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Oracle 1Z0-1109-25 認定試験の出題範囲：
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質問 # 28
How can system administrators ensure that only signed images from Oracle Cloud Infrastructure Registry are deployed to a Container Engine for Kubernetes cluster?
- A. By encrypting the images using a custom encryption algorithm
- B. By disabling access to the Container Engine for Kubernetes cluster
- C. By configuring an image verification policy for the cluster
- D. By manually inspecting each image before deployment
正解：C
解説：
Image verification policies are used to ensure that only trusted and signed images are deployed to an Oracle Kubernetes Engine (OKE) cluster. By configuring such policies, administrators can enforce that images must be signed and come from trusted sources, such as the Oracle Cloud Infrastructure Registry.
質問 # 29
You have been asked to provision a new production environment on Oracle Cloud Infrastructure (OCI). After working with the solution architect, you decide that you are going to automate this process.
Which OCI service can help automate the provisioning of this new environment?
- A. Oracle Functions
- B. Oracle Container Engine for Kubernetes
- C. OCI Streaming Service
- D. OCI Resource Manager
正解：D
解説：
OCI Resource Manager is an infrastructure as code (IaC) service that allows you to automate the provisioning of resources on Oracle Cloud Infrastructure (OCI) using Terraform. It is ideal for automating the setup of environments, as it can manage the full lifecycle of your infrastructure in a consistent, repeatable, and version-controlled manner.
質問 # 30
An operations team wants to leverage the advanced features of Container Engine for Kubernetes (OKE) and requires granular control over cluster add-ons, workload identity, and improved worker node management. They also prioritize strong security measures and require a financially-backed service level agreement (SLA) for Kubernetes API server uptime.
Which type of cluster should they choose to meet their requirements?
- A. Virtual clusters
- B. Federated clusters
- C. Enhanced clusters
- D. Specialized clusters
正解：C
解説：
Enhanced clusters in Oracle Container Engine for Kubernetes (OKE) provide advanced features such as granular control over cluster add-ons, workload identity, and improved worker node management. They also offer strong security measures and come with a financially-backed service level agreement (SLA) for Kubernetes API server uptime, ensuring higher reliability and support for production workloads.
質問 # 31
How does the Oracle Cloud Infrastructure Container Engine for Kubernetes (OKE) Cluster Autoscaler determine when to create new nodes for an OKE cluster?
- A. When the CPU or memory utilization crosses a configured threshold.
- B. When the resource requests from pods exceed a configured threshold.
- C. When the rate of requests to the application crosses a configured threshold.
- D. When the custom metrics from the services exceed a configured threshold.
正解：B
解説：
The OKE Cluster Autoscaler automatically adjusts the number of worker nodes in an OKE cluster based on the resource requests made by Kubernetes pods. When there are not enough resources available (e.g., CPU or memory) on existing nodes to accommodate pending pods, the Cluster Autoscaler will create new nodes to meet the resource demand.
質問 # 32
Which statement is false about OCI Resource Manager (RM)?
- A. Resources provisioned through RM cannot be destroyed from outside of RM.
- B. RM can mirror repositories from GitHub and GitLab.
- C. RM can generate Terraform based on the resources in a compartment.
- D. RM can render custom "Application Information" pages for stacks.
正解：A
解説：
Resources provisioned through OCI Resource Manager (RM) can still be modified or destroyed from outside of RM, such as using the OCI Console, CLI, or other APIs. RM manages the lifecycle of resources created by its Terraform configurations, but it does not prevent other tools or methods from modifying or deleting those resources.
質問 # 33
While adding variables to your build_spec.yaml file, you made a mistake that resulted in a failed build pipeline.
What is the error you could have made?
- A. Used vaultVariable to hold the content of the vault secrets in Base64 format
- B. Defined variables as exportedVariables to make them available in subsequent stages of the same pipeline
- C. Defined parameters such as the ${VARIABLE_NAME} file and later assigned their values in the Parameters tab of the build pipeline
- D. Defined a field such as type: DOCKER_IMAGE in the outputArtifacts: section to specify the docker image produced by the Build stage
正解：C
解説：
In build_spec.yaml for OCI DevOps, variables must be correctly defined and used according to the specification. If you defined parameters using ${VARIABLE_NAME} and then attempted to assign their values through the Parameters tab in the build pipeline, you may have introduced an error. The syntax and usage of parameters must be properly defined in both the build_spec.yaml and the build pipeline interface.
