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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Leveraging Serverless Technologies for Cloud Native Development | 33% | - API Gateway
|
| Topic 2: Cloud Native Fundamentals | 11% | - Cloud Native Principles
|
| Topic 3: Testing and Securing Cloud Native Applications | 13% | - Cloud Native Security
|
| Topic 4: Cloud Native Applications and Containerization | 33% | - Oracle Cloud Infrastructure Registry
|
| Topic 5: Monitoring and Troubleshooting Cloud Native Applications | 10% | - OCI Monitoring
|
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問題 #177
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?
答案：D
解題說明：
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.
問題 #178
Which statement is NOT valid regarding the OCI Vulnerability Scanning service (VSS) for container images stored in Oracle Cloud Infrastructure Registry (OCIR)?
答案：D
解題說明：
Oracle explicitly states that youcannot create a container image target using a repository that is already specified in another target. Therefore, a single OCIR repository cannot simultaneously be assigned to multiple Vulnerability Scanning targets simply to apply different recipes, making A invalid. Oracle also documents that a newly created target scans a configurable initial number of existing images, with one image being the default, and subsequently scans newly pushed images. Scan results are stored in the compartment containing the Vulnerability Scanning target, even when the repository resides elsewhere. Before creating a target, administrators must also grant Vulnerability Scanning permission to pull images from Container Registry.
Consequently, B, C, and D accurately describe documented VSS behavior.
問題 #179
Which credential type is required to act as the password when authenticating the Docker CLI to Oracle Cloud Infrastructure Registry?
答案：A
解題說明：
Oracle Container Registry requires an OCI Auth Token when Docker prompts for the password during docker login. Oracle explicitly documents that the user first generates an auth token under the OCI user profile, then supplies the tenancy namespace and username as the Docker username and the auth token as the password. A Console password is intended for interactive OCI Console authentication and is not the Docker Registry credential. API signing keys authenticate signed OCI API requests used by the CLI, SDKs, and related tools, while Customer Secret Keys are associated with Object Storage compatibility APIs. Consequently, the programmatic credential designed specifically to serve as the Docker Registry password is the OCI Auth Token.
問題 #180
What are the TWO main reasons you would choose to implement a serverless architecture? (Choose two.)
答案：C,E
解題說明：
The two main reasons to choose a serverless architecture are: Automatic horizontal scaling: Serverless architectures allow for automatic scaling of resources based on demand. The infrastructure automatically provisions and scales resources as needed, ensuring that applications can handle varying workloads efficiently. This eliminates the need for manual scaling and optimizes resource utilization. Reduced operational cost: Serverless architectures follow a pay-per-use model, where you are billed only for the actual execution time and resources consumed by your functions. This leads to cost savings as you don ' t have to pay for idle resources. Additionally, serverless architectures remove the need for managing and maintaining servers, reducing operational overhead and associated costs.Explanation: No need for integration testing:
Integration testing is still necessary in serverless architectures to ensure that functions integrate correctly with other components and services. Serverless functions can interact with various event sources, databases, and APIs, and testing is required to verify the integration points. Improved in-function state management:
Serverless architectures typically encourage stateless functions that operate on short-lived requests or events.
While there are mechanisms to manage state within a function, serverless architectures are designed to be stateless by default, promoting scalability and fault tolerance. Easier to run long-running operations:
Serverless functions are generally designed for short-lived operations rather than long-running tasks. If you have a requirement for long-running operations, a serverless architecture may not be the ideal choice, as it has execution time limits and may not provide the necessary resources for extended execution.
問題 #181
Which THREE are valid statements regarding the OCI Container Engine for Kubernetes (OKE) service?
(Choose three.)
答案：A,B,D
解題說明：
The valid statements regarding the OCI Container Engine for Kubernetes (OKE) service are: OKE automatically creates and configures new network resources for the new cluster. When creating a new OKE cluster, the service automatically provisions and configures the necessary network resources, such as VCNs, subnets, route tables, security lists, and load balancers, to support the cluster. Your tenancy must have sufficient quota on different types of resources. Before creating an OKE cluster, you need to ensure that your Oracle Cloud Infrastructure (OCI) tenancy has sufficient quota for the required resources, such as compute instances, block storage, networking resources, and load balancers. You must have access to an Oracle Cloud Infrastructure tenancy. To use the OKE service, you need to have access to an OCI tenancy. This means you must have a valid OCI account and the necessary permissions to create and manage resources within the tenancy. The following statements are not valid: OKE cannot use existing network resources for the creation of a new cluster. OKE creates new network resources specifically for the cluster, and it does not support using existing network resources. There is a limit of three clusters within each region, but there is no limit on the number of nodes and pods you can create within each cluster. This statement is incorrect. There is no specific limit on the number of clusters you can create within a region in OKE. However, there may be certain limits or quotas on resources that can impact the number of clusters you can create.
問題 #182
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