Prasenjit Sarkar
By Prasenjit SarkarLast verified: 2026-09-29
OracleCloud ComputingPROFESSIONAL

Oracle Cloud Infrastructure 2025 Migration Architect Professional Certification: Complete Guide 2026

1Z0-1123-25

The Oracle Cloud Infrastructure 2025 Migration Architect Professional certification validates expertise in planning, designing, and executing cloud migration strategies to Oracle Cloud Infrastructure, including workload assessment, migration planning, and implementation of enterprise-scale migrations.

Free 1Z0-1123-25 Exam DumpsExam Objectives

Exam Details

Exam Code1Z0-1123-25
Duration120 min
Questions55
Passing Score68%
Exam Cost$245
ValidityCertification does not expire
Avg. Salary$135,000/yr
Official Exam Page

Resources

Everything you need to pass

Comprehensive preparation materials for your Oracle Cloud Infrastructure 2025 Migration Architect Professional exam

1Z0-1123-25 Exam Dumps

150 free practice questions with answers and explanations

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Timed Practice Exam

50 questions in 90 minutes, scored and reviewed

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Exam Objectives

Official exam domains & topic breakdown

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Study Plan

Week-by-week plan, study tips and exam-day checklist

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Free Exam Dumps

1Z0-1123-25 practice questions

150 free questions with verified answers and an explanation for every option. A sample from each bank is below; every question has its own page.

1Z0-1123-25 exam dumps (150 questions)

All 1Z0-1123-25 questions

1Z0-1123-25 Question 1

Single answer

Your organization plans to migrate a mission-critical ERP system and its 5 TB Oracle Database from the on-premises data center to Oracle Cloud Infrastructure. The business requires minimal downtime and a seamless cutover window. Which approach best satisfies these requirements for near-real-time data replication and quick switchover?

  1. A

    Use Oracle Cloud Infrastructure Database Migration to establish continuous data replication and perform a short cutover.

  2. B

    Perform a complete offline Data Pump export of the on-premises database, upload it to Object Storage, and then import into a new database instance.

  3. C

    Use a nightly file-based backup script to upload data increments to Object Storage, then restore in Oracle Cloud Infrastructure.

  4. D

    Employ physical shipment through Oracle Data Transfer Disk Service for final import before decommissioning on-premises resources.

Show answer and explanation

Correct answer: A

Explanation

In scenarios requiring near-zero downtime, continuous data replication is essential. Oracle Cloud Infrastructure Database Migration leverages streaming replication technologies to keep the target database synchronized with the operational source. This approach significantly reduces the final cutover window. Offline methods such as Data Pump exports or physical disk transfers can be effective for sizable data sets when downtime is permissible, but they are not optimal for minimal-outage migrations. Refer to OCI Database Migration documentation (docs.oracle.com/en-us/iaas/Content/database-migration/home.htm) for best practices on continuous replication and phased cutovers.

  • A. Correct.

    Correct. Oracle Cloud Infrastructure Database Migration provides continuous data replication for near-zero downtime. This approach allows you to synchronize production and cloud databases in real time, then perform a final small cutover window to avoid lengthy downtime.

  • B. Incorrect.

    Incorrect. While Data Pump exports and imports are reliable, they are offline and would require substantial downtime for a 5 TB database, as the system cannot update during the export/import process.

  • C. Incorrect.

    Incorrect. Nightly file-based backups do not ensure continuous replication. Even if the backups are incremental, you still risk missing transactions that occur between backups, making it unsuitable for minimal downtime requirements.

  • D. Incorrect.

    Incorrect. While the Data Transfer Disk Service speeds up large offline transfers, it requires shipping physical disks, which introduces extended transit time. This method is effective for cold data migrations but not ideal for near-real-time replication.

