2026 Actual Oracle 1z0-1084-26 Dumps, Updated Exam Questions for Guaranteed Pass

1z0-1084-26 free sample questions and answers

Oracle 1z0-1084-26 practice quiz with correct answers for search indexing.

1. Question 1

   You encounter an unexpected error when invoking Oracle Functions from your Cloud Shell session named myfunction in the myapp application. Which option will get you more information on the error?

   Afn --verbose invoke myapp myfunction
   

   Bfn --debug invoke myapp myfunction
   

   CContact Oracle support with your error message
   

   DDEBUG=1 fn invoke myapp myfunction
   

   Correct answer: D

   The option that will get you more information on the error when invoking Oracle Functions from your Cloud Shell session is: 'DEBUG=1 fn invoke myapp myfunction'. Setting the environment variable DEBUG=1 before invoking the function using the fn command allows you to enable debug mode, which provides more detailed information about the execution of the function. This can be useful for troubleshooting and understanding the root cause of the error. By using the command 'DEBUG=1 fn invoke myapp myfunction', the function invocation will be executed with debug mode enabled, and additional debug information will be displayed in the console output. This information can include stack traces, detailed error messages, and other relevant details that can help identify and resolve the issue. Using the verbose option (--verbose) or debug option (--debug) with the fn command may also provide additional information, but the specific behavior may depend on the version and configuration of the fn CLI tool. While contacting Oracle support with the error message is always an option, enabling debug mode using the DEBUG=1 environment variable provides immediate access to more detailed information and can help in diagnosing and resolving the error more efficiently.

   
   

2. Question 2

   Which statement is NOT valid regarding the design best practices for microservices?

   AResponsive microservices must return a standard response to requesting clients even when the underlying service execution fails.
   

   BBackward compatibility dictates that API updates and parameter changes must not break existing clients consuming the microservice.
   

   CFlexible communication requires all microservices to use the same synchronous protocol for both external and internal communication.
   

   DIdempotency ensures that calling a microservice multiple times with the same parameters produces the exact same outcome.
   

   Correct answer: C

   Oracle's microservices design guidance explicitly identifies responsive behavior, backward compatibility, flexible communication, and idempotency as important requirements. Flexible communication does not require every microservice to use one synchronous protocol. Oracle states that each microservice can specify the protocol used between clients and the API gateway as well as the protocol used between individual microservices. This flexibility supports loose coupling and allows synchronous or asynchronous communication where appropriate. Oracle also states that microservices should return a response even when the service fails, API changes should remain backward-compatible with existing clients, and repeated calls should produce the same outcome when idempotency is required. Consequently, option C directly contradicts Oracle's documented flexible-communication principle and is the NOT valid statement.

   
   

3. Question 3

   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 includes service B. Which approach should you take to test service A?

   ATest using a previous test version of service B.
   

   BTest using an API mock of service B.
   

   CTest using the current production version of service B.
   

   DThis is not possible because service B is a dependency.
   

   Correct answer: B

   The correct answer is: Test using an API mock of service B. To test service A without deploying all of its dependencies, including service B, you can use an API mock of service B. An API mock is a simulated version of the API that mimics the behavior of the actual service. By using an API mock, you can isolate the testing of service A and simulate the responses and behavior of service B's APIs. With an API mock, you can define the expected responses and behavior of service B's APIs, allowing you to test the integration between service A and the mocked version of service B. This approach enables you to verify the functionality of service A without relying on the availability or changes in the actual service B. By decoupling the dependencies and using an API mock, you can perform independent testing of service A, ensuring its functionality in isolation.

   
   

4. Question 4

   Which OCI CLI command generates or merges the cluster configuration file required to authorize kubectl access to an OKE cluster?

   Aoci ce cluster update-kubeconfig
   

   Boci ce cluster download-kubeconfig
   

   Coci ce cluster create-kubeconfig
   

   Doci ce cluster generate-kubeconfig
   

   Correct answer: C

   Oracle documents oci ce cluster create-kubeconfig as the OCI CLI operation used to create the Kubernetes configuration file required for access to an OKE cluster. The command accepts the cluster OCID through --cluster-id and, by default, writes or updates $HOME/.kube/config. The resulting kubeconfig contains the cluster endpoint and the OCI CLI authentication mechanism that enables kubectl to obtain authentication tokens when communicating with the Kubernetes API server. Commands named update-kubeconfig, download-kubeconfig, and generate-kubeconfig are not valid OCI CLI subcommands for this operation. Therefore, oci ce cluster create-kubeconfig is the documented command for establishing the local kubeconfig required to administer an OKE cluster through kubectl.

   
   

5. Question 5

   You are deploying a set of Java microservices to an Oracle Cloud Infrastructure Container Engine for Kubernetes cluster. You must ensure that the application design strictly adheres to the Twelve-Factor App methodology for configuration management and backing services to simplify multi-environment deployments. Which TWO design strategies must you implement to satisfy these Twelve-Factor App principles?

   AInject all environment-specific configuration values directly into the compiled application code bundle during the build phase.
   

   BExternalize configuration values by utilizing environment variables or Kubernetes ConfigMaps to override default microservice settings.
   

   CPackage each database credential and external API endpoint URL inside the application's local properties file for strict encapsulation.
   

   DTreat backing databases and message brokers as attached resources, allowing them to be swapped via configuration changes without modifying microservice code.
   

   EMaintain a single database schema instance that is shared dynamically across all environments to ensure absolute dev/prod database state parity.
   

   Correct answer: B, D

   The Twelve-Factor methodology requires configuration to be separated from application code and backing services to be treated as attached resources. Oracle's Twelve-Factor guidance specifically recommends keeping configuration outside the Docker image and supplying deployment-specific values through the environment. This allows the same application artifact to move between development, test, and production without rebuilding it. Kubernetes ConfigMaps or environment variables implement this principle effectively. The backing-services factor similarly treats databases, queues, caches, and external services as replaceable resources referenced through configuration rather than hardcoded dependencies. Consequently, switching a database or message broker should require configuration changes rather than application-code changes. Hardcoding credentials or environment-specific values violates configuration separation, while sharing one database across environments is not required for dev/prod parity. Therefore, B and D are correct. Top of Form

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