1Z0-1123-25 Exam Guide: OCI Migration Architect Professional Preparation and Planning
1Z0-1123-25 validates the migration-architecture knowledge associated with Oracle’s OCI Migration Architect Professional credential, including workload movement from on-premises environments and AWS into OCI. It is aimed at cloud architects, IT professionals, and others responsible for migration work. This guide helps you decide whether the official learning path matches your experience, which technical areas to study first, how to use the available lab material, and what to verify with Oracle before scheduling an exam attempt.
What does 1Z0-1123-25 validate?
1Z0-1123-25 is the exam Oracle identifies for the OCI 2025 Migration Architect credential. The subject is not limited to a single migration tool or one source platform: the associated material addresses planning and executing workload migrations to OCI, including AWS-to-OCI scenarios, database migration, networking, containers, VMware environments, and movement between OCI regions.
Oracle’s announcement specifically identifies migration from AWS to OCI as an addition to the 2025 certification. That material includes migrating AWS EC2 instances to OCI Compute with Oracle Cloud Migrations. It also covers asset discovery, planning, replication, launch, and post-migration validation workflows.
The practical implication is that preparation should focus on architectural decisions and migration sequencing rather than memorizing isolated service names. A candidate should be able to examine a source workload, identify dependencies and constraints, select an appropriate OCI target, plan connectivity and data movement, and evaluate whether the migrated workload is ready for handover or further remediation.
The credential name may appear differently in newer Oracle material
Oracle’s 2026 OCI certification update states that certification titles and logos no longer include calendar years beginning with that release. The exam identifier remains the useful reference when you are matching this guide to Oracle training material, but candidates should confirm the current credential title and exam listing on Oracle’s official certification pages before purchasing or scheduling anything.
Who should consider this exam?
The intended audience includes cloud architects, IT professionals, and other people involved in migrating workloads to OCI. The strongest starting point is someone who can already reason about infrastructure, application dependencies, data movement, security boundaries, and operational continuity. The exam is a poor fit for a candidate who has only learned OCI product definitions without understanding migration planning.
Oracle recommends that candidates understand on-premises VMware-based environments and on-premises database deployments. Treat those recommendations as readiness signals, not as a claim that every candidate must hold a particular prerequisite certification. The supplied official material does not establish a mandatory prerequisite, years of experience requirement, or specific job title.
You can still use the learning path to build missing knowledge, but the study plan should change according to your baseline. A VMware administrator may need more time on OCI networking and AWS service mapping. An OCI engineer may need to strengthen source-environment assessment, database migration choices, and the operational steps required before and after cutover.
A quick readiness test
Before committing to a schedule, write a short migration design for a hypothetical workload without consulting notes. Identify the source platform, application dependencies, network path, data-transfer method, target OCI services, rollback concern, validation checks, and post-migration operating tasks. If you cannot explain why each decision was made, begin with the official learning path rather than exam-focused revision.
When the exam may not be your immediate priority
If your current work is limited to creating OCI resources or administering a single service, first build broader migration context. The official course includes several migration patterns, so a narrow service-specialist study approach can leave important gaps. Likewise, if you have no experience with VMware or database deployments, allow time for foundational study before relying on rapid review.
Which technical skills should preparation cover?
Preparation should connect five types of work: assessing the source estate, designing secure OCI connectivity, selecting and configuring a migration path, validating the destination, and operating the result. Oracle’s course description provides the clearest scope for this study sequence, while the certification announcement adds AWS-specific mapping, rightsizing, cost evaluation, and end-to-end migration workflows.
The course covers planning and executing workload migrations from on-premises environments to OCI. It also covers designing and configuring OCI networking for secure, high-performance migration connectivity. These are complementary skills: a sound migration plan can still fail if routing, security controls, bandwidth, name resolution, or access paths are not designed for the transfer and cutover.
Oracle’s course includes Oracle-database migration to OCI using practices intended to support high availability, security, and integration. It also includes migrating workloads to OCI and Oracle Cloud VMware Solution, moving containerized applications to OCI Container Engine for Kubernetes, and transferring workloads between OCI regions. Study each pattern as a decision problem, not as a disconnected product tour.
Source assessment and migration planning
Start by documenting what must be discovered before a target design is approved. For servers, consider compute characteristics, attached storage, operating-system constraints, dependencies, traffic flows, and business criticality. For databases, include deployment context, availability needs, security requirements, integration points, and the conditions that would make a direct move unsuitable.