1Z0-1123-25 Question 2

Single answer

A financial services company needs to migrate a 5 TB on-premises Oracle Database to Oracle Cloud Infrastructure. The database supports mission-critical applications where downtime must be kept to an absolute minimum. The company has enough lead time to plan and a reliable network to Oracle Cloud. Which migration approach provides the least production impact while meeting the minimal downtime requirement?

  1. A

    Use Oracle Data Pump to perform a full export/import while taking the database offline

  2. B

    Implement Oracle Zero Downtime Migration (ZDM) with Oracle GoldenGate to replicate changes in near real-time

  3. C

    Perform an offline backup using the Oracle Data Transfer Appliance and restore to OCI

  4. D

    Manually copy RMAN backup sets to OCI object storage and import them with a script

Show answer and explanation

Correct answer: B

Explanation

For cloud migrations where downtime must be minimized, Oracle Zero Downtime Migration (ZDM) combined with Oracle GoldenGate replication is a recognized best practice. GoldenGate keeps the on-premises and cloud databases in sync, allowing cutover to the OCI environment with minimal disruption. Refer to Oracle� Zero Downtime Migration documentation (https://docs.oracle.com/en/solutions/oci-zdm/index.html) for implementation details and best practices.

  • A. Incorrect.

    Option 1: This involves taking the source database offline for the duration of the export/import, which can lead to significant downtime. While Data Pump is a straightforward approach, it does not meet the minimal downtime requirement for mission-critical workloads.

  • B. Correct.

    Option 2: This is correct. Oracle Zero Downtime Migration (ZDM) orchestrates the migration process, and using Oracle GoldenGate allows for near real-time replication of changes. The on-premises database remains operational during most of the migration, reducing downtime to a minimal cutover window.

  • C. Incorrect.

    Option 3: While the Oracle Data Transfer Appliance is efficient for migrating large volumes of data, it typically requires an offline approach. This does not support continuous replication or minimal downtime because you must ship data physically and then restore it in the cloud.

  • D. Incorrect.

    Option 4: Manually copying RMAN backups to OCI object storage can work but introduces more steps and potential manual errors. It also requires downtime while the production database is backed up and restored, which is not optimal for mission-critical services demanding minimal downtime.

1Z0-1123-25 Question 3

Single answer

Your organization is migrating a mission-critical on-premises Oracle Database to Oracle Cloud Infrastructure (OCI). The business demands near-zero downtime to avoid revenue loss, and you must maintain data consistency throughout the transition. Which migration strategy best fulfills these requirements?

  1. A

    Perform a one-time, big-bang cutover during off-peak hours to minimize impact.

  2. B

    Set up Oracle GoldenGate to replicate data in real-time before switching production to OCI.

  3. C

    Take the on-premises database offline, export the data, and import it into a new instance in OCI.

  4. D

    Create a full backup and restore it to OCI, then handle any subsequent data changes manually.

Show answer and explanation

Correct answer: B

Explanation

For mission-critical migrations where near-zero downtime is required, a real-time replication strategy is recommended. Oracle GoldenGate synchronizes on-premises and cloud databases continuously, allowing you to perform a final switchover with minimal impact. Refer to Oracle GoldenGate documentation in the Oracle Help Center for detailed setup guidelines and best practices.

  • A. Incorrect.

    Option 1: This one-time cutover might seem appealing, but if the environment is mission-critical, any downtime can impact business operations. Even during off-peak hours, a 'big-bang' approach risks extended outages if unexpected issues arise.

  • B. Correct.

    Option 2: Using Oracle GoldenGate is the most appropriate method to achieve near-zero downtime. GoldenGate can replicate changes in real-time from the on-premises database to OCI, ensuring continuous data synchronization. Once the databases are in sync, you can switch production with minimal business disruption.

  • C. Incorrect.

    Option 3: Exporting and importing the entire database while it is offline can introduce significant downtime. This approach may be suitable for smaller or less critical applications but does not meet the requirement for near-zero downtime.

  • D. Incorrect.

