EX280 Cluster Installation And Management — All Questions With Answers

Question 1easymultiple choice

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An administrator needs to modify the SSH key used for debugging worker nodes across an OpenShift 4.14 cluster. Which resource type should the administrator edit or create to apply this change cluster-wide to all worker nodes?

Question 2hardmultiple choice

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During an upgrade of an OpenShift 4.14 cluster using the Cluster Version Operator (CVO), the upgrade status stalls at a specific component. The administrator wants to check the detailed error messages and reconciling loops of the CVO itself. Where should the administrator look?

Question 3easymultiple choice

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Which OpenShift 4.14 operator provides a catalog of certified third-party and Red Hat operators available for cluster installation?

Question 4easymultiple choice

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When draining a worker node in OpenShift 4.14, which type of pod running on the node will typically be blocked from eviction unless explicitly ignored or handled?

Question 5hardmultiple choice

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An administrator wants to add a custom CA certificate trust bundle to all worker nodes in an OpenShift 4.14 cluster so that internal container registries can be accessed securely. Which object should the administrator configure?

Question 6hardmultiple choice

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An administrator is setting up a new custom MachineConfigPool for GPU-enabled worker nodes. After creating the MachineConfigPool resource, the administrator creates a MachineConfig that should apply exclusively to these nodes. What must the administrator include in the MachineConfig to ensure it only applies to the GPU pool?

Question 7hardmultiple choice

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An administrator needs to perform an offline (disconnected) upgrade of an OpenShift 4.14 cluster where nodes have no direct internet access. Which resource must be configured in the cluster to supply the release payload images from a local mirror registry?

Question 8hardmultiple choice

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An administrator wants to perform a manual rollback of a MachineConfig change that caused issues on worker nodes. What is the standard way to revert to the previous configuration using the Machine Config Operator?

Question 9hardmultiple choice

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An administrator wants to temporarily disable a MachineHealthCheck so that node maintenance can be performed without triggering automated node deletion. How should this be done?

Question 10hardmultiple choice

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An administrator is managing an OpenShift 4.14 cluster and notices that a newly installed Operator fails to start because it requires a specific version of Kubernetes that is older than what OpenShift 4.14 provides. How does OLM handle Operator compatibility checks during subscription creation?

Question 11hardmultiple choice

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An administrator is troubleshooting an Operator installed via OperatorHub whose pods are failing to pull images because the Operator's subscription namespace lacks access to the global pull secret. How can the administrator configure OLM to use a custom pull secret for an Operator in a specific namespace?

Question 12hardmultiple choice

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An administrator has successfully updated the global pull secret in openshift-config/pull-secret. How does the Machine Config Operator propagate this new pull secret to all existing worker nodes in the cluster?

Question 13hardmulti select

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An administrator is configuring Operator subscriptions in OpenShift 4.14 using OLM. Which THREE parameters can be configured within a Subscription custom resource? (Choose THREE)

Question 14hardmulti select

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An administrator is configuring a disconnected (air-gapped) OpenShift 4.14 cluster installation. Which THREE components or resources are critical for successfully managing container image mirroring and catalog sources in this environment? (Choose THREE)

Question 15easymulti select

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Which TWO objects are used by OLM to manage Operator catalogs and sources of software in OpenShift 4.14? (Choose TWO)

Question 16hardmulti select

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An administrator is examining the cluster architecture and core operators of OpenShift 4.14. Which THREE core operators run as part of the control plane and platform management? (Choose THREE)

Question 17easymulti select

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Which TWO methods can an administrator use to view the nodes currently present in an OpenShift 4.14 cluster along with their roles and versions? (Choose TWO)

Question 18mediummulti select

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An administrator wants to inspect or modify the OperatorGroup for a namespace in OpenShift 4.14. Which TWO characteristics or settings are defined by an OperatorGroup? (Choose TWO)

Question 19mediummultiple choice

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An administrator is preparing an OpenShift Container Platform 4.14 cluster for a controlled upgrade during a maintenance window. The administrator wants the Cluster Version Operator to stop automatically applying new updates after the desired version is reached, but still allow the administrator to manually trigger future upgrades. Which action should the administrator take?