The AWS material explicitly includes asset discovery and planning. Practice turning discovery results into a migration wave: group workloads by dependency and business risk, identify prerequisites, define replication or transfer steps, and state the evidence required before launch. Do not treat “move everything” as a migration plan; it hides sequencing and rollback decisions.
AWS-to-OCI service mapping
Oracle says candidates learn to map AWS EC2 instances and EBS volumes to OCI equivalents. Study the mapping as an evaluation exercise. Ask which characteristics must be preserved, which can be redesigned, what storage behavior the workload requires, and whether the initial target should be resized after observation.
Rightsizing and running-cost evaluations are also part of the AWS-to-OCI material. A useful study note should separate technical equivalence from economic evaluation: a target can be capable of hosting a workload without being the right size or cost profile. Record the evidence you would need before recommending a final shape or storage configuration.
Replication, launch, and validation
Oracle identifies replication, launch, and post-migration validation as part of the AWS-to-OCI workflow. Prepare by writing an ordered runbook for each stage. Include what is copied, how progress is checked, when application traffic changes, how integrity is confirmed, and what happens if validation fails.
Validation should be explicit. Check application reachability, data consistency, identity and access behavior, integrations, performance against agreed expectations, monitoring, backups, and operational ownership. These are practical preparation recommendations based on the workflow scope; the supplied sources do not provide a list of exam questions or a detailed scoring rubric.
OCI networking for migration
Networking deserves early study because it affects discovery, replication, administration, cutover, and validation. The official course describes secure, high-performance migration connectivity. Build diagrams showing source networks, OCI network boundaries, routing, security controls, management access, and application traffic, then explain the purpose of every path.
Do not study networking only as a vocabulary exercise. For each migration scenario, ask what must communicate, in which direction, through which controlled path, and under what name-resolution and security assumptions. Test your design against partial failure: a migration connection that works for a small transfer may not meet the needs of a large replication window or a production cutover.
Databases, VMware, containers, and regions
The course scope requires more than a generic “server migration” model. Oracle recommends familiarity with on-premises VMware-based environments and on-premises database deployments, and the course also addresses Oracle-database migration, Oracle Cloud VMware Solution, containerized applications on OCI Container Engine for Kubernetes, and transfers between OCI regions.
Create one comparison page for each workload family. For VMware, note what must be preserved and what changes at the target. For databases, emphasize availability, security, integration, and validation. For containers, examine image, configuration, networking, secrets, persistence, and service dependencies. For regional movement, document replication direction, destination readiness, and application cutover considerations.
What official preparation resources are available?
Oracle’s official learning path is the natural starting point because it is specifically named for becoming an OCI Migration Architect Professional. The path is listed as providing more than 11 hours of expert training and eight skill checks. The associated course is listed as 11 hours and 18 minutes long. Use those figures to estimate content volume, not to assume that completion alone demonstrates readiness.
The learning path page states that the OCI Migration Architect Professional (2025) path will be archived on September 30, 2026. That makes resource planning important for anyone preparing against the 2025 material. Confirm the current availability and any replacement learning experience directly in Oracle MyLearn before building a long study schedule.
Oracle’s certification-cost article dated August 6, 2025 listed OCI Migration Architect Professional among core OCI certifications with an exam attempt cost of US$245 and stated that the learning path was free. Because cost and purchasing policies can change, treat that as a dated official reference and verify the current amount, currency, retake conditions, and purchase process before payment.
How to use the learning path efficiently
Do not simply play every lesson from beginning to end and postpone recall until the last day. First scan the path and create a scope checklist. Then study one migration pattern, produce a design artifact, complete the associated skill check, and record the reason for each wrong or uncertain answer.
Use the skill checks diagnostically. A missed item should lead to a targeted review of the underlying architecture, not repeated guessing. Keep a distinction between “I recognize this term” and “I can select and defend a design under constraints.” The latter is the more useful standard for an architect-oriented exam.
How to use the official lab material
The official course page describes lab scheduling and access procedures, including a requirement to schedule lab time before using the lab. It also provides system-testing and support instructions. Treat lab availability as something to arrange early, because a late request may leave no convenient practice window.
The page states that lab environments can be extended for another 6 days and that the environment may be unavailable when all lab resources are in use. Those details are course-environment instructions, not exam delivery promises. Check the live course page for current scheduling rules, access times, support routes, and availability.
