Oracle 1z0-1109-23 Dumps Questions Answers

Explanation

The three actions that the DevOps Engineer must perform to easily manage and troubleshoot applications on Oracle Cloud Infrastructure Container Engine for Kubernetes (OKE) are: Create a service account and the clusterrolebinding, obtain an authentication token for the service account using the kubectl command, and run a kubectl proxy command to enable the Kubernetes dashboard. This allows for easy access to the dashboard and management of deployed applications. Automatically deploy the Kubernetes dashboard during cluster creation, create the cluster using the API, and set the iskubernetesDashboardEnabled attribute to true. This ensures that the Kubernetes dashboard is automatically deployed and accessible. Manually deploy the Kubernetes dashboard on an existing cluster and access it using the appropriate URL. This involves deploying the dashboard manually and accessing it through the specified URL, which allows for management and troubleshooting of applications. Using these actions, the DevOps Engineer can effectively manage and troubleshoot applications deployed on OKE, leveraging the Kubernetes dashboard for enhanced visibility and control.

Explanation

The correct approach to upgrade an Oracle Container Engine for Kubernetes (OKE) cluster to a newer version of Kubernetes is to first upgrade the control plane and then upgrade the node pools. Here are the steps to follow: Upgrade the control plane: Initiate the upgrade process for the control plane using the OCI Console, CLI, or API. This upgrade will update the Kubernetes control plane components running in the master nodes of the cluster. Upgrade the node pools: After the control plane upgrade is completed, you can proceed to upgrade the node pools. A node pool is a set of worker nodes within the cluster. You can upgrade the node pools one at a time or simultaneously, depending on your requirements and cluster configuration. By following this approach, you ensure that the control plane is upgraded first, which ensures compatibility and stability with the new version of Kubernetes. Afterward, you can upgrade the node pools to ensure all worker nodes are running the latest version of Kubernetes. It is important to note that before performing any upgrades, it is recommended to review the release notes and upgrade documentation provided by Oracle for any specific instructions or considerations related to the version you are upgrading to. Reference: https://docs.oracle.com/en-us/iaas/Content/ContEng/Concepts/contengaboutupgradingclusters.htm

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.