Oracle Cloud Infrastructure 2025 Developer Professional Practice Exam 2025: Latest Questions

A development team is deploying a containerized microservice to OCI. They want OCI to automatically scale the number of container instances based on incoming HTTP traffic and avoid managing worker nodes. Which OCI service best fits this requirement?

A team uses OCI DevOps Build Pipelines to create and push container images to OCI Artifact Registry. They want the build to authenticate to OCI in a way that avoids storing long-lived user credentials in the build config. What is the recommended approach?

An application running on OCI must publish order events and allow multiple downstream services to independently consume the same events at their own pace. Which OCI service is the best fit for this messaging pattern?

A serverless function intermittently fails. You need to quickly correlate a specific invocation with its log entries for troubleshooting. Which OCI capability is most directly used to view the function's logs for a given invocation?

A team is building an API on OCI Functions fronted by API Gateway. They need to restrict access so only callers presenting a valid JWT from an external identity provider can invoke the endpoint. Where should the JWT validation be enforced to follow best practices?

A build pipeline successfully produces an image, but the deployment to an OKE cluster fails because the cluster cannot pull the private image from OCI Artifact Registry. Which configuration is the most likely missing requirement?

An integration flow must call two downstream services. If the first call succeeds but the second fails, the system must execute a compensating action to undo the first call rather than relying on distributed transactions. Which pattern best matches this requirement in an OCI-based microservices architecture?

Users report increased latency for an API hosted on OKE. You suspect intermittent pod restarts and want to identify whether readiness/liveness probe failures are causing traffic disruption. Which OCI/Kubernetes observability approach is most appropriate to confirm this?

You are designing an event-driven pipeline where producers publish events and consumers must be able to reprocess the last 24 hours of events after a bug fix. You also need strict ordering per partition key and high throughput. Which solution best meets these requirements?

A function in a private subnet must call an OCI public service endpoint (for example, to read secrets or write logs) without traversing the public internet. Security requires that traffic stays on Oracle's network and does not require a public IP on the function. What is the recommended network design?

A developer is building a serverless API using OCI Functions. The function must read a secret (API key) at runtime without hardcoding it or storing it in a config file. Which OCI service is the best practice to store and retrieve this secret securely?

You have a microservice that processes events from a queue. To increase throughput, you scale out to multiple consumers. You must ensure that each message is processed by only one consumer. Which OCI service feature best supports this requirement?

A team wants to expose an internal HTTP endpoint privately to other resources within the same VCN without traversing the public internet. Which OCI networking component best meets this need?

A DevOps pipeline builds a container image and pushes it to OCI Container Registry (OCIR). Deployment to a Kubernetes cluster should occur only after manual approval by a release manager. Which DevOps capability best supports this requirement?

An integration flow requires transforming incoming JSON into a different JSON schema and then invoking an external REST API. The solution must be low-code and managed. Which OCI service is most appropriate?

A function is invoked by an OCI Events rule, but no invocations appear in the function metrics. The Events rule shows it is firing. Which issue is the most likely cause?

A Kubernetes-based application on OKE needs access to an OCI service (for example, Object Storage) without storing user API keys in pods. Which approach is recommended?

A message-driven system must tolerate occasional downstream outages. Producers must not block, and messages should be retried later by consumers. Which design best meets this requirement on OCI?

Your team uses OCI API Gateway in front of multiple backend services. You need to troubleshoot intermittent 5xx responses and identify whether errors originate in API Gateway or the backend. Which observability approach is most effective?

A deployment pipeline updates an OKE workload. The rollout appears successful, but users report sporadic failures for several minutes after deployment. You suspect traffic is routed to pods that are not ready. What is the best Kubernetes/OKE practice to prevent this?

A team uses OCI API Gateway in front of multiple OCI Functions. They want to protect the APIs using an existing OAuth2/OpenID Connect provider and avoid managing user credentials in OCI. Which approach is the recommended way to secure the APIs?

A microservice processes events from a queue and must ensure that, even if the service restarts, messages are not lost and each message is processed at most once. The team can tolerate occasional duplicates but cannot tolerate losing messages. Which OCI messaging service and consumption pattern best fits this requirement?

An application uses OCI Resource Principals from an OCI Function to access Object Storage. The function suddenly starts failing with "NotAuthorizedOrNotFound" when calling Object Storage APIs, but no code changes were deployed. Which is the most likely cause to investigate first?

A workflow orchestrates multiple services: it calls an external REST API, writes metadata to Autonomous Database, and then publishes a message to a stream. The team needs a serverless orchestration engine with built-in retries, timeouts, and the ability to call OCI services and HTTP endpoints without managing servers. Which OCI service is the best fit?

A team runs a containerized API on OCI Container Instances. They use a blue/green deployment strategy with two separate container instance pools behind an OCI Load Balancer. After a cutover, users intermittently see old responses for several minutes, even though the load balancer points to the green pool. Which troubleshooting action is MOST likely to identify the root cause?