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1Z0-997-25 Overview — OCI 2025 Architect Professional

What 1Z0-997-25 covers: enterprise OCI architecture, multi-region DR, hybrid connectivity, advanced networking, security architecture, performance, cost, and operations.

OCI Architect Professional is a “senior architect” exam. You’re tested on choosing designs that remain safe under failure, change, and scale.

What you should be able to do

  • Architect HA/DR with clear RTO/RPO reasoning and tested recovery paths.
  • Design network segmentation, routing, and connectivity for enterprise environments.
  • Choose hybrid connectivity patterns and understand routing/security implications.
  • Apply security architecture: IAM at scale, key management, encryption, posture management.
  • Make performance and cost trade-offs that don’t compromise reliability.
  • Build operational readiness: monitoring, logging, audit, runbooks, automation.

How to prepare efficiently

  1. Use the Syllabus as your checklist.
  2. Drill scenario questions aggressively—this exam is about judgment, not memorization.
  3. Keep a “decision log” with the Cheatsheet as your reference for patterns.