Your team has been tasked with debugging a Cloud Native application developed using the following Oracle Cloud Infrastructure (OCI) services: Object Storage, Events, Functions, API Gateway, and Autonomous Database. Which of these is NOT a valid option for troubleshooting issues in OCI? (Choose the best answer.)

• A.View service metric information from the OCI Monitoring service.
• B.Configure the application to send logs to the OCI Logging service.
• C.Use OCI Service Connector Hub to configure a service connector to automatically send logs to the OCI Logging Analytics service.
• D.Trace performance issues In the Application Performance Monitoring service by enabling Function traces.
• E.Leverage OCI Cloud Guard to extract and visualize the debug logs generated by your application.

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A developer has created another version of a microservice and wants 10% of the traffic to flow towards it for testing purposes. The application is already configured using OCI (Oracle Cloud Infrastructure) Service Mesh. Which of the following steps is the right approach to achieve this goal?

• A.Create a new entry in the routeRules field of the virtual service route table manifest to configure traffic splitting between the old and new versions of the microservice and set the percentage to 10%.
• B.Create a new entry in the routeRules field of the ingress gateway route table manifest to configure traffic splitting between the old and new versions of the microservice and set the percentage to 10%.
• C.Create a new Kubernetes deployment for the new version of the microservice and set the traffic splitting percentage to 10% in the Kubernetes service manifest.
• D.Use Kubernetes HPA (Horizontal Pod Autoscaler) to scale the new version of the microservice to handle 10% of the traffic automatically.

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You have two microservices, A and B, running in production. Service A relies on APIs from service B. You want to test changes to service A without deploying all of its dependencies, which include service B. Which approach should you take to test service A?

• A.Test using API mocks.
• B.Test the APIs in private environments.
• C.Test against production APIs.
• D.There is no need to explicitly test APIs.

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Which of the following is defined as a configurable, low-latency infrastructure layer that controls the interaction between a network of microservices? (Choose the best answer.)

• A.Containers
• B.Kubernetes
• C.CI/CD Pipelines
• D.DevOps
• E.Service Mesh

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You are tasked with developing an application that requires the use of Oracle Cloud Infrastructure (OCI) APIs to POST messages to a stream in the OCI Streaming service. Which statement is incorrect? (Choose the best answer.)

• A.The Content-Type header must be set to application/json
• B.The request must include an authorization signing string including (but not limited to) x-content-sha256, content-type, and content-length headers.
• C.The request does not require an Authorization header.
• D.An HTTP 401 will be returned if the client's clock is skewed more than 5 minutes from the server's.

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