1z0-1109-23 Exam Dumps - Oracle Cloud Infrastructure Certification Questions and Answers

Explanation

The correct statement is: Users can avoid downtime during deployments and automate the complexity of updating applications. The Oracle Cloud Infrastructure (OCI) DevOps service provides a set of tools and services that help automate and streamline the software development and deployment processes. One of the key benefits of OCI DevOps is the ability to avoid downtime during deployments by implementing strategies such as blue-green deployments or rolling deployments. By using OCI DevOps, users can automate the complexity of updating applications by defining CI/CD (Continuous Integration/Continuous Deployment) pipelines. These pipelines can include steps for building, testing, and deploying applications, allowing for efficient and reliable updates without disrupting the availability of the application. The other statements provided are not accurate: OCI DevOps allows users to migrate workloads from on-premises environments as well as from other cloud plat-forms. Users can store code in both public and private repositories, including internal code repositories. OCI DevOps provides visibility into the full lifecycle phases of applications, allowing users to assess performance and make informed decisions. Reference: https://docs.oracle.com/en-us/iaas/Content/devops/using/devops_overview.htm

Explanation

The two changes to infrastructure with the Oracle Cloud Infrastructure (OCI) Provider for Terraform that will not result in any resources being destroyed or provisioned are: Adding a CIDR block to a VCN: This change does not affect any existing resources. It simply expands the IP ad-dress range of the VCN, allowing for the creation of additional subnets within the VCN. Adding a subnet to a VCN: Similar to adding a CIDR block, adding a subnet to a VCN does not affect any existing resources. It defines a new subnet within the VCN's IP address range, allowing for the al-location of resources to that subnet. Changing the image OCID of a compute instance, changing the shape of a compute instance, and changing the Display Name of a compute instance can potentially result in resource destruction and provisioning. These changes may require the creation of new in-stances, reconfiguration of existing instances, or termination of existing instances, depending on the specifics of the changes.

The primary benefits of DevOps tools are to improve the efficiency of IT operations by automating routine tasks and eliminating manual processes, and to automate the software development lifecycle to increase production speed and consistency. DevOps tools enable collaboration between developers and operations teams, streamline workflows, reduce errors, enhance security, and enable continuous integration and delivery of software. Verified References: [DevOps - Oracle Cloud Infrastructure Developer Tools], [DevOps Tools - Oracle Cloud Infrastructure Developer Tools]

The goal of DevSecOps is to integrate security into every stage of the software development process, from planning to delivery. DevSecOps aims to find and fix security issues early in the software development process, before they become costly and risky to remediate. DevSecOps also codifies security as part of the larger goal structure of DevOps, which is to deliver software faster and more reliably while ensuring quality and compliance. Verified References: [DevSecOps - Oracle Cloud Infrastructure Security], [DevSecOps Best Practices - Oracle Cloud Infrastructure Security]

Explanation

As a developer working on the Oracle Cloud Infrastructure (OCI) DevOps service, when creating a build spec YAML file for the build pipeline, the following two actions are part of the proper creation of the file: Enter the details for binaries used in later pipeline stages into the outputArtifacts section: In the outputArtifacts section, you specify the artifacts or files generated during the build process that should be saved for future use. These artifacts can include compiled binaries, libraries, configuration files, or any other relevant files that need to be preserved. Enter the necessary vault secret variable OCIDs into the vaultVariables section: In the vaultVariables section, you define the variables that correspond to the Vault OCIDs (Oracle Cloud Infrastructure Vault service). These variables are used to securely store and retrieve sensitive information, such as API keys, passwords, or other secrets, required by the build pipeline or later stages of the deployment process. By including these actions in the build spec YAML file, you ensure that the necessary artifacts are properly saved and that the required vault secret variables are available for secure access during the build and deployment pipeline execution. Reference: https://docs.oracle.com/en-us/iaas/Content/devops/using/build_specs.htm

Explanation

The correct option is: A playbook could be leveraged and executed against the group of web servers, as defined in the Inventory. Then, Ansible would connect to each server and apply the same set of configurations. In Ansible, a playbook is a YAML file that describes a series of plays and tasks to be executed against a group of hosts. The inventory file defines the group of web servers that need to be patched. By leveraging a playbook, the DevOps team can define the desired configuration or patching tasks once and apply them consistently across all the web servers in the group. An-sible will connect to each server in the inventory and execute the tasks defined in the playbook, ensuring that the desired configurations or patches are applied uniformly. This approach simplifies the management of multiple servers as the same playbook can be executed against the entire group, eliminating the need to manually configure each server individually. It also allows for automation and repeatability, ensuring that the desired changes are applied consistently and efficiently.