質問 # 34
As a DevOps engineer at XYZ Corp, you have been assigned the task of setting up a new OKE (Oracle Kubernetes Engine) cluster to manage the organization's Kubernetes applications hosted on Oracle Cloud Infrastructure (OCI). Your goal is to ensure a smooth and efficient process while preparing for the cluster creation.
Which of the following statements is false regarding the preparation process for setting up a new OKE cluster?
- A. Container Engine for Kubernetes automatically creates and configures new network resources for the new cluster.
- B. Container Engine for Kubernetes cannot utilize existing network resources for the creation of the new cluster.
- C. It is necessary to ensure sufficient quota on different resource types in your OCI tenancy for the cluster setup.
- D. Access to an Oracle Cloud Infrastructure tenancy is required to set up the new OKE cluster.
正解：B
解説：
This statement is false because Container Engine for Kubernetes (OKE) can utilize existing network resources such as Virtual Cloud Networks (VCNs), subnets, security lists, and route tables for the creation of a new cluster. You can either use pre-existing network resources or let OKE create new network resources automatically.
質問 # 35
Which command creates the docker registry secret required in the application manifests for OKE to pull images from Oracle Cloud Infrastructure Registry?
- A.
- B.
- C.
- D.
正解：C
解説：
To create a Docker registry secret to pull images from the Oracle Cloud Infrastructure Registry (OCIR), you need to specify the correct parameters such as the region key, namespace, OCI username, and OCI authentication token.
Chosen command is correct because:
The kubectl create secret docker-registry command creates a Docker registry secret.
The --docker-server=<region-key>.ocir.io specifies the correct endpoint for OCIR.
The --docker-username=<tenancy-namespace>/<oci-username> provides both the tenancy namespace and the OCI username, which is the required format for authentication with OCIR.
The --docker-password='<oci-auth-token>' specifies the OCI auth token, which acts as a password for authentication.
The --docker-email=<email-address> is also included.
The other commands have errors, such as missing tenancy namespace or using incorrect flags (passwd instead of secret).
質問 # 36
Which of the following is NOT considered a DevOps resource in the context of the OCI DevOps project service?
- A. API integrations
- B. Code repositories
- C. Environments
- D. Build pipelines
正解：A
解説：
In the context of OCI DevOps project service, the key DevOps resources include:
Environments: These are used to represent deployment targets, such as Kubernetes clusters, compute instances, or functions.
Build pipelines: These automate the building, testing, and packaging of software.
Code repositories: These store source code for the application being built, providing version control and collaboration.
API integrations are not directly considered a DevOps resource in OCI DevOps projects. Instead, they facilitate communication and integration with other tools or services but do not represent a core component of DevOps projects like environments, build pipelines, or code repositories.
質問 # 37
Which is NOT a valid log category for the Oracle Cloud Infrastructure Logging service?
- A. Custom Logs
- B. Service Logs
- C. Audit Logs
- D. Execution Logs
正解：D
解説：
The Oracle Cloud Infrastructure Logging service has several log categories that users can utilize:
Custom Logs: Users can create their own logs to collect application-specific data.
Audit Logs: These logs contain audit records that provide information about activities performed on resources, generated by OCI Audit service.
Service Logs: These are logs generated by OCI services, providing information about the functioning and performance of the services.
Execution Logs is not a valid log category in OCI Logging. There are no "execution logs" as a defined category for the Logging service.
質問 # 38
Which of the following statement is INCORRECT with respect to a Dockerfile?
- A. If CMD instruction provides default arguments for the ENTRYPOINT instruction, both should be specified in JSON format.
- B. The RUN instruction will execute any commands in a new layer on top of the current image and commit the results.
- C. WORKDIR instruction sets the working directory for any RUN, CMD, ENTRYPOINT instructions and not for COPY and ADD instructions in the Dockerfile.