    Option 4: Taking full backups and manually applying updates is prone to errors and latency. It does not provide real-time replication or seamless switchover, making it unsuitable for minimizing downtime in mission-critical environments.

Exam Content

Exam Domains & Topics

Master these 4 domains to pass your exam

1

Migration Strategy and Planning

25%
2

Migration Architecture and Design

30%
3

Migration Implementation and Execution

25%
4

Post-Migration Optimization and Operations

20%

Who Should Take This Exam?

  • Cloud architects responsible for planning and executing migrations to OCI
  • IT professionals with experience in cloud infrastructure and migration projects
  • Solutions architects designing multi-cloud and hybrid cloud strategies
  • Technical consultants specializing in cloud transformation initiatives

Study Timeline

10-14 weeks

Recommended duration

01

Foundation · Weeks 1-2

Review exam objectives & core concepts

02

Deep Dive · Weeks 3-6

Study each domain with hands-on labs

03

Practice & Review · Weeks 7-8

Take practice exams & target weak areas

View Full Study Plan

Study Guide

1Z0-1123-25 Study Plan

The Oracle Cloud Infrastructure 2025 Migration Architect Professional certification validates your expertise in designing, planning, and executing large-scale cloud migrations to OCI. This professional-level certification demonstrates your ability to architect migration solutions, manage complex workload transitions, and optimize post-migration operations.

  1. Week 1-2

    OCI Fundamentals and Migration Strategy

    Build strong OCI foundation and understand migration planning methodologies

    • Review OCI core services and architecture
    • Understand migration assessment frameworks
    • Learn TCO analysis and business case development
    • Study migration wave planning techniques

  2. Week 3-4

    Network and Connectivity Architecture

    Master hybrid networking and connectivity design for migrations

    • Design VCN architecture for migrated workloads
    • Configure FastConnect and VPN solutions
    • Implement secure hybrid connectivity
    • Practice network migration scenarios

  3. Week 5-6

    Storage and Database Migration

    Learn storage and database migration strategies and tools

    • Master database migration tools (Data Guard, GoldenGate, ZDM)
    • Understand storage migration options
    • Practice database migration scenarios
    • Learn data transfer optimization techniques

  4. Week 7-8

    Compute and Application Migration

    Focus on compute instance and application migration execution

    • Use OCI Cloud Migration service hands-on
    • Practice VM and application migrations
    • Implement automated migration with Terraform
    • Learn cutover and testing procedures

  5. Week 9-10

    Security, IAM, and Compliance

    Master security architecture and compliance for migrations

    • Design IAM integration for migrated workloads
    • Implement security best practices
    • Understand compliance requirements
    • Configure encryption and key management

  6. Week 11

    Post-Migration Optimization

    Learn optimization, monitoring, and operational best practices

    • Master cost optimization tools and strategies
    • Configure monitoring and observability
    • Implement automation and orchestration
    • Practice right-sizing and performance tuning

  7. Week 12

    Practice Exams and Review

    Final review and intensive practice

    • Complete practice exams and identify weak areas
    • Review all exam domains thoroughly
    • Practice scenario-based questions
    • Final hands-on lab exercises

Study tips

Hands-On Practice

  • Use OCI Free Tier extensively to practice actual migrations
  • Create multiple small migration projects using the Cloud Migration service
  • Practice with different migration tools: Cloud Migration, Resource Manager, Terraform
  • Set up hybrid connectivity scenarios with VPN to simulate enterprise environments
  • Document your hands-on exercises as you would in real migration projects

Migration-Specific Focus

  • Study real-world migration case studies from Oracle's customer success stories
  • Understand the difference between lift-and-shift, re-platform, and refactor strategies
  • Focus heavily on database migration tools as this is critical: Data Guard, GoldenGate, ZDM
  • Learn cutover procedures and rollback strategies in detail
  • Master dependency mapping and workload assessment methodologies

