OCI Migration Architect study guide
OCI Migration Architect · Work through your exam, one topic at a time.
The Oracle Cloud Infrastructure 2023 Migration Architect Professional credential appears on Oracle University's certification catalog under exam code 1Z0-1123-23. This page is an independent study guide, not an Oracle publication, and makes no claim of affiliation with Oracle or Oracle University. At the time we retrieved the official exam page it returned an HTTP 403 error and displayed only a maintenance notice reading "Our website is currently down for maintenance." Because of that, we cannot state the number of questions, the time limit, the passing score, the exam fee, the delivery format, the retake policy, or how long the credential stays valid; those fields are left blank here rather than filled from memory. The exam is aimed at architects and senior engineers who plan and lead moves of on-premises workloads into OCI, so it rewards breadth: assessment and inventory, landing-zone and network design, database and application migration methods, then cutover and steady-state operations. The OCI Migration Architect study guide has 4 sections and about 1,344 words.
01Migration Architecture and Assessment
This domain tests how you turn a business case into a defensible OCI migration plan: inventory, dependency mapping, target architecture, wave sequencing, and risk. The exam expects you to choose a migration strategy per workload and justify it with evidence, not default to rehost.
356 words, about 2 min02OCI Infrastructure and Networking Design for Migrations
This domain tests the network and compute foundation that makes a migration possible: VCN design, connectivity to on-premises, security, and landing-zone topology. Mistakes here are expensive because CIDR and routing choices are hard to change after workloads arrive.
354 words, about 2 min03Database and Application Migration to OCI
This domain tests how you move databases and application tiers with the right tool for the downtime and heterogeneity constraints. The exam expects tool selection by RTO/RPO, platform, version, and size.
326 words, about 2 min04Migration Execution, Cutover, and Operations
This domain tests the runbook discipline that turns a designed migration into a controlled event and a stable operating model. The exam focuses on cutover sequencing, validation, rollback, and day-2 operations.
308 words, about 2 min