- D. An ENV instruction sets the environment value to the key, and it is available for the subsequent build steps and in the running container as well.
正解：C
解説：
The WORKDIR instruction sets the working directory for all subsequent RUN, CMD, ENTRYPOINT, COPY, and ADD instructions in the Dockerfile. This means that after specifying WORKDIR, all these instructions will use the specified directory as their current working directory.
質問 # 39
Observability helps understand system behavior, but it has limitations.
Which of the following tasks cannot be accomplished solely through observability?
- A. Identifying resource consumption
- B. Identifying infrastructure bottlenecks
- C. Automating software deployments
- D. Optimizing resource utilization
正解：C
解説：
Observability refers to the ability to understand a system's internal state by observing its outputs. It involves metrics, logs, and tracing to provide insights into the system's behavior, which helps in monitoring and identifying issues.
質問 # 40
You host your application on a stack in Oracle Cloud Infrastructure (OCI) Resource Manager. Because of recent growth in your user base, you decide to add a CIDR block to your VCN, add a subnet, and provision a compute instance in it.
Which statement is true?
- A. You can make the changes to the Terraform code, run an Apply job, and Resource Manager will provision the new resources.
- B. You can make the changes to the Terraform code, run a Drift Detection job, and Resource Manager will provision the new resources.
- C. You need to provision a new stack because Terraform uses immutable infrastructure.
- D. You need to provision the new resources in the OCI console first, then add them later to the Terraform configuration and state.
正解：A
解説：
Oracle Cloud Infrastructure (OCI) Resource Manager uses Terraform to manage infrastructure resources. If you need to add new resources (e.g., a new CIDR block, subnet, and compute instance), you can simply make the necessary changes to the Terraform code defining the stack.
After modifying the Terraform configuration to include the new resources, you can run an Apply job in Resource Manager. The Apply job will provision the new resources in your OCI environment according to the updated Terraform code.
質問 # 41
What are the two items required to create a rule for the Oracle Cloud Infrastructure Events Service? (Choose two.)
- A. Service Connector
- B. Auth Token
- C. Rule Conditions
- D. Management Agent Cloud Service
- E. Actions
正解：C、E
解説：
Oracle Cloud Infrastructure (OCI) Events Service allows you to create rules to automatically respond to changes in your OCI environment. To create a rule, you need the following items:
Rule Conditions: Conditions define the events that will trigger the rule. This specifies what event (e.g., instance creation, object storage bucket modification) will trigger an action.
Actions: Actions define what should happen when a condition is met. For example, the action might be to trigger an OCI Function or send a notification.
質問 # 42
How do OCI DevOps Deployment Pipelines reduce risk and complexity of production applications?
- A. By eliminating downtime of production applications
- B. By reducing change-driven errors introduced by manual deployments
- C. By scaling builds with service-managed build runners
- D. By working with existing Git repositories and CI systems
正解：B
解説：
OCI DevOps Deployment Pipelines automate the process of deploying applications to production environments. By using automated, repeatable deployment processes, they help reduce the risk of change-driven errors, which are often introduced during manual deployments. This automation reduces human errors and ensures consistency across environments, thus minimizing complexity and risk in production.
質問 # 43
A small company is moving to a DevOps framework to better accommodate their intermittent workloads, which are dynamic and irregular. They want to adopt a consumption-based pricing model.
Which Oracle Cloud Infrastructure service can be used as a target deployment environment?
- A. Oracle Kubernetes (OKE)
- B. Virtual machine compute instance
- C. Bare metal compute instance
- D. Functions
正解：D
解説：
Oracle Cloud Infrastructure Functions is a serverless compute service that supports a consumption-based pricing model. This means that you are only charged for the compute resources when your function is invoked. This is ideal for intermittent, dynamic, and irregular workloads since the company does not need to provision infrastructure in advance, and costs are directly tied to usage.
質問 # 44
As a DevOps engineer working on a CI/CD pipeline for your company's application, you have completed code analysis, image scanning, and automated testing.
What is the next step to ensure a secure and reliable deployment?
