OCI Developer Exam Questions and Answers

OCI Developer Exam Questions and Answers What is the open source engine for Oracle Functions? - Apache OpenWhisk - Open FaaS - Knative - Fn Project -Answer-Fn Project Which two are benefits of a distributed systems? - Privacy - Ease of testing - Resiliency - Security - Scalability -Answer-- Resiliency - Scalability You are implementing logging in your services that will be running in OCI Container Engine for Kubernetes. Which statement describes the appropriate logging approach? - Each service logs its own log file - All services log to a shared log file - All services log to an external logging system - All services log to standard output only -Answer-All services log to standard output only Which pattern can help you minimize the probability of cascading failures in your system during partial loss of connectivity or complete service failure? - Compensating transaction pattern - Anti-corruption layer pattern - Retry pattern - Circuit breaker pattern -Answer-Circuit breaker pattern Which two statements are true for service choreography? - Service choreography should not use events for communication - Service choreography is responsible for invoking other services - Service involved in choreography communicate through messages/messaging systems - Service choreography relies on a central coordinator - Decision logic in service choreography is distributed -Answer-- Service involved in choreography communicate through messages/messaging systems - Decision logic in service choreography is distributed Which two statements accurately describe Oracle SQL Developer Web OCI Autonomous Database? - After provisioning into an OCI compute instance, it can automatically connect to the OCI ADB instances - It is available for databases with both dedicated and shared Exadata infrastructure - It is available for databases with dedicated Exadata infrastructure only - It provides a development environment and a data modeler interface for OCI ADBs - It must be enabled via OCI Identity and Access Management policy to get access to the ADB instances -Answer-- It is available for databases with both dedicated and shared Exadata infrastructure - It provides a development environment and a data modeler interface for OCI ADBs Your organization uses federated identity provider to login to your OCI environment. As a developer, you are writing a script to automate some operations and want use OCI CLI to do that. Your security team doesn't allow storing private keys on local machines. How can you authenticate with OCI CLI? - Run oci session refresh - profile profile_name - Run oci setup keys and provide your credentials - Run oci setup oci-cli-rc-file path/to/target/file - Run oci session authenticate and provide your credentials -Answer-Run oci session authenticate and provide your credentials As a cloud-native developer, you have written a web service for your company. You have used OCI API Gateway service to expose the HTTP backend. However, your security team has suggested that your web service should handle Distributed Denial of Service (DDoS) attack. You are time-constrained and you need to make sure that this implemented as soon as possible. What should you do in this scenario? - Use a third party service integration to implement a DDoS attack mitigation - Use OCI VCN segregation to control DDoS - Use OCI API Gateway service to configure rate limiting - Re-write your web service and implement rate limiting -Answer-Use OCI API Gateway service to configure rate limiting You encounter an unexpected error when invoking the Oracle Function named "myfunction" in application "myapp". Which can you use to get more information on the error? - fn --debug invoke myapp myfunction