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| Section | Weight | Objectives |
|---|---|---|
| Testing and Securing Cloud Native Applications | 13% | - OCI Vault
|
| Leveraging Serverless Technologies for Cloud Native Development | 33% | - Oracle Functions
|
| Cloud Native Applications and Containerization | 33% | - Oracle Kubernetes Engine
|
| Monitoring & Troubleshooting Cloud Native Applications | 10% | - OCI Logging
|
| Cloud Native Fundamentals | 11% | - Microservices Architecture
|
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170. Frage
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?
Antwort: C,D
Begründung:
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.
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171. Frage
You want to push a new image in the Oracle Cloud Infrastructure (OCI) Registry. Which TWO actions would you need to perform? (Choose two.)
Antwort: C,E
Begründung:
To push a new image to the Oracle Cloud Infrastructure (OCI) Registry, you would need to perform the following two actions: Assign a tag via Docker CLI to the image: Before pushing the image, you need to assign a tag to it using the Docker CLI. The tag helps identify the image and associate it with a specific version or label. Generate an auth token to complete the authentication via Docker CLI: To authenticate and authorize the push operation, you need to generate an auth token. This token is used to authenticate your Docker CLI with the OCI Registry, allowing you to push the image securely. Note: Generating an API signing key, assigning an OCI defined tag via OCI CLI, and generating an OCI tag namespace are not required steps for pushing a new image to the OCI Registry.
172. Frage
You are developing a distributed application and you need a call to a path to always return a specific JSON content deploy an OCI API Gateway with the below API deployment specification. What is the correct value for type? { " routes " : [{ " path " : " /hello " , " methods " : [ " Get " ), " backend " : { " type " : " ----------------
" , " status " : 200, " headers " : [{ " name " : " Content-Type " , " value " : " application/json " }] " body " : "
{\ " myjson\ " : \ " consistent response\ " } " }}]}
Antwort: A
Begründung:
The correct value for the " type " field in the API deployment specification is " STOCK_RESPONSE_BACKEND " . By setting the " type " to " STOCK_RESPONSE_BACKEND " , you are indicating that the backend for the specified route should return a pre-defined response. This type of backend is commonly used when you want a specific response to be returned consistently, regardless of the actual backend service implementation. In this case, the API deployment specification is configured to have a single route with the path " /hello " and the method " GET " . The backend section specifies the type as " STOCK_RESPONSE_BACKEND " . Additionally, it defines the response status code as 200, sets the " Content-Type " header to " application/json " , and provides the JSON content in the " body " field. Using this configuration, any request to the " /hello " path with the " GET " method will always receive a consistent JSON response with the content " { " myjson " : " consistent response " } " .
173. Frage
As a Cloud Native developer, you develop two services in Node.js and deploy them to two different Container Engine for Kubernetes (OKE) clusters that use the same Virtual Cloud Network (VCN). Your security team wants to analyze the network communication between them. How can this requirement be met in the most cost-effective way?
Antwort: C
Begründung:
The best answer is: " Use the OCI Logging service and enable VCN flow logs. " To meet the requirement of analyzing network communication between two services deployed in different Container Engine for Kubernetes (OKE) clusters within the same Virtual Cloud Network (VCN) in a cost-effective way, you can use the OCI Logging service and enable VCN flow logs. The VCN flow logs feature in OCI allows you to capture and log network traffic information for your VCN resources. By enabling VCN flow logs, you can monitor and analyze the network communication between your services without the need for additional third- party logging services or tools. Enabling VCN flow logs provides visibility into the network traffic, including source and destination IP addresses, ports, protocols, and other relevant details. This information can be collected and stored in the OCI Logging service, where you can analyze and gain insights into the network communication patterns between your services. By leveraging the built-in capabilities of the OCI Logging service and enabling VCN flow logs, you can fulfill the security team ' s requirement for network communication analysis in a cost-effective manner. This eliminates the need for deploying additional third- party logging services or tools, reducing complexity and potential costs associated with their setup and maintenance. The other options mentioned are not the most cost-effective or suitable solutions for analyzing network communication in this scenario: Deploying a third-party logging service and aggregating the network flow logs would introduce additional costs and complexity, which may not be necessary considering the built- in capabilities provided by OCI. Rewriting the application to send logs to an outside log aggregator would not directly address the requirement of analyzing network communication between the services. It would focus more on application-level logs rather than network-level analysis. Deploying Wireshark and intercepting packets would require additional infrastructure setup and maintenance, which may not be the most cost- effective approach for network analysis in this scenario.
174. Frage
You have built a local container image named order-processor:1.0 and need to push it to a repository named order-services in your Phoenix region (phx) tenancy, which has the Object Storage namespace ax39m19vpw.
Which command must you run to properly tag the local image before pushing it to Container Registry?
Antwort: B
Begründung:
OCI Container Registry requires the destination image tag to use the structure < region-key > .ocir.io/ < tenancy-namespace > / < repository-name > : < tag > . For Phoenix, the region key is phx; the supplied tenancy namespace is ax39m19vpw; the repository is order-services; and the image tag is 1.0. Combining these values produces phx.ocir.io/ax39m19vpw/order-services:1.0. Oracle ' s current container documentation provides the same docker tag structure before an image is pushed to OCIR. The alternative commands incorrectly reorder the namespace and registry host or use an unsupported registry hostname format.
Therefore, option A correctly retags the local order-processor:1.0 image with the fully qualified OCIR repository path required for the subsequent docker push.
175. Frage
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