- A. Add a shell stage to run custom commands in the deployment pipeline.
- B. Add an invoke function stage to run code or custom logic in a serverless manner.
- C. Add a traffic Shift stage to route the traffic between two sets ofbackend IPs.
- D. Add an approval stage to pause the deployment for a specified duration for manual decision from the approver.
正解：D
解説：
After completing code analysis, image scanning, and automated testing, the next step in the CI/CD pipeline should include a manual review to ensure that all necessary security and quality checks have been performed correctly. Adding an approval stage helps ensure that a secure and reliable deployment is achieved by requiring human verification and approval before proceeding with the deployment to production.
This step adds an extra layer of control to prevent unintended issues from moving forward without further review. It is a common practice in CI/CD pipelines to have an approval step, especially for critical deployments.
質問 # 45
A software development team is working on a prototype using Node.js and MongoDB as their programming language and database, respectively. They need to develop and test isolated web applications or RESTful APIs. They are looking for a simple, quick, and secure way to run containers without managing any servers.
Which OCI service is best suited for this use case?
- A. OCI Functions
- B. Compute Instances
- C. Container Instances
- D. OCI DevOps Project
正解：C
解説：
OCI Container Instances provide a serverless way to run containers in Oracle Cloud Infrastructure (OCI). They allow you to run containers without having to manage any underlying servers or clusters. This is ideal for development teams that need a simple, quick, and secure way to develop and test isolated web applications or RESTful APIs.
質問 # 46
As a DevOps engineer working on containerizing a microservices-based application to be hosted on OCI Cloud platforms, which step can help ensure that the container images have not been modified after being pushed to Oracle Cloud Infrastructure Registry (OCIR)?
- A. Deploying a manifest to the Kubernetes cluster that references the container image and its unique hash
- B. Scanning the image upon ingestion and comparing the image size for changes
- C. Signing the image using the Container Registry CLI and creating an image signature that associates the image with the master encryption key and key version in the Vault service
- D. Enabling scanning of container images stored in OCI Registry
正解：C
解説：
To ensure that container images have not been modified after being pushed to the Oracle Cloud Infrastructure Registry (OCIR), you should sign the image. This involves using the Container Registry CLI to create a digital signature for the image, which associates the image with a master encryption key and key version stored in the OCI Vault service. This signature can then be verified at the time of deployment, ensuring that the image has not been tampered with since it was signed.
質問 # 47
You're using Oracle Cloud Infrastructure (OCI) DevOps service to automate your software releases to release features more frequently and with fewer errors. While deploying an update to production, one of your deployment stages failed.
What action should you perform in your Deployment Pipeline?
- A. Add Rescue and Trigger stages to automatically trigger the failed deployment.
- B. Roll back the failed stage in the pipeline to the previous successful released version
- C. Automate back up and use the rerelease stage in the Deployment Pipeline.
- D. Use OCI DevOps Trigger and Rerun tool to avoid downtime.
正解：B
解説：
When a deployment stage fails in a OCI DevOps Deployment Pipeline, the recommended approach is to roll back to the previous successful version to ensure that the production environment remains in a stable state. This approach minimizes disruption and ensures that your system continues to function properly while the issue with the failed deployment is investigated and fixed.
質問 # 48
You are a DevOps engineer working on a project that requires you to push and pull Docker images to and from Oracle Cloud Infrastructure Registry (Container Registry) using Docker CLI. You have been given access to Container Registry and have installed Docker CLI on your local machine.
Which should you create and use to securely authenticate and store your Docker image in a private Docker registry in OCI?
- A. Auth Token
- B. SSH Key Pair
- C. JSON Web Token
- D. Master Encryption Key in OCI Vault
正解：A
解説：
To authenticate with the Oracle Cloud Infrastructure Registry (Container Registry) when using the Docker CLI, you need to use an Auth Token. The Auth Token is created in the OCI console and acts as a password for the Docker login command, providing secure access to the container registry.
質問 # 49
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無料Oracle Cloud Infrastructure 1Z0-1109-25試験問題：https://jp.fast2test.com/1Z0-1109-25-premium-file.html