Frequently asked questions for OCI 2025 Application Integration Professional (1Z0-1042-25): prerequisites, difficulty, what to focus on, and study strategy.
You need developer-level instincts: APIs, auth, retries, idempotency, and basic event patterns. You don’t need to build a full app, but you must reason about integration trade-offs.
API Gateway + security boundaries + event-driven reliability (retries, idempotency, failure handling).
Choosing answers that ignore operational reality: no monitoring/logging, no retry/backoff, no secrets management, or too much public exposure.