Question 20mediummultiple choice

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An administrator is preparing to install an OpenShift Container Platform 4.14 cluster on bare metal. The administrator wants to create an ignition config that embeds a custom MachineConfig for configuring a chrony time server on all nodes. Which command should the administrator use to generate the ignition config?

Question 21easymultiple choice

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An administrator has a running OpenShift Container Platform 4.14 cluster and wants to add three new worker nodes to an existing MachineSet. After running `oc scale machineset <machineset-name> --replicas=5` in the `openshift-machine-api` namespace, the administrator notices that two new Machines are created but the corresponding nodes do not appear in `oc get nodes` after several minutes. Which command should the administrator run FIRST to investigate why the new nodes are not joining the cluster?

Question 22easymultiple choice

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An administrator is planning to install an OpenShift Container Platform 4.14 cluster on AWS using the installer-provisioned infrastructure (IPI) method. The administrator needs to ensure that the cluster can automatically scale worker nodes based on demand. Which OpenShift component should the administrator configure to enable automatic scaling?

Question 23mediummultiple choice

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An administrator is managing an OpenShift Container Platform 4.14 cluster and needs to add a new worker node to an existing MachineSet. The administrator has created a new Machine object with the appropriate provider specification. What is the next step to ensure the MachineSet recognizes and manages this new Machine?

Question 24hardmultiple choice

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An administrator is managing an OpenShift Container Platform 4.14 cluster that uses the `vSphere` platform. The administrator needs to add a new worker node by scaling up a MachineSet. After scaling, the new Machine is created but the node fails to join the cluster. The administrator suspects that the node's ignition configuration or network settings are incorrect. Which command should the administrator use to retrieve the console output of the new node to diagnose the boot failure?

Question 25hardmultiple choice

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An administrator is configuring a new OpenShift Container Platform 4.14 cluster and wants to ensure that etcd is properly backed up. The administrator plans to use the cluster-etcd-operator to perform backups. Which resource must be created to configure automatic etcd backups?

Question 26easymultiple choice

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Which component in OpenShift 4.14 is responsible for orchestrating the upgrade of the entire cluster from one minor version to another?

Question 27hardmultiple choice

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An administrator wants to apply kernel arguments to all worker nodes in an OpenShift 4.14 cluster using the Machine Config Operator. After creating a new MachineConfig object, the administrator notices that the worker nodes are not updating and the MachineConfigPool status shows 'Updating=False'. What is the most likely cause?

Question 28mediummultiple choice

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An administrator needs to temporarily prevent the Machine Config Operator from applying pending MachineConfig changes to the worker nodes while performing troubleshooting. How should the administrator accomplish this?

Question 29hardmultiple choice

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An administrator running OpenShift 4.14 wants to configure automatic approval for an Operator subscription updates using the Operator Lifecycle Manager. Which field and value in the Subscription resource must be set?

Question 30mediummultiple choice

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An administrator needs to perform a graceful maintenance reboot on a worker node named worker-01 in an OpenShift 4.14 cluster without causing application downtime for stateless deployments. Which combination of actions should the administrator perform first?

Question 31mediummultiple choice

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An OpenShift 4.14 cluster administrator has installed an Operator from OperatorHub into a custom namespace using a Subscription. The administrator notices that the Operator pod is not being created. Upon checking the Subscription, the installation mode is set to AllNamespaces, but the Operator target namespace is restricted. Which Operator Lifecycle Manager (OLM) object should the administrator inspect to troubleshoot why the CSV (ClusterServiceVersion) is not installing?

Question 32mediummultiple choice

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An administrator notices that a worker node is in a 'NotReady' state due to a storage failure. The administrator successfully replaces the underlying physical machine and wants to clear the old node object from the OpenShift 4.14 cluster. Which command should be used?