Architecture and Design

  • Review OCI Architecture Center reference architectures for migration scenarios
  • Practice designing hybrid connectivity with FastConnect and VPN combinations
  • Understand security zones, compartments, and IAM policies for segregated workloads
  • Study network topologies for different migration phases (assessment, migration, production)
  • Learn how to design for high availability and disaster recovery post-migration

Cost and Performance

  • Master TCO analysis comparing on-premises to OCI costs
  • Learn cost optimization strategies: reserved capacity, auto-scaling, right-sizing
  • Understand how to use Cost Analysis and Cloud Advisor tools
  • Practice performance tuning for migrated workloads
  • Study monitoring and observability setup for post-migration optimization

Exam Preparation Strategy

  • Focus 30% of study time on Migration Architecture (highest weighted domain)
  • Create flashcards for OCI service limits and migration tool capabilities
  • Practice scenario-based questions - this is a professional-level exam
  • Review Oracle's migration best practices documentation multiple times
  • Take at least 3 full practice exams before the actual test
  • Join study groups in Oracle Learning Community to discuss complex scenarios

Exam day checklist

  • Arrive or log in 15 minutes early for online proctoring setup
  • Read each question carefully - professional exams often have multiple correct answers where you must choose the BEST option
  • For scenario-based questions, identify the key requirements (cost, performance, security) before selecting answers
  • Flag difficult questions and return to them after completing easier ones
  • Watch time management: 120 minutes for 55 questions = ~2 minutes per question
  • Eliminate obviously wrong answers first in multiple-choice questions
  • For migration strategy questions, consider the customer's priorities (minimal downtime vs. cost vs. speed)
  • Remember that OCI-specific solutions are usually preferred over generic approaches
  • If unsure between two answers, choose the one that follows OCI best practices
  • Double-check flagged questions but avoid changing answers unless you're certain - first instinct is often correct

Career

Career Opportunities

Roles and salary potential for Oracle Cloud Infrastructure 2025 Migration Architect Professional certified professionals

Related Job Titles

Cloud Migration ArchitectCloud Solutions ArchitectOCI Migration SpecialistEnterprise Cloud Architect

$135,000

Average Annual Salary

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Prerequisites

Oracle Cloud Infrastructure 2025 Architect Associate certification recommended Hands-on experience with OCI services and migration tools Understanding of on-premises and cloud infrastructure architectures Familiarity with migration methodologies and best practices

FAQ

Oracle Cloud Infrastructure 2025 Migration Architect Professional FAQs

Common questions about the 1Z0-1123-25 certification exam

This professional-level certification validates your expertise in planning, designing, and executing complex cloud migrations to Oracle Cloud Infrastructure. It demonstrates your ability to assess workloads, design migration architectures, implement migration strategies, and optimize post-migration environments for enterprise organizations.

The exam is considered challenging and requires extensive hands-on experience with OCI migration projects. It tests both theoretical knowledge and practical application of migration methodologies, tools, and best practices. Candidates should have real-world experience with cloud migrations and understand various migration patterns and strategies.

Professionals holding the Oracle Cloud Infrastructure Migration Architect Professional certification can expect average salaries ranging from $120,000 to $150,000 annually in the United States, with senior roles and those in major metropolitan areas commanding higher compensation. The certification demonstrates specialized expertise that is highly valued in cloud transformation projects.

While not mandatory, Oracle strongly recommends obtaining the Oracle Cloud Infrastructure 2025 Architect Associate certification first. This ensures you have foundational knowledge of OCI services and architecture principles before tackling the more advanced migration-specific content.

You should have hands-on experience with OCI migration tools including Oracle Cloud Infrastructure Resource Manager, Database Migration Service, Application Migration services, networking components like FastConnect and VPN, and various third-party migration tools integrated with OCI.

