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.
Explore other Oracle certifications: view all Oracle exams.
Strengthen your preparation with up-to-date resources from validexamdumps.com. These materials align to 1Z0-1123-25 and cover practical scenarios with clear explanations.
Visit the exam page to download the PDF, Online Practice Test, or get a bundle discount for both formats: Oracle Cloud Infrastructure 2025 Migration Architect Professional.
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 plan to use Oracle Zero Downtime Migration to perform offline or online migration of Oracle databases, where the migration method type may be Physical or Logical. Which three migration methods does Oracle Zero Downtime Migration provide?
Data Pump, Unplug and Plug Database, and Data Guard are all valid migration methods provided by Oracle Zero Downtime Migration, which allows for the migration of Oracle databases with minimal downtime.
=================
As a migrations architect, you are explaining the workflow of Oracle Cloud Migrations (OCM) service to a business partner. After the replication of virtual machine (VM) data to Oracle Cloud Infrastructure (OCI) using OCM, what is the next step to launch the migrated instance?
Deploying a Resource Manager Stack to launch the Compute instance with the replicated Block Volume is the correct next step after the replication of VM data to OCI using OCM.
Which statement accurately describes the routing mechanism within a Virtual Cloud Network (VCN) in Oracle Cloud Infrastructure (OCI)?
In Oracle Cloud Infrastructure (OCI), a subnet in a Virtual Cloud Network (VCN) is indeed associated with a single route table. This route table determines how outbound traffic from all Virtual Network Interface Cards (VNICs) within that subnet is directed, providing a centralized control mechanism for routing within the VCN.
=================
What is the primary function of the Data Transfer Utility provided by Oracle Cloud Infrastructure (OCI)?
The Data Transfer Utility is primarily used to prepare transfer disks for data shipment to Oracle's data centers.
=================
A cluster of physical servers running in an on-premises data center is configured with a total of 100 GB physical memory. The total virtual memory allocated across all the VMs running on this cluster is 200 GB. Which term describes the virtual-to-physical memory allocation ratio for this cluster?
Oversubscription occurs when the total virtual memory allocated across all VMs exceeds the total physical memory available in the cluster.
=================