The OCI service that can be used as a target deployment environment for adopting a DevOps framework and a consumption-based pricing model, while providing features like automated rollouts and rollbacks, self-healing of failed containers, and configuration management, without the overhead of managing security patches and scaling, is OCI Container Engine for Kubernetes (OKE) with virtual nodes. OKE is a fully managed service that allows you to run and manage your containerized applications on OCI using Kubernetes, an open-source system for automating deployment, scaling, and management of containerized applications. OKE provides features such as automated rollouts and rollbacks, self-healing of failed containers, configuration management, service discovery, load balancing, etc. OKE also supports virtual nodes, which are serverless compute resources that are automatically provisioned and scaled by OCI based on your application workload demands. Virtual nodes eliminate the need for managing worker node infrastructure, such as security patches, updates, scaling, etc. Virtual nodes also offer a consumption-based pricing model, where you only pay for the resources you consume when your containers are running. Verified References: [Container Engine for Kubernetes - Oracle Cloud Infrastructure Developer Tools], [Virtual Nodes - Oracle Cloud Infrastructure Container Engine for Kubernetes]

Explanation

OCI DevOps deployment pipelines can work across OCI regions. From a single deployment pipe-line, deployments can be executed into multiple regions, in parallel or sequentially. To efficiently deploy an application in the Japan Central (ap-osaka-1) region using an existing deployment pipeline set up in the US East (us-ashburn-1) region, the recommended approach is: Deploy directly in ap-osaka-1 from the us-ashburn-1 deployment pipeline. OCI DevOps allows you to deploy applications across regions, and you can leverage this capability to deploy your application in a different region than where the deployment pipeline is set up. You can configure the deployment stage in your deployment pipeline to target the ap-osaka-1 region, specifying the appropriate resources and settings for deployment in that region. This way, you can achieve efficient deployment to the desired region without the need to create a separate deployment pipeline. The other options mentioned are not the most efficient approaches: Creating another deployment pipeline in ap-osaka-1: While it is possible to create another deployment pipeline in the ap-osaka-1 region, it would introduce additional complexity and management overhead. It is more efficient to leverage the existing deployment pipeline and configure it to deploy in the desired region. Deploying the application in us-ashburn-1 and duplicating it in ap-osaka-1: This approach would involve deploying the application separately in both regions, which can lead to duplication of efforts and increased maintenance complexity. It is more efficient to use a single deployment pipeline and configure it to deploy in the target region directly.

Explanation

The group of OCI services that can help you get application insights is OCI Logging, Monitoring, and Application Performance Monitoring (APM). OCI Logging allows you to collect and analyze log data from your applications, infrastructure, and other resources. It helps you track and trouble-shoot issues by providing visibility into the performance and behavior of your applications. OCI Monitoring enables you to monitor the health, performance, and availability of your cloud resources, including your applications. It allows you to set up metrics, alarms, and notifications to proactively monitor and respond to any issues or anomalies. OCI Application Performance Monitoring (APM) is specifically designed to provide insights into the performance of your applications. It helps you identify and diagnose performance bottlenecks, track user experiences, and optimize the overall performance of your applications. By using OCI Logging, Monitoring, and APM together, you can gain comprehensive visibility into your cloud native applications and effectively monitor their performance and behavior.

Explanation

A valid concern that needs to be further investigated in this scenario is whether the OKE cluster has a secret with credentials of the Oracle Cloud Infrastructure Registry (OCIR) repository and if that secret is being used in the Kubernetes deployment manifest. When deploying an application on OKE and pulling images from OCIR, the cluster needs to authenticate and authorize access to the OCIR repository. This is typically done by creating a Kubernetes secret that contains the credentials (authentication token or username/password) required to access the repository. The secret is then referenced in the Kubernetes deployment manifest to allow the cluster to pull the images. If the images are not getting pulled from the designated OCIR repository, it suggests that the OKE cluster might be missing the necessary secret with the OCIR credentials or the secret is not properly referenced in the deployment manifest. Further investigation should focus on ensuring the existence and correct configuration of the secret and its usage in the deployment process.