Oracle Cloud Infrastructure Developer Professional (1Z0-1084-26) - Practice Exam 1

1. A cache is introduced for product descriptions. What should the developer define before relying on it?
2. A checkout API calls inventory, payment, and shipping synchronously. One slow downstream service exhausts its request workers. Which design best limits the cascading failure?
3. A client must upload a large object and recover efficiently from interrupted transfers. Which feature should be evaluated?
4. A client retries a payment request after a timeout. The first attempt may already have succeeded. What should the API support?
5. A cloud-native worker may be terminated at any time. Which design makes processing more resilient?
6. A compute-hosted application needs read access to one application's objects. Which authorization design best follows least privilege?
7. A container requires runtime configuration that differs by environment. Which approach is appropriate?
8. A container runs locally but repeatedly restarts in OKE. What is a useful initial investigation?
9. A container's startup takes longer than its liveness threshold and it is restarted repeatedly before initialization finishes. What should be evaluated?
10. A Deployment needs three interchangeable application replicas behind a stable network endpoint. Which Kubernetes objects fit?
11. A developer logs complete access tokens while diagnosing requests. What is the appropriate correction?
12. A developer needs short-lived event-driven code without managing guest operating-system patching. Which OCI service is a direct fit?
13. A developer needs to diagnose an infrastructure policy change that broke a service. Which record complements application logs?
14. A developer rotates a secret used by multiple services. What is required for a successful rollout?
15. A downstream API returns retryable throttling responses. Which retry policy is most appropriate?
16. A function must read a secret from OCI Vault. Which identity pattern should be evaluated?
17. A function receives duplicate events from an upstream workflow. What must its handler ensure for a nonrepeatable business action?
18. A function writes data only to its local temporary filesystem and expects another invocation to read it later. What is the design flaw?
19. A function's first request after inactivity is slower than subsequent requests. What should the team evaluate?
20. A gateway returns a successful authorization result but the backend function invocation fails with access denied. What should be investigated?
21. A new release increases the 99th-percentile latency while average latency changes little. What should the developer conclude?
22. A new release must use the exact container image tested in staging. What should its OKE manifest reference?
23. A new service version adds an optional response field. Which consumer design best supports safe evolution?
24. A pod is killed when its memory usage exceeds the configured limit. What should the developer inspect?
25. A poison message fails repeatedly while healthy messages continue arriving. Which capability helps isolate it?
26. A public API must limit abusive traffic. Which design is appropriate?
27. A Queue consumer successfully receives a message. What should happen before deleting it after business processing?
28. A Queue worker takes longer than the visibility timeout to process a message. What should the developer consider?
29. A request traverses API Gateway, a function, and a database call. What should propagate to support end-to-end diagnosis?
30. A service intermittently returns failures only for one downstream dependency. Which telemetry helps isolate the cause?
31. A service needs to accept bursts of work while workers process at a controlled rate. Which pattern fits?
32. A service returns a customer's records based only on a caller-supplied customer ID. What security check is missing?
33. A service uses a customer-supplied URL to fetch documents. What should its security design prevent?
34. A stream consumer crashes after processing an event but before checkpointing. What must downstream processing tolerate?
35. A streaming application requires ordered handling for records sharing one business key. Which design is most relevant?
36. A team requires OKE virtual nodes and managed add-on lifecycle features. Which cluster category should it evaluate?
37. A team wants a managed HTTPS frontend that routes requests to backend services and applies API policies. Which OCI service should it evaluate?
38. A team wants to deploy small services independently. Which contract practice supports that goal?
39. A user needs temporary access to a specific object without receiving an OCI API signing key. Which capability may fit if carefully scoped and governed?
40. An API uses JWT authentication. Which validation is necessary before trusting its identity claims?
41. An application is being split into services with independent data ownership. How should cross-service consistency be designed?
42. An application pod writes its only durable business data to the container writable layer. What risk exists?
43. An application processes an object-created event and then reads the object. Which design best handles delivery retries and concurrent updates?
44. An application updates shared Object Storage metadata and must detect conflicting writes. Which mechanism should be evaluated?
45. An external API dependency returns a potentially sensitive error response. What should the application expose to users?
46. An OKE application must stop receiving traffic until its dependencies are ready. Which probe is most directly relevant?
47. An SDK call returns an authorization error. Which investigation should precede retrying indefinitely?
48. Browser clients call a protected API from another origin and encounter CORS failures. What should the developer configure?
49. Multiple independent applications need to consume the same retained event stream at their own pace. What should the design provide?
50. OKE pods need OCI service access without storing a shared human API key. Which design should be evaluated for eligible workloads?

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