Pass the Oracle Cloud Infrastructure 1z0-1084-26 Questions and answers with ExamsMirror

OCI Queue requires the receipt returned when the message was obtained through GetMessages to delete that specific delivery. Oracle explicitly documents the command oci queue messages delete-message --message-receipt < message_receipt > --queue-id < queue_OCID > for deleting one message. A message ID alone is insufficient because deletion operates against the active message receipt associated with the current delivery and visibility state. Oracle provides the separate delete-messages operation for batch deletion and a queue purge operation for removing all messages. Therefore, options A and C use an invalid delete subcommand, while B incorrectly supplies --message-id. Option D exactly matches the current OCI CLI syntax and required receipt-based deletion mechanism.

Oracle explicitly lists Kubernetes Cluster Autoscaler among the deploymentsnot supported when using OKE virtual nodes. Virtual nodes provide a serverless data-plane model in which Oracle manages the underlying compute capacity, so customers do not resize a conventional virtual-node pool through Kubernetes Cluster Autoscaler. Cluster Autoscaler remains applicable to managed node pools, where worker-node capacity can be increased or decreased according to scheduling demand. Oracle also identifies Vertical Pod Autoscaler as unsupported on virtual nodes, while Metrics Server is supported through a deployment method adapted for virtual nodes. Horizontal Pod Autoscaler operates at the pod/deployment level and can adjust replica counts without requiring customers to resize virtual-node infrastructure. Therefore, B is the NOT valid statement because it incorrectly claims Cluster Autoscaler can resize both managed and virtual node pools.

Oracle provides a dedicated logging-search OCI CLI command group for querying indexed log content. The documented syntax is oci logging-search search-logs, with --search-query, --time-start, and --time-end as the principal parameters required to define the Logging Query Language expression and search interval. The ordinary oci logging command group is used for administration of logs and log groups rather than searching their contents. logging-query is not a valid top-level OCI CLI service group, and --query-string is not the documented search parameter. Therefore, option B exactly matches Oracle ' s current CLI command reference for submitting a programmatic log search across custom or service logs.

Oracle explicitly defines the default batchAtomicity setting for PostMetricData asNON_ATOMIC. With NON_ATOMIC validation, at least one metric object in the request must pass validation for valid metric objects to be accepted. Individual objects that fail validation are rejected and identified in the returned summary with their associated errors. By comparison, ATOMIC requires every metric object in the batch to pass validation; if one object fails, the whole request fails validation. PARTIAL_COMMIT and TRANSACTIONAL are not supported values for the batchAtomicity parameter. The supported enumeration consists of ATOMIC and NON_ATOMIC, with NON_ATOMIC being the documented default. Therefore, B accurately reflects OCI Monitoring ' s default custom-metric ingestion behavior.

Oracle documents two predefined OKE Block Volume storage classes: oci-bv, which uses the CSI volume plugin, and oci, which uses the older FlexVolume plugin. For clusterscreated using Kubernetes version 1.24 or later, Oracle initially configures oci-bv as the default StorageClass. Because Kubernetes 1.28 is later than 1.24, a newly created 1.28 cluster uses oci-bv when a PVC omits storageClassName. Oracle recommends the CSI plugin and continues adding new functionality to it. An important exception applies to clusters originally created with Kubernetes 1.23 or earlier and subsequently upgraded—their original oci default can remain unchanged. Under the scenario stated, however, the initial default is oci-bv.

Explanation

The necessary configuration to provide access to a private repository in OCI Registry (OCIR) from OCI Container Engine for Kubernetes (OKE) is to create a docker-registry secret for OCIR with an identity Auth Token on the cluster and specify the imagePullSecret property in the application deployment manifest. Here ' s the breakdown of the steps: Create a docker-registry secret for OCIR with an identity Auth Token: In order to authenticate with the private repository in OCIR, you need to create a secret in your OKE cluster that contains the necessary credentials. This can be done by generating an identity Auth Token from the OCI Console and creating a secret in the cluster using the kubectl command. Specify the imagePullSecret property in the application deployment manifest: In your application ' s deployment manifest (such as a Kubernetes Deployment or StatefulSet YAML file), you need to include the imagePullSecret property and specify the name of the secret you created in the previous step. This allows the OKE cluster to use the credentials from the secret to pull the docker image from the private repository in OCIR during deployment. By following these steps, you can ensure that your OKE cluster has the necessary access to the private repository in OCIR, and your application can successfully pull the required docker image during deployment.

Explanation

The statement that is incorrect is: " The request does not require an Authorization header. " In order to POST messages to a stream in the OCI Streaming service using OCI APIs, the request does require an Authorization header. The Authorization header is used to provide authentication and ensure the request is authorized to access the stream. The correct approach is to include the Authorization header in the request, along with other required headers such as x-content-sha256, content-type, and content-length. Therefore, the incorrect statement is that the request does not require an Authorization header.\

Explanation

The correct value for the " type " field in the API deployment specification is " STOCK_RESPONSE_BACKEND " . By setting the " type " to " STOCK_RESPONSE_BACKEND " , you are indicating that the backend for the specified route should return a pre-defined response. This type of backend is commonly used when you want a specific response to be returned consistently, regardless of the actual backend service implementation. In this case, the API deployment specification is configured to have a single route with the path " /hello " and the method " GET " . The backend section specifies the type as " STOCK_RESPONSE_BACKEND " . Additionally, it defines the response status code as 200, sets the " Content-Type " header to " application/json " , and provides the JSON content in the " body " field. Using this configuration, any request to the " /hello " path with the " GET " method will always receive a consistent JSON response with the content " { " myjson " : " consistent response " } " .

Oracle documents oci ce cluster create-kubeconfig as the OCI CLI operation used to create the Kubernetes configuration file required for access to an OKE cluster. The command accepts the cluster OCID through --cluster-id and, by default, writes or updates $HOME/.kube/config. The resulting kubeconfig contains the cluster endpoint and the OCI CLI authentication mechanism that enables kubectl to obtain authentication tokens when communicating with the Kubernetes API server. Commands named update-kubeconfig, download-kubeconfig, and generate-kubeconfig are not valid OCI CLI subcommands for this operation. Therefore, oci ce cluster create-kubeconfig is the documented command for establishing the local kubeconfig required to administer an OKE cluster through kubectl.

Persistent container data must be stored outside the container ' s ephemeral writable layer. Docker volumes provide Docker-managed storage that remains independently available from the lifecycle of an individual container. Bind mounts provide another persistence mechanism by mapping a specified host file or directory directly into the container. Oracle ' s Docker documentation demonstrates both data volumes and host-path mounts for externalizing files from containers and preserving them independently. The writable container layer is removed with the container, a tmpfs mount stores data in volatile memory rather than persistent disk, and Docker image layers are immutable and cannot receive normal runtime database writes. Therefore, Docker volumes and bind mounts are the two valid persistence approaches described.