Reference
Reference

OCI 2025 Migration Architect Professional (1Z0-1123-25)

Exam Logistics

Detail Value
Exam Number 1Z0-1123-25
Full Name Oracle Cloud Infrastructure 2025 Migration Architect Professional
Questions 50 (multiple choice, single and multi-select)
Time Limit 90 minutes
Passing Score 68%
Fee $245 USD per attempt
Delivery Pearson VUE (online proctored or testing center)
Retake Policy 14-day mandatory wait between attempts
Certification Validity 2 years from passing date
Released February 10, 2026

What Changed in 2025

The 2025 version (1Z0-1123-25) replaces 1Z0-1123-24. Oracle refreshes exam content annually to reflect current OCI service capabilities. While no official changelog exists, the 2025 version likely incorporates:

  • Updates to Oracle Cloud Migrations (OCM) service features released in 2025
  • Full Stack DR service enhancements
  • OKE and OCVS capability updates
  • Current OCI Database Migration Service (DMS) functionality

Domain Study Guides

Domain Weight Questions Study Guide
1. Fundamentals of Cloud Migrations 10% ~5 Domain 1 Study Guide
2. OCI Networking Services for Migrations 5% ~3 Domain 2 Study Guide
3. Oracle Cloud Migrations Service 25% ~13 Domain 3 Study Guide
4. Oracle Cloud VMware Solution (OCVS) 15% ~8 Domain 4 Study Guide
5. Containerized Applications to OCI 10% ~5 Domain 5 Study Guide
6. Infrastructure Between OCI Regions 15% ~8 Domain 6 Study Guide
7. Oracle Databases to OCI 20% ~10 Domain 7 Study Guide

Study Strategy

Time Allocation by Domain Weight

With 50 questions and a 68% passing threshold, you need at least 34 correct answers. Prioritize study time proportional to domain weight, but front-load the two heaviest domains:

Priority Domain Weight Recommended Study Time
1 Domain 3: Cloud Migrations Service 25% 25-30% of study time
2 Domain 7: Database Migration 20% 20-25% of study time
3 Domain 4: OCVS 15% 15% of study time
4 Domain 6: Cross-Region 15% 15% of study time
5 Domain 1: Fundamentals 10% 8% of study time
6 Domain 5: Containers 10% 8% of study time
7 Domain 2: Networking 5% 5% of study time

Study Approach

  1. Start with Domain 1 (Fundamentals) to build the conceptual foundation — migration strategies, assessment methodology, and the 7 Rs framework
  2. Study Domain 3 (OCM) thoroughly — it is the single largest domain and covers the most OCI-specific tooling
  3. Study Domain 7 (Database) next — this has the widest variety of migration methods to memorize
  4. Cover Domains 4 and 6 — OCVS and cross-region each carry 15% and have distinct service-specific knowledge
  5. Finish with Domains 2 and 5 — networking and containers are the lightest domains

Key Distinctions to Master

The exam tests your ability to choose the right migration approach for a given scenario. Master these decision points:

  • OCM vs. OCVS: OCM migrates to native OCI compute; OCVS maintains the VMware stack on OCI
  • Data Guard vs. GoldenGate: Data Guard for physical standby migration with brief switchover downtime; GoldenGate for zero-downtime logical replication
  • RMAN vs. Data Pump: RMAN is physical (block-level); Data Pump is logical (object-level). Only Data Pump works with Autonomous Database
  • DMS vs. ZDM: DMS is a managed OCI service; ZDM is an on-premises tool. Different workflows, different targets
  • Block Volume vs. Object Storage vs. File Storage replication: Each has different RPO characteristics and cross-region behavior
  • Full Stack DR vs. manual replication: Full Stack DR orchestrates entire application stacks; individual service replication handles single resources

Primary Study Materials

Tier 1: Official Oracle Resources

Tier 2: Practice Exams

Exam Registration

Register at Pearson VUE — Oracle. Choose online proctored (from home) or in-person at a testing center.

Cost Summary

Item Cost
Exam attempt $245 USD
Retake (if needed) $245 USD per attempt
Oracle Learning Path Free (OCI Learning Subscription for full access)
Practice exams (Udemy) ~$15-30 on sale
Practice exams (DBExam) Varies

References