Use the lab to confirm a design, not to click through without a hypothesis. Before starting, write the expected network path, target resources, migration sequence, and validation result. During the lab, note which assumptions were wrong. Afterward, explain what you would change for a production workload with stricter security, availability, or rollback requirements.
What exam delivery details are confirmed?
The supplied official research identifies the exam code and subject scope but does not provide verified details for exam duration, question count, question types, passing score, languages, delivery method, or retake policy. Do not use third-party pages or “dumps” as evidence for those details. Check Oracle’s current exam page and scheduling workflow for the terms that apply when you are ready to book.
The Oracle course page includes technical requirements for online training and labs, including supported operating systems, browsers, connectivity testing, and lab support. Those instructions should not be mistaken for confirmed exam-proctoring requirements. Course access and exam delivery are separate decisions.
Before scheduling, verify the current credential name, exam code, availability, price, delivery options, identification rules, rescheduling terms, and any current Oracle policy notices. Save the official page you used and recheck it if you delay the appointment. This is a practical recommendation because the supplied snapshot does not establish those time-sensitive details.
Why exam dumps are a bad preparation substitute
Dumpsboss.co readers may encounter pages promising recalled questions or guaranteed success, but unauthorized exam content is not a reliable study plan. It can be inaccurate, outdated, incomplete, or inconsistent with Oracle’s current objectives. Memorizing answer patterns does not build the migration reasoning needed to assess dependencies, connectivity, target architecture, cutover, and validation.
Use practice questions only when they test original scenarios and explain the underlying decision. Never seek leaked questions, copy protected content, or treat a passing claim as evidence of readiness. A better test is whether you can defend a migration design when the source platform, availability requirement, or dependency pattern changes.
How should you study if you have limited OCI experience?
Build the study sequence around dependency order: migration foundations first, target OCI architecture next, workload-specific patterns after that, and integrated design review last. This prevents a common mistake—trying to memorize migration services before understanding what the source workload needs and what “ready to cut over” means.
Begin with the official learning path and course description. Mark every topic that is unfamiliar, then use the course explanations and labs to close those gaps. If the lab exposes missing basics in networking, databases, VMware, or containers, pause the migration runbook and learn the prerequisite concept before continuing.
A practical four-stage sequence
Stage one is source analysis. Practice inventorying servers, storage, databases, applications, dependencies, and business constraints. For AWS scenarios, include EC2 and EBS mapping, discovery, rightsizing, and cost evaluation. Your output should be a migration inventory with assumptions and unresolved questions.
Stage two is target and connectivity design. Draw the OCI landing structure, network paths, security controls, management access, and required integrations. Explain why the design supports the transfer and the eventual workload, rather than treating migration connectivity as a temporary detail that can be ignored.
Stage three is execution. Write a runbook covering preparation, replication or transfer, launch, cutover, and rollback or remediation decisions. Create separate notes for Oracle databases, VMware workloads, containerized applications, and region-to-region movement because their operational concerns are not identical.
Stage four is validation and review. Rehearse post-migration checks, compare the result with the original requirements, and identify what must be handed to operations. Finish by explaining your architecture to an imaginary reviewer who asks about security, availability, performance, cost, and failure handling.
Turn passive study into decision practice
For every lesson, create one question that begins with “why.” Why is this target appropriate? Why is this network path secure? Why is replication needed? Why is the workload launched in this order? Why is the result considered validated? The questions expose whether you understand the architecture or merely remember terminology.
Use a decision log with four columns: requirement, candidate design, rejected alternative, and evidence needed. This format is particularly useful for service mapping and rightsizing. It also helps prevent overconfidence when several OCI targets appear technically possible but differ in operational suitability or cost.
What common preparation mistakes should you avoid?
The most damaging mistakes are studying only product names, ignoring the source environment, skipping network design, and treating migration completion as equivalent to migration success. The official scope spans discovery through validation, so a preparation plan that stops at provisioning a target is incomplete.
Another error is assuming that a single migration pattern applies to every workload. Oracle’s course includes databases, VMware, containers, AWS workloads, and regional transfers. Your notes should show where constraints differ and what must be tested before selecting a target or cutover approach.
Mistake: memorizing AWS and OCI names without mapping requirements
A service-name table is useful only when it includes workload characteristics and constraints. Add compute, storage, network, security, availability, management, and cost considerations. Then practice explaining why an apparent equivalent may require resizing, redesign, or additional integration work.