About the Oracle Cloud Infrastructure 2025 Migration Architect Professional Certification

The Oracle Cloud Infrastructure 2025 Migration Architect Professional (1Z0-1123-25) is a professional-level certification offered by Oracle. This certification validates your expertise in cloud computing and is recognized globally by employers seeking qualified professionals. The exam consists of 55 questions to be completed in 120 minutes, with a passing score of 68%. The exam fee is $245, and the certification is valid for Certification does not expire.

Why Get Oracle Cloud Infrastructure 2025 Migration Architect Professional Certified?

  • Career Advancement: Certified professionals earn an average of $135,000 per year. Oracle-certified professionals are among the most sought-after in the cloud computing industry.
  • Industry Recognition: Oracle certifications are respected worldwide by employers, demonstrating verified competency in cloud computing technologies and practices.
  • Skill Validation: The Oracle Cloud Infrastructure 2025 Migration Architect Professional exam rigorously tests your knowledge across 4 domains, ensuring you have the practical skills employers demand.

Oracle Cloud Infrastructure 2025 Migration Architect Professional Exam Format & Details

The 1Z0-1123-25 exam is designed to test both theoretical knowledge and practical application. Candidates are given 120 minutes to complete the exam, which contains approximately 55 questions. A score of 68% is required to pass. As a professional-level exam, it requires significant hands-on experience and deep technical knowledge. Prerequisites include: Oracle Cloud Infrastructure 2025 Architect Associate certification recommended Hands-on experience with OCI services and migration tools Understanding of on-premises and cloud infrastructure architectures Familiarity with migration methodologies and best practices.

Exam Domains & Topics

The Oracle Cloud Infrastructure 2025 Migration Architect Professional exam covers 4 key domains. Understanding the weight of each domain helps you allocate your study time effectively:

  • Migration Strategy and Planning (25% of exam)
  • Migration Architecture and Design (30% of exam)
  • Migration Implementation and Execution (25% of exam)
  • Post-Migration Optimization and Operations (20% of exam)

Who Should Take the Oracle Cloud Infrastructure 2025 Migration Architect Professional Exam?

This certification is designed for professionals in the following roles:

  • Cloud architects responsible for planning and executing migrations to OCI
  • IT professionals with experience in cloud infrastructure and migration projects
  • Solutions architects designing multi-cloud and hybrid cloud strategies
  • Technical consultants specializing in cloud transformation initiatives

Career Opportunities & Salary

Earning the Oracle Cloud Infrastructure 2025 Migration Architect Professional certification opens doors to roles such as Cloud Migration Architect, Cloud Solutions Architect, OCI Migration Specialist, Enterprise Cloud Architect. Certified professionals earn an average salary of $135,000 per year, reflecting the high demand for cloud computing skills in today's job market.

Recertification & Renewal

The Oracle Cloud Infrastructure 2025 Migration Architect Professional certification is valid for Certification does not expire. To maintain your credential, you will need to meet Oracle's renewal requirements before your certification expires. This may include earning continuing education credits, passing a recertification exam, or earning a higher-level certification.

Exam Registration & Cost

The 1Z0-1123-25 exam costs $245. You can register through Oracle's official website or an authorized testing center. Most candidates choose between in-person testing at a Pearson VUE or PSI center and online proctored exams taken from home. Be sure to review the exam policies, including identification requirements and prohibited items, before your test date.

How to Prepare for 1Z0-1123-25

We recommend 10-14 weeks of dedicated study time to prepare for the Oracle Cloud Infrastructure 2025 Migration Architect Professional exam. Start by reviewing the official exam objectives, then work through each domain systematically. Regular practice with exam-style questions is essential for building confidence and identifying weak areas. Combine reading with hands-on practice to develop both theoretical knowledge and practical skills.

HydraNode publishes 150 free 1Z0-1123-25 practice questions with answers and explanations, plus a timed practice exam drawn from the same bank. Every question is written to the published objectives, so what you practise matches the format and difficulty of the actual 1Z0-1123-25 exam.