloads into a single migration event to minimize scheduling complexity
- E
Adopt a phased migration approach that includes thorough testing and optimization at each stage
Show answer and explanation
Correct answers: A, C, E
Explanation
Fundamental OCI migration best practices emphasize a clear, methodical approach: begin with a thorough assessment of existing workloads and requirements, evaluate network and security constraints early, and validate each stage in a phased rollout. This approach reduces risk, ensures regulatory compliance, and maintains minimal downtime. Refer to the official Oracle Cloud Infrastructure documentation and Architecture Center for detailed guidance on planning and executing seamless migrations.
- A. Correct.
Correct. Identifying current application dependencies and resource utilization patterns is a critical first step. This helps you design an appropriate migration strategy, minimize downtime, and account for interdependent components.
- B. Incorrect.
Incorrect. Migrating large, mission-critical systems without testing or a pilot phase can lead to unplanned outages or performance issues. Best practices encourage a phased or pilot approach to validate performance and detect potential issues early.
- C. Correct.
Correct. Understanding networking, security, and regulatory compliance requirements is essential when designing your cloud environment. Early assessment of these factors ensures your architecture aligns with organizational and industry constraints.
- D. Incorrect.
Incorrect. Consolidating everything into a single event is risky as it increases the potential impact of failures. Spreading out the migration reduces the overall risk and allows for incremental validation and rollback if needed.
- E. Correct.
Correct. A phased migration lets you test, optimize, and measure success metrics incrementally, reducing risk and maintaining availability for critical workloads.