Mistake: treating the lab as a demonstration
Clicking through a lab once can create false confidence. Use the environment to test a planned sequence, capture the configuration logic in your own words, and repeat the parts that caused confusion. If access or scheduling fails, use Oracle’s course support process rather than assuming the issue reflects an exam requirement.
Mistake: booking before checking the current official information
The supplied snapshot does not verify current exam duration, format, languages, passing score, or delivery options. Booking based on an old third-party listing can create avoidable problems. Confirm those details with Oracle, then choose a date that leaves enough time to complete targeted review and resolve access questions.
Mistake: using cost as the only architecture criterion
Oracle’s AWS-to-OCI material includes running-cost evaluations, but cost is one part of a migration decision. Compare it with performance, availability, security, supportability, data movement, operational effort, and business timing. A study answer that selects the cheapest target without addressing requirements is not a defensible architecture.
How can you build a final-week review?
The final review should test integration rather than introduce an entirely new library of facts. Revisit your scope checklist, redo uncertain skill checks, redraw the main network patterns, and complete short migration scenarios that require a justified choice. Keep the official exam page open for administrative verification, but keep study time focused on concepts you can apply.
Do not measure readiness by the number of notes you have collected. Measure it by whether you can move from discovery to validated operation without omitting a major dependency, security control, connectivity requirement, or business constraint.
A focused review checklist
Confirm that you can explain the AWS-to-OCI workflow from asset discovery through post-migration validation. Review EC2 and EBS mapping, rightsizing, and running-cost evaluation. Rehearse OCI networking for secure, high-performance connectivity. Then compare the concerns of Oracle databases, VMware workloads, containerized applications, and OCI region transfers.
For each topic, write a concise architecture explanation without copying the course wording. Include assumptions, selection criteria, sequencing, validation evidence, and likely failure points. If an explanation depends on a fact not supported by your notes, return to the official course or Oracle documentation rather than filling the gap with an exam-dump claim.
The day-before decision
Stop adding broad topics when your remaining gaps are narrow and identifiable. Review your decision log, administrative booking information, and any permitted identification or environment requirements shown in Oracle’s current instructions. If you cannot confirm a time-sensitive exam detail from an official source, verify it before the appointment instead of relying on memory or an unofficial listing.
What should you do next?
Start by opening Oracle’s learning path and the associated course, then compare their scope with your current experience. Build a checklist for source assessment, OCI networking, workload migration, AWS mapping, database and VMware considerations, containers, regional transfers, and validation. Next, schedule lab practice early if the course currently offers it, and confirm live exam details directly with Oracle before paying or booking.
A sensible next action is to produce one complete migration design and use it to identify your weakest area. If the design fails at discovery, study source assessment. If it fails at connectivity, study OCI networking. If it reaches launch but lacks evidence of success, study validation and operational handover. This turns preparation into a sequence of decisions rather than an attempt to consume every available page.
Keep the exam identifier—1Z0-1123-25—paired with the official Oracle credential information when checking for updates. Oracle’s 2026 update says calendar years are no longer included in certification titles and logos, while the learning-path snapshot identifies an archive date for the 2025 path. Those changes make direct verification especially important when you are preparing over an extended period.
Official pages to check before scheduling
Use Oracle’s certification announcement to confirm the exam’s relationship to the credential and the AWS-to-OCI scope. Use the learning path and course pages to review training coverage and lab instructions. Use Oracle’s certification-cost article only as a dated reference, and verify the current price and purchase conditions before committing funds.
Conclusion
1Z0-1123-25 preparation is strongest when it mirrors real migration work: discover the estate, choose and justify an OCI target, design secure connectivity, execute in controlled stages, and validate the result. Use Oracle’s learning path, skill checks, and available lab environment as structured practice, not as a substitute for reasoning. Before scheduling, confirm all current administrative details with Oracle because the supplied evidence does not establish the exam format or delivery conditions.
Related exams
- 1z0-1067-24 exam — Oracle Cloud Infrastructure 2024 Cloud Operations Professional
- 1z0-1067-25 exam — Oracle Cloud Infrastructure 2026 Cloud Ops Professional
- 1z0-1084-25 exam — Oracle Cloud Infrastructure 2026 Developer Professional
- 1z0-1085-24 exam — Oracle Cloud Infrastructure 2024 Foundations Associate
- 1z0-1085-25 exam — Oracle Cloud Infrastructure 2026 Foundations Associate
- 1z0-1104-25 exam — Oracle Cloud Infrastructure 2026 Security Professional