Question 33easymultiple choice

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What is the primary function of the Machine Config Operator (MCO) in OpenShift 4.14?

Question 34hardmultiple choice

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An administrator needs to configure custom container runtime parameters (such as the maximum pod log size or maximum number of processes per container) across all worker nodes in an OpenShift 4.14 cluster. Which custom resource should the administrator create?

Question 35hardmultiple choice

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An administrator needs to ensure that if a worker node freezes or becomes unresponsive for more than 5 minutes, the cluster automatically remediates it by deleting and recreating the underlying virtual machine instance. Which OpenShift 4.14 feature should the administrator configure?

Question 36mediummultiple choice

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An administrator is troubleshooting a failed cluster upgrade in OpenShift 4.14. The upgrade channel is set to 'stable-4.14', but the cluster refuses to update to the latest target version. The administrator runs 'oc get clusterversion' and notes that a specific ClusterOperator reports 'Degraded=True'. What is the recommended next step?

Question 37mediummultiple choice

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An administrator wants to view the available recommended upgrade paths for an OpenShift 4.14 cluster from the command line. Which command should the administrator run?

Question 38easymultiple choice

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Which namespace houses the core Cluster Version Operator (CVO) in an OpenShift 4.14 cluster?

Question 39mediummultiple choice

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An administrator wants to check whether any worker nodes in an OpenShift 4.14 cluster are currently unschedulable (cordoned). Which command provides this information quickly?

Question 40hardmultiple choice

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An administrator has modified a KubeletConfig resource to adjust the pod eviction thresholds on worker nodes. After applying the change, the administrator observes that some worker nodes are updating while others belonging to a custom worker pool are not. What is the most likely reason?

Question 41hardmultiple choice

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An administrator has successfully installed an Operator via OperatorHub, but the Operator's CSV (ClusterServiceVersion) status is stuck at 'Pending'. Upon investigating, the administrator discovers that the required CustomResourceDefinitions (CRDs) have conflicting versions with a previously deleted Operator. How can the administrator forcefully clean up orphaned CRDs if OLM fails to remove them?

Question 42easymultiple choice

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Which custom resource defines a group of nodes (such as all worker nodes or a custom compute pool) that share a common MachineConfig in OpenShift 4.14?

Question 43mediummultiple choice

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An administrator needs to inspect the current update channel and version of an OpenShift 4.14 cluster. Which command provides this status directly?

Question 44easymultiple choice

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What is the purpose of the 'oc adm drain' command during cluster maintenance?

Question 45mediummultiple choice

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An administrator installed an Operator via OperatorHub and selected a specific update channel. Later, the administrator wants to switch the Subscription to a different update channel. How should this be performed?

Question 46hardmultiple choice

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An administrator is inspecting an OpenShift 4.14 cluster and notices that the MachineConfigPool for workers is in a degraded state because a MachineConfig failed to apply. Where should the administrator look to find the exact error encountered by the Machine Config Daemon on the affected nodes?

Question 47easymultiple choice

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Which OpenShift 4.14 command is used to uncordon a worker node and return it to a schedulable state after maintenance?

Question 48mediummultiple choice

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An administrator wants to check the health and availability status of all core OpenShift 4.14 cluster operators (such as authentication, ingress, and dns). Which command should be used?

Question 49easymultiple choice

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What is the primary role of Operator Lifecycle Manager (OLM) in OpenShift 4.14?

Question 50mediummultiple choice

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An administrator wants to check why a specific MachineConfigPool is taking a long time to complete an update. Which status condition on the MachineConfigPool indicates that nodes are currently being updated?

Question 51easymultiple choice

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Which namespace contains the Machine Config Operator (MCO) and its associated daemon pods in OpenShift 4.14?

Question 52easymultiple choice

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Which component in OpenShift 4.14 manages the creation and deletion of compute machines (VMs or physical servers) on cloud providers or bare metal?

Question 53mediummultiple choice

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An administrator needs to verify that the cluster autoscaler is successfully scaling worker nodes in response to pending pods. Which custom resource should the administrator inspect to check the autoscaler configuration and status?

Question 54mediummultiple choice

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An administrator needs to check the status of all MachineSets in an OpenShift 4.14 cluster to see how many worker machines are currently provisioned and running. Which command should be used?

Question 55mediummultiple choice

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An administrator wants to inspect the ignition configuration generated for worker nodes by the Machine Config Operator. Which command or resource should the administrator examine?

Question 56easymultiple choice

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What is the primary function of a MachineSet in an OpenShift 4.14 cluster running on a cloud provider?

Question 57hardmultiple choice

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An administrator has added a new custom worker MachineConfigPool and wants existing worker nodes to be migrated into this new pool based on specific labels. How does an administrator move a node from the default worker pool to a custom MachineConfigPool?

Question 58easymultiple choice

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Which component in OpenShift 4.14 serves as the API entry point for managing MachineAPI resources like Machines and MachineSets?

Question 59mediummultiple choice

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An administrator wants to verify if the OpenShift cluster upgrade to version 4.14 has successfully completed for all core components. Which status field in the ClusterVersion resource should show 'True' for the progressing and available conditions?

Question 60easymultiple choice

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Which OpenShift 4.14 command allows an administrator to gather cluster-wide diagnostic logs and configuration data for support cases?

Question 61mediummultiple choice

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An administrator needs to update the global pull secret for an OpenShift 4.14 cluster so that nodes can pull images from a new authenticated private registry. Which resource stores the global pull secret?

Question 62easymultiple choice

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Which component in OpenShift 4.14 coordinates the creation of certificates for cluster components and worker nodes?

Question 63mediummultiple choice

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An administrator wants to check the status of all Certificate Signing Requests (CSRs) in an OpenShift 4.14 cluster, specifically looking for pending node certificates. Which command should be used?

Question 64easymulti select

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An administrator is preparing to perform maintenance on worker nodes in an OpenShift 4.14 cluster. Which TWO commands or actions are part of the standard workflow to safely prepare a node for maintenance? (Choose TWO)

Question 65hardmulti select

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An administrator wants to customize worker node behavior in an OpenShift 4.14 cluster using the Machine Config Operator. Which THREE custom resources are natively provided and managed by the MCO for node customization? (Choose THREE)

Question 66mediummulti select

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An administrator is troubleshooting an Operator installation issue in OpenShift 4.14. Which TWO resources or logs should the administrator examine to diagnose OLM operator subscription and CSV issues? (Choose TWO)

Question 67easymulti select

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Which TWO commands can an administrator use to check the overall status or health of core OpenShift 4.14 cluster operators? (Choose TWO)

Question 68mediummulti select

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An administrator needs to troubleshoot an upgrade failure in OpenShift 4.14. Which TWO actions or diagnostic steps should the administrator take? (Choose TWO)

Question 69hardmulti select

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An administrator is configuring automated node remediation and scaling in OpenShift 4.14. Which THREE objects or custom resources are involved in machine management, autoscaling, and health checking? (Choose THREE)

Question 70mediummulti select

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An administrator wants to verify node configuration application status. Which TWO indicators show that a MachineConfigPool has successfully finished applying a new MachineConfig? (Choose TWO)

Question 71easymulti select

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Which TWO actions can an administrator perform using the 'oc adm' command set related to cluster management? (Choose TWO)

Question 72easymulti select

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Which TWO namespaces are standard system namespaces in OpenShift 4.14 that contain core cluster operators and platform components? (Choose TWO)

Question 73mediummulti select

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An administrator needs to identify worker nodes that require attention during an upgrade or maintenance. Which TWO conditions or states on a node object indicate potential issues or special maintenance states? (Choose TWO)

Question 74easymulti select

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Which TWO methods can administrators use to access the OpenShift 4.14 web console or CLI for cluster management? (Choose TWO)

Question 75mediummulti select

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An administrator wants to modify the default kubelet parameters (such as maximum pods per core or eviction hard thresholds) across worker nodes. Which TWO steps or resources are involved in this process? (Choose TWO)

Question 76hardmulti select

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An administrator is planning an OpenShift 4.14 cluster upgrade and wants to ensure that specific safety checks and conditions are met before proceeding. Which THREE conditions must be true for an upgrade to proceed smoothly? (Choose THREE)

Question 77mediummulti select

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An administrator wants to configure automated remediation for worker nodes that become unresponsive or experience hardware failure. Which TWO configurations or resources are required for a MachineHealthCheck to function properly? (Choose TWO)

Question 78mediummulti select

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An administrator wants to prevent automatic updates for an Operator installed via OLM while still allowing manual installation of new versions when desired. Which TWO actions or configurations should be performed? (Choose TWO)

Question 79easymulti select

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Which TWO commands or tools can an administrator use to inspect cluster logs or events when troubleshooting node or pod issues? (Choose TWO)

Question 80hardmulti select

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An administrator is troubleshooting a custom MachineConfig that failed to apply across a worker MachineConfigPool. Which THREE diagnostic steps or resources should the administrator check? (Choose THREE)

Question 81hardmulti select

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An administrator is managing cluster machine configurations and needs to understand how Ignition configuration files are processed. Which THREE statements are correct regarding Ignition and the Machine Config Operator in OpenShift 4.14? (Choose THREE)

Question 82mediummulti select

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An administrator wants to check the status of Machine API provisioning and verify that all machines are in a running state. Which TWO commands or resource inspections should the administrator perform? (Choose TWO)

Question 83hardmulti select

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An administrator is managing operator subscriptions and wants to ensure that an operator is automatically updated when new versions are released in the channel. Which THREE conditions or configuration settings must be satisfied? (Choose THREE)

Question 84easymulti select

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Which TWO files or directories are commonly configured or injected via MachineConfig objects for node customization? (Choose TWO)

Question 85easymulti select

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Which TWO tasks are typically performed by an OpenShift cluster administrator when managing worker node lifecycles? (Choose TWO)

Question 86mediummulti select

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An administrator is investigating why cluster operator upgrades are failing. Which TWO locations or commands provide detailed diagnostic information about cluster operators? (Choose TWO)

Question 87hardmulti select

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An administrator needs to configure secure access to a private registry for both node image pulls and OLM operator deployments. Which THREE actions or resources are required across the cluster? (Choose THREE)

Question 88mediummultiple choice

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An administrator is preparing to upgrade an OpenShift Container Platform 4.14 cluster from version 4.13.12 to 4.14.6. Before starting the upgrade, the administrator wants to ensure that all cluster Operators are healthy and that no prerequisites are blocking the upgrade. Which command should the administrator run to view the current upgrade status and any available updates?

Question 89hardmulti select

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An administrator is troubleshooting an OpenShift Container Platform 4.14 cluster that is failing to upgrade. The Cluster Version Operator (CVO) reports that the upgrade is blocked due to an unhealthy ClusterOperator. Which TWO commands should the administrator use to identify the specific ClusterOperator and its error condition? (Choose two.)

Question 90mediummultiple choice

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An administrator is managing an OpenShift Container Platform 4.14 cluster on AWS. The administrator wants to configure the cluster so that when a worker node is terminated due to a spot instance interruption, the MachineSet automatically replaces it. Which MachineSet configuration parameter should the administrator verify to ensure that new Machines are created to replace terminated ones?

Question 1easymultiple choice

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An administrator needs to modify the SSH key used for debugging worker nodes across an OpenShift 4.14 cluster. Which resource type should the administrator edit or create to apply this change cluster-wide to all worker nodes?

Question 2hardmultiple choice

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During an upgrade of an OpenShift 4.14 cluster using the Cluster Version Operator (CVO), the upgrade status stalls at a specific component. The administrator wants to check the detailed error messages and reconciling loops of the CVO itself. Where should the administrator look?

Question 3easymultiple choice

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Which OpenShift 4.14 operator provides a catalog of certified third-party and Red Hat operators available for cluster installation?

Question 4easymultiple choice

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When draining a worker node in OpenShift 4.14, which type of pod running on the node will typically be blocked from eviction unless explicitly ignored or handled?

Question 5hardmultiple choice

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An administrator wants to add a custom CA certificate trust bundle to all worker nodes in an OpenShift 4.14 cluster so that internal container registries can be accessed securely. Which object should the administrator configure?

Question 6hardmultiple choice

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An administrator is setting up a new custom MachineConfigPool for GPU-enabled worker nodes. After creating the MachineConfigPool resource, the administrator creates a MachineConfig that should apply exclusively to these nodes. What must the administrator include in the MachineConfig to ensure it only applies to the GPU pool?

Question 7hardmultiple choice

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An administrator needs to perform an offline (disconnected) upgrade of an OpenShift 4.14 cluster where nodes have no direct internet access. Which resource must be configured in the cluster to supply the release payload images from a local mirror registry?

Question 8hardmultiple choice

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An administrator wants to perform a manual rollback of a MachineConfig change that caused issues on worker nodes. What is the standard way to revert to the previous configuration using the Machine Config Operator?

Question 9hardmultiple choice

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An administrator wants to temporarily disable a MachineHealthCheck so that node maintenance can be performed without triggering automated node deletion. How should this be done?

Question 10hardmultiple choice

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An administrator is managing an OpenShift 4.14 cluster and notices that a newly installed Operator fails to start because it requires a specific version of Kubernetes that is older than what OpenShift 4.14 provides. How does OLM handle Operator compatibility checks during subscription creation?

Question 11hardmultiple choice

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An administrator is troubleshooting an Operator installed via OperatorHub whose pods are failing to pull images because the Operator's subscription namespace lacks access to the global pull secret. How can the administrator configure OLM to use a custom pull secret for an Operator in a specific namespace?

Question 12hardmultiple choice

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An administrator has successfully updated the global pull secret in openshift-config/pull-secret. How does the Machine Config Operator propagate this new pull secret to all existing worker nodes in the cluster?

Question 13hardmulti select

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An administrator is configuring Operator subscriptions in OpenShift 4.14 using OLM. Which THREE parameters can be configured within a Subscription custom resource? (Choose THREE)

Question 14hardmulti select

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An administrator is configuring a disconnected (air-gapped) OpenShift 4.14 cluster installation. Which THREE components or resources are critical for successfully managing container image mirroring and catalog sources in this environment? (Choose THREE)

Question 15easymulti select

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Which TWO objects are used by OLM to manage Operator catalogs and sources of software in OpenShift 4.14? (Choose TWO)

Question 16hardmulti select

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An administrator is examining the cluster architecture and core operators of OpenShift 4.14. Which THREE core operators run as part of the control plane and platform management? (Choose THREE)

Question 17easymulti select

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Which TWO methods can an administrator use to view the nodes currently present in an OpenShift 4.14 cluster along with their roles and versions? (Choose TWO)

Question 18mediummulti select

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An administrator wants to inspect or modify the OperatorGroup for a namespace in OpenShift 4.14. Which TWO characteristics or settings are defined by an OperatorGroup? (Choose TWO)

Question 19mediummultiple choice

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An administrator is preparing an OpenShift Container Platform 4.14 cluster for a controlled upgrade during a maintenance window. The administrator wants the Cluster Version Operator to stop automatically applying new updates after the desired version is reached, but still allow the administrator to manually trigger future upgrades. Which action should the administrator take?

Question 20mediummultiple choice

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An administrator is preparing to install an OpenShift Container Platform 4.14 cluster on bare metal. The administrator wants to create an ignition config that embeds a custom MachineConfig for configuring a chrony time server on all nodes. Which command should the administrator use to generate the ignition config?

Question 21easymultiple choice

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An administrator has a running OpenShift Container Platform 4.14 cluster and wants to add three new worker nodes to an existing MachineSet. After running `oc scale machineset <machineset-name> --replicas=5` in the `openshift-machine-api` namespace, the administrator notices that two new Machines are created but the corresponding nodes do not appear in `oc get nodes` after several minutes. Which command should the administrator run FIRST to investigate why the new nodes are not joining the cluster?

Question 22easymultiple choice

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An administrator is planning to install an OpenShift Container Platform 4.14 cluster on AWS using the installer-provisioned infrastructure (IPI) method. The administrator needs to ensure that the cluster can automatically scale worker nodes based on demand. Which OpenShift component should the administrator configure to enable automatic scaling?

Question 23mediummultiple choice

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An administrator is managing an OpenShift Container Platform 4.14 cluster and needs to add a new worker node to an existing MachineSet. The administrator has created a new Machine object with the appropriate provider specification. What is the next step to ensure the MachineSet recognizes and manages this new Machine?

Question 24hardmultiple choice

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An administrator is managing an OpenShift Container Platform 4.14 cluster that uses the `vSphere` platform. The administrator needs to add a new worker node by scaling up a MachineSet. After scaling, the new Machine is created but the node fails to join the cluster. The administrator suspects that the node's ignition configuration or network settings are incorrect. Which command should the administrator use to retrieve the console output of the new node to diagnose the boot failure?

Question 25hardmultiple choice

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An administrator is configuring a new OpenShift Container Platform 4.14 cluster and wants to ensure that etcd is properly backed up. The administrator plans to use the cluster-etcd-operator to perform backups. Which resource must be created to configure automatic etcd backups?

Question 26easymultiple choice

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Which component in OpenShift 4.14 is responsible for orchestrating the upgrade of the entire cluster from one minor version to another?

Question 27hardmultiple choice

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An administrator wants to apply kernel arguments to all worker nodes in an OpenShift 4.14 cluster using the Machine Config Operator. After creating a new MachineConfig object, the administrator notices that the worker nodes are not updating and the MachineConfigPool status shows 'Updating=False'. What is the most likely cause?

Question 28mediummultiple choice

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An administrator needs to temporarily prevent the Machine Config Operator from applying pending MachineConfig changes to the worker nodes while performing troubleshooting. How should the administrator accomplish this?

Question 29hardmultiple choice

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An administrator running OpenShift 4.14 wants to configure automatic approval for an Operator subscription updates using the Operator Lifecycle Manager. Which field and value in the Subscription resource must be set?

Question 30mediummultiple choice

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An administrator needs to perform a graceful maintenance reboot on a worker node named worker-01 in an OpenShift 4.14 cluster without causing application downtime for stateless deployments. Which combination of actions should the administrator perform first?

Question 31mediummultiple choice

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An OpenShift 4.14 cluster administrator has installed an Operator from OperatorHub into a custom namespace using a Subscription. The administrator notices that the Operator pod is not being created. Upon checking the Subscription, the installation mode is set to AllNamespaces, but the Operator target namespace is restricted. Which Operator Lifecycle Manager (OLM) object should the administrator inspect to troubleshoot why the CSV (ClusterServiceVersion) is not installing?

Question 32mediummultiple choice

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An administrator notices that a worker node is in a 'NotReady' state due to a storage failure. The administrator successfully replaces the underlying physical machine and wants to clear the old node object from the OpenShift 4.14 cluster. Which command should be used?

Question 33easymultiple choice

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What is the primary function of the Machine Config Operator (MCO) in OpenShift 4.14?

Question 34hardmultiple choice

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An administrator needs to configure custom container runtime parameters (such as the maximum pod log size or maximum number of processes per container) across all worker nodes in an OpenShift 4.14 cluster. