Most Recent Oracle 1Z0-1109-23 Exam Questions & Answers

One of the ways that OCI DevOps deployment pipelines reduce risk and complexity of production applications is by reducing change-driven errors introduced by manual deployments. A deployment pipeline is a sequence of stages that automates the delivery of software from source code to production. By using a deployment pipeline, you can eliminate human errors, enforce quality checks, and ensure consistency across different environments. A deployment pipeline also enables faster feedback loops, easier rollback, and improved traceability of changes. Verified Reference: [Deployment Pipelines - Oracle Cloud Infrastructure DevOps], [Creating Deployment Pipelines - Oracle Cloud Infrastructure DevOps]

The WORKDIR command is used to define the working directory of a Docker container at any given time. The command is specified in the Dockerfile. Any RUN , CMD , ADD , COPY , or EN-TRYPOINT command will be executed in the specified working directory. Reference: https://www.geeksforgeeks.org/difference-between-the-copy-and-add-commands-in-a-dockerfile/

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.

The OCI service that can provide you with the necessary information to identify the potential issue and help in debugging the deployment pipeline is OCI Logging service. OCI Logging service is a service that allows you to collect, manage, search, analyze, and monitor logs from your OCI resources and applications. You can use OCI Logging service to view the logs from your build and deployment pipelines, such as the start time, end time, status, output, error messages, etc. You can also use OCI Logging service to filter, query, and export the logs for further analysis or troubleshooting. Verified Reference: [Logging - Oracle Cloud Infrastructure Developer Tools], [Viewing Logs - Oracle Cloud Infrastructure Developer Tools]

As the OKE cluster administrator, you can define permissions to restrict pod-to-pod communications except as explicitly allowed by using Network Policies. Network Policies are a Kubernetes feature that allows you to define rules for network traffic within the cluster. They provide fine-grained control over ingress (incoming) and egress (outgoing) traffic between pods. By creating Network Policies, you can specify the allowed communication paths between pods based on various criteria such as source and destination pods, namespaces, IP addresses, ports, and protocols. This allows you to enforce security and isolation within your OKE cluster, ensuring that pods can only communicate with authorized pods or services. RBAC Roles and IAM Policies are used to manage access control and permissions for managing and interacting with the cluster itself, but they do not directly control pod-to-pod communications. Security Lists, on the other hand, are associated with VCN (Virtual Cloud Network) resources and control traffic at the subnet level, not at the pod level within the OKE cluster. Reference: https://docs.oracle.com/en-us/iaas/Content/Security/Reference/oke_security.htm