OCI 1Z0-1123-25 exam guide covering assessments, landing zones, cutover planning, and workload movement decisions.
1Z0-1123-25 is a sequencing-and-cutover exam. Strong answers usually come from choosing the right migration path, dependency order, and connectivity model instead of focusing only on the destination service.
Cutover: The planned point where production traffic or operational responsibility shifts from the old environment to the new one.
Staging: A temporary holding or preparation step used before the final workload move or production switch.
What this guide emphasizes
migration planning, dependency mapping, and cutover reasoning
connectivity choices such as VCN design and FastConnect
database migration and transfer-tool boundaries
common exam traps around sequencing, rollback, and data movement assumptions
What strong answers usually do
identify whether the issue is connectivity, data transfer, database migration, or cutover control
choose the least disruptive path that still meets scale and downtime constraints
separate preparation, transfer, validation, and cutover as distinct phases
prefer answers that preserve rollback options and operational visibility