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Oracle 1z0-1109-24 Exam Syllabus Topics:
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NEW QUESTION # 10
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. JSON Web Token
- B. SSH Key Pair
- C. Auth Token
- D. Master Encryption Key in OCI Vault
Answer: C
Explanation:
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.
NEW QUESTION # 11
As a DevOps Engineer, you are tasked with explaining the key concepts of Terraform to a new team member. You want to ensure they understand the fundamental concepts of Terraform.
Which of the following best describes the purpose of Terraform variables?
- A. Terraform variables are used to manage the life cycle of Terraform resources.
- B. Terraform variables are used to define the structure and organization of Terraform configuration files.
- C. Terraform variables are used to define input values for Terraform configurations, allowing for customization and reuse of infrastructure code.
- D. Terraform variables are used to output the final state of the infrastructure after deployment.
Answer: C
Explanation:
Terraform variables are used to define input values for Terraform configurations. They allow users to customize infrastructure deployments by providing different values without modifying the configuration files themselves. Variables help in creating reusable infrastructure code, making it easy to maintain and adjust the infrastructure setup according to different environments or needs.
NEW QUESTION # 12
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 a field such as type: DOCKER_IMAGE in the outputArtifacts: section to specify the docker image produced by the Build stage
- C. Defined parameters such as the ${VARIABLE_NAME} file and later assigned their values in the Parameters tab of the build pipeline
- D. Defined variables as exportedVariables to make them available in subsequent stages of the same pipeline
Answer: C
Explanation:
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.
NEW QUESTION # 13
Which two are prerequisites for creating a secret in Oracle Cloud Infrastructure Vault service? (Choose two.)
- A. You must have a Vault managed key to encrypt the secret.
- B. The user must create a compute instance to run the secret service.
- C. You must have an auth token to encrypt the secret.
- D. You must first create a hash digest of the secret value.
- E. You must have the required permissions to create and manage secrets in the Vault service.
Answer: A,E
Explanation:
You need the required permissions (such as policies allowing secret management) to create and manage secrets in Oracle Cloud Infrastructure (OCI) Vault service. These permissions are essential for performing operations such as creating, reading, and managing secrets.
Vault managed key is required to encrypt the secret before it is stored in the OCI Vault. The managed key acts as the encryption key for securing the secret, ensuring its confidentiality.
NEW QUESTION # 14
Why is it important to extract output artifacts from the Oracle Cloud Infrastructure (OCI) DevOps build pipeline and store them in an Artifact Registry repository?
- A. Output artifacts aren't permanent. If they are to be used in the Deliver Artifacts stage, they need to be exported as output artifacts to a registry.
- B. All artifacts are permanently stored in the build pipeline. Extracting just the ones required for deployment tells the deployment pipeline which artifacts to use.
- C. Storing build artifacts in registries helps the deployment pipeline differentiate output artifacts created by the build pipeline from artifacts copied from a Git repository.
- D. Deliver Artifacts is a required stage of the build pipeline, and the entire pipeline won't work if it is not included in order to extract artifacts after the Managed Build stage.
Answer: A
Explanation:
In OCI DevOps Build Pipeline, the output artifacts generated during the build are temporary and will be discarded unless explicitly stored in a persistent location. By extracting and storing these artifacts in an Artifact Registry (such as OCI Artifact Registry or OCI Container Registry), you ensure that they are available for subsequent stages, such as deployment.
Storing artifacts in a registry provides a persistent location where the deployment pipeline can access them, ensuring the artifacts are available for reliable deployment.
NEW QUESTION # 15
An operations team is exploring the use of OCI Container Instances to run their container workloads without managing servers.
Which of the following statements is false regarding the use of Container Instances?
- A. Container Instances require the team to perform provisioning, patching, and ongoing management of servers.
- B. The underlying infrastructure for Container Instances is fully managed and hardened by OCI, ensuring reliability and security.
- C. Billing for Container Instances is based on the allocated CPU and memory resources for each container instance.
- D. Container Instances provide a serverless compute service for running containers, eliminating the need for server management.
Answer: A
Explanation:
OCI Container Instances are a serverless compute service that allows you to run containerized workloads without managing the underlying infrastructure. Oracle Cloud Infrastructure (OCI) manages provisioning, patching, and all the ongoing server management tasks, providing a fully managed environment.
NEW QUESTION # 16
Which statement is false about OCI Resource Manager (RM)?
- A. RM can mirror repositories from GitHub and GitLab.
- B. RM can render custom "Application Information" pages for stacks.
- C. RM can generate Terraform based on the resources in a compartment.
- D. Resources provisioned through RM cannot be destroyed from outside of RM.
Answer: D
Explanation:
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.
NEW QUESTION # 17
As a DevOps engineer working on managing clusters on the OCI platform for your organization, which statement is true about managing cluster add-ons in OCI OKE Cluster?
- A. When creating a new cluster, essential cluster add-ons are set to manually update.
- B. When you disable a cluster add-on using the console, the add-on is completely removed from the cluster.
- C. When creating a new cluster, essential cluster add-ons cannot be disabled.
- D. When enabling a cluster add-on, you cannot configure the add-on by specifying one or more key/value pairs to pass as arguments to the cluster add-on.
Answer: C
Explanation:
Essential cluster add-ons are required for the basic functioning of the Kubernetes cluster and cannot be disabled during cluster creation. These add-ons provide necessary features such as core DNS, networking, and other critical functionalities for the cluster's operation.
NEW QUESTION # 18
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. Use OCI DevOps Trigger and Rerun tool to avoid downtime.
- C. Roll back the failed stage in the pipeline to the previous successful released version
- D. Automate back up and use the rerelease stage in the Deployment Pipeline.
Answer: C
Explanation:
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.
NEW QUESTION # 19
As a DevOps engineer at XYZ Corp, you are responsible for ensuring the smooth operation of high-traffic web applications hosted on Oracle Cloud Infrastructure (OCI). The web applications run on multiple OCI resources, including virtual machines, load balancers, and databases. Recently, users have reported failures while accessing one of the OCI-based web applications, and you suspect HTTP 5XX errors on the load balancer. You need to quickly identify and address this issue.
Which of the following statements can assist you in quickly identifying and monitoring the HTTP 5XX error rate on the load balancer and setting up notifications?
- A. Use Metrics and Alarms of the Monitoring service to monitor the HTTP 5XX error rate on the load balancer and set up notifications with OCI Notifications.
- B. Use Metrics and Alarms of the Monitoring service with Container Engine for Kubernetes (OKE) to monitor HTTP 5XX errors on Kubernetes resources and correlate them with other OCI resources.
- C. Use Custom Metrics of the Monitoring service to collect HTTP 5XX error rates from the load balancer and set up Service Connectors with third-party services such as PagerDuty or Slack.
- D. Use Event Rules to detect HTTP 5XX errors on the load balancer and trigger automated actions using OCI Functions or API Gateway.
Answer: B
Explanation:
The Monitoring service in OCI can be used to track metrics for various OCI resources, including load balancers. You can monitor specific metrics, such as HTTP 5XX error rates, to identify issues.
By using Alarms, you can set up thresholds for the HTTP 5XX error rate and receive notifications when the threshold is breached. The notifications can be configured through OCI Notifications, which allows integration with email, PagerDuty, Slack, and other channels.
NEW QUESTION # 20
Observability helps understand system behavior, but it has limitations.
Which of the following tasks cannot be accomplished solely through observability?
- A. Optimizing resource utilization
- B. Identifying infrastructure bottlenecks
- C. Automating software deployments
- D. Identifying resource consumption
Answer: C
Explanation:
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.
NEW QUESTION # 21
You're using Oracle Cloud Infrastructure (OCI) DevOps to automate your application deployment for frequent releases. In one of your automation steps, you'll create a deployment pipeline.
What does this deployment pipeline do in OCI DevOps?
- A. It is a sequence of steps for delivering and deploying your artifacts to a target environment.
- B. It is used to store, manage, develop source code with OCI DevOps Code Repositories.
- C. It takes a commit ID from your source code repositories and uses that source code to run your build instructions.
- D. It is a set of stages for your build process for building, testing and compiling software artifacts.
Answer: A
Explanation:
A deployment pipeline in OCI DevOps is used to automate the deployment of application artifacts to a target environment. It is a sequence of stages that includes steps such as approvals, traffic shifts, manual interventions, and the actual deployment of the artifacts to environments like Kubernetes clusters or compute instances.
NEW QUESTION # 22
A team wants to deploy artificial intelligence and machine learning workloads in their OCI Container Engine for Kubernetes (OKE) cluster. They prioritize strong isolation, cost-efficiency, and the ability to leverage serverless capabilities.
Which solution is best suited for their requirements?
- A. Managed nodes in OKE
- B. Self-Managed Nodes in OKE
- C. Virtual nodes in OKE
- D. Container Instances in OCI
Answer: C
Explanation:
Virtual nodes in OKE provide a serverless experience for deploying Kubernetes workloads, which means you do not have to manage or scale the underlying infrastructure. This solution is particularly cost-efficient because you only pay for the resources used by the pods, and it provides strong isolation for workloads.
Virtual nodes are well suited for AI/ML workloads as they allow users to easily scale compute resources without being constrained by the limits of individual worker nodes.
NEW QUESTION # 23
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. Access to an Oracle Cloud Infrastructure tenancy is required to set up the new OKE cluster.
- C. It is necessary to ensure sufficient quota on different resource types in your OCI tenancy for the cluster setup.
- D. Container Engine for Kubernetes cannot utilize existing network resources for the creation of the new cluster.
Answer: D
Explanation:
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.
NEW QUESTION # 24
A DevOps team is deploying a new version of their application to their production environment using the Canary deployment strategy in the OCI DevOps service. They want to ensure that the production environment is not affected by any potential issues caused by the new version.
Which statement is true in regards to the Canary deployment strategy?
- A. The Invoke Function stage is an optional stage that can be used to validate the new version before moving to the production environment.
- B. The Canary deployment strategy only supports pipeline redeployment for OKE and not for instance group deployments.
- C. The Production stage in the Canary deployment strategy deploys the new version to the production environment without any manual approval.
- D. The Shift Traffic stage in the Canary deployment strategy shifts the entire 100% of the production traffic to the Canary environment.
Answer: A
Explanation:
In a Canary deployment strategy, a new version of an application is rolled out to a small subset of the production environment (the canary) first, while the majority of the production environment still runs the current stable version. This approach helps to detect potential issues before the new version is fully deployed.
The Invoke Function stage can be used as an optional step in the deployment pipeline to run additional validation (e.g., automated tests or other checks) on the new version before gradually shifting more traffic to it or moving to full production deployment.
NEW QUESTION # 25
You are a DevOps project administrator. You are creating Oracle Cloud Infrastructure (OCI) Identity and Access Management (IAM) policies that will be used in a DevOps CI/CD pipeline for deployment to an Oracle Container Engine for Kubernetes (OKE) environment.
Which OCI IAM policy can be used?
- A. Allow group <build pipeline> to manage all-resources in compartment <compartment name>
- B. Allow dynamic-group <code repository> to manage devops-family in compartment <compartment name>
- C. Allow group <deployment pipeline> to manage devops-family in compartment <compartment name>
- D. Allow dynamic-group <deployment pipeline> to manage all-resources in compartment <compartment name>
Answer: C
Explanation:
Choosen policy specifies an IAM policy allowing the group (in this case, the deployment pipeline) to manage devops-family resources within a specific compartment. The devops-family is a group of services that includes the OCI DevOps service, which is suitable for managing CI/CD pipelines, deployments, and related operations for an OKE environment.
NEW QUESTION # 26
How can you run applications on GPU worker nodes in clusters created using Container Engine for Kubernetes (OKE)?
- A. By selecting a managed node pool, a GPU shape, and a GPU image, and ensuring that the CUDA libraries for different GPUs are pre-installed on the worker nodes
- B. By selecting a virtual node pool, a GPU shape, and a GPU image, and ensuring that the CUDA libraries are included in the application container
- C. By selecting a managed node pool, a GPU shape, and a GPU image, and specifying the number of CPU resources required in the pod spec
- D. By selecting a managed node pool, a GPU shape, and a GPU image that has CUDA libraries pre-installed, and specifying the number of GPU resources required in the pod spec
Answer: D
Explanation:
To run applications on GPU worker nodes in Oracle Kubernetes Engine (OKE), you need to:
Select a managed node pool and choose a GPU shape for the worker nodes.
Use a GPU image that has the necessary CUDA libraries pre-installed to ensure that GPU workloads can be executed properly.
In the pod specification, specify the number of GPU resources required for the container to utilize the GPU hardware during execution. This allows Kubernetes to schedule the pod on a node with an available GPU.
NEW QUESTION # 27
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. Bare metal compute instance
- B. Virtual machine compute instance
- C. Oracle Kubernetes (OKE)
- D. Functions
Answer: D
Explanation:
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.
NEW QUESTION # 28
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 custom metrics from the services exceed a configured threshold.
- B. When the rate of requests to the application crosses a configured threshold.
- C. When the CPU or memory utilization crosses a configured threshold.
- D. When the resource requests from pods exceed a configured threshold.
Answer: D
Explanation:
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.
NEW QUESTION # 29
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. Use OCI DevOps Trigger and Rerun tool to avoid downtime.
- C. Roll back the failed stage in the pipeline to the previous successful released version
- D. Automate back up and use the rerelease stage in the Deployment Pipeline.
Answer: C
Explanation:
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.
NEW QUESTION # 30
You are a developer and have been asked to develop an e-commerce website for your organization. It must support a variety of clients including desktop browsers, mobile browsers and native mobile applications.
Which two approaches can you use to build the application to achieve deployment independence, easier technology upgrades, and resiliency to architecture changes? (Choose two.)
- A. Choose monolithic approach over microservices as it has better fault isolation capability.
- B. Use microservices architecture as it eliminates any long-term commitment to a technology stack.
- C. Use monolithic approach, as it allows you to easily redeploy your applications to perform frequent updates.
- D. Implement each module as an independent service/process which can be replaced, updated, or deleted without disrupting the rest of the application.
- E. Use monolithic approach to as it makes it easier to incrementally adapt to newer technology.
Answer: B,D
Explanation:
By implementing each module as an independent service/process (which is a core feature of microservices architecture), you can replace, update, or delete services without affecting the rest of the application. This ensures deployment independence and makes it easier to adapt to architecture changes or technology upgrades without major disruptions.
Microservices architecture allows each service to be built with the best-suited technology stack for its specific function. This flexibility ensures that you are not tied to a single technology for the entire application, making future technology upgrades easier and eliminating long-term technology commitments.
NEW QUESTION # 31
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