The Oracle Cloud Infrastructure 2025 Migration Architect Professional exam (1Z0-1123-25) is designed for architects and engineers who plan, design, and execute migrations to Oracle Cloud Infrastructure. This exam validates your ability to assess legacy environments, design migration strategies, and implement solutions across compute, database, and containerized workloads. This page provides a clear roadmap of exam topics, question formats, and practical preparation strategies to help you build confidence and achieve certification.
Use this topic map to guide your study for Oracle 1Z0-1123-25 (Oracle Cloud Infrastructure 2025 Migration Architect Professional) within the Oracle Cloud and Oracle Cloud Infrastructure path.
The 1Z0-1123-25 exam uses multiple question types to assess both conceptual knowledge and practical decision-making in migration scenarios. Questions progress in difficulty and reflect real-world architectural choices.
Questions emphasize practical application: designing solutions that meet performance, security, and cost objectives while managing migration risk and complexity.
Effective preparation maps study time to each topic area and includes hands-on practice with realistic scenarios. A structured approach prevents gaps and builds confidence in migration decision-making. Allocate 4-6 weeks for thorough preparation, depending on your current OCI experience.
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OCI Networking Services for Migrations, Oracle Cloud Migrations Service, and Oracle Database Services typically represent significant portions of the exam because they are core to most real-world migration projects. However, all seven topics are important; the exam balances breadth across migration approaches rather than focusing heavily on one area. Ensure you have solid foundational knowledge across all topics and deeper expertise in database and networking design.
In practice, a single migration program often uses multiple approaches. For example, you might use OCVS for existing VMware environments, OCI Migrations Service for physical servers, containerize legacy applications as part of modernization, and use Database Migration Service for Oracle databases. Understanding when to apply each approach and how they integrate is critical for the exam and real projects. Study how these methods complement each other rather than as isolated topics.
Hands-on experience significantly helps, but the exam is achievable with strong conceptual knowledge and practice questions. Prioritize labs on VCN setup and hybrid connectivity, OCI Migrations Service workflows, and OKE deployment if possible. If hands-on access is limited, focus on understanding service documentation, architecture diagrams, and scenario-based practice questions that simulate real decisions.
Frequent errors include confusing OCVS capabilities with standard OCI compute, overlooking network latency and bandwidth constraints in hybrid designs, and misunderstanding database service limits and compatibility. Candidates also sometimes choose the cheapest option rather than the best fit for stated requirements. Read questions carefully for constraints (compliance, timeline, existing tooling) and select solutions that meet all stated criteria, not just technical feasibility.
In the final week, avoid learning new topics; instead, focus on reinforcing weak areas identified in practice tests. Do a full-length timed practice test, review all incorrect answers, and create a one-page summary of key decision trees (e.g., when to use OCVS vs. native compute, database migration method selection criteria). Get adequate sleep the night before the exam and review this summary the morning of the test to prime your decision-making patterns.
You have set up cross-region replication for a block volume in the US West (Phoenix) region, choosing US West (San Jose) as the destination. Now, you want to create a new volume from the volume replica in the US West (San Jose) region. What should you do?
Activating the replica is the correct action to take in order to make the volume replica usable as a block volume in the US West (San Jose) region. This step ensures that the replica is ready for use and can be attached to instances for storage purposes.
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Where is a Disaster Recovery (DR) Plan created in the OCI Full Stack Disaster Recovery service?
The Disaster Recovery (DR) Plan is created only at the Standby DR Protection Group in the OCI Full Stack Disaster Recovery service.
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Your corporate policy does not allow storing customer data outside of your organization. As part of a consolidation drive, you plan to migrate some of your critical Oracle databases to Oracle Autonomous Database. Which deployment option would you choose?
Autonomous Database on Cloud@Customer is the correct option because it allows you to host Oracle Autonomous Database within your organization's data center, meeting the corporate policy requirements.
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How does the Copy to another region feature in Oracle Cloud Infrastructure (OCI) aid in achieving smooth transitions during Block Volume migration?
The correct choice is that the Copy to another region feature in OCI aids in achieving smooth transitions during Block Volume migration by replicating Block Volume backups to a target region. This enables a seamless data migration process without the need for manual backup and restore operations.
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A company is assessing different strategies for migrating their applications from on-premises to Oracle Cloud Infrastructure. The applications are running on virtual machines, and a business requirement has been raised to containerize all applications within the OCI environment as part of the migration process. Which migration strategy fits well with this requirement?
Migrating VMs to OCI Container Engine for Kubernetes (OKE) is the most suitable strategy for containerizing applications within the OCI environment. OKE is a managed Kubernetes service that allows for the deployment, management, and scaling of containerized applications on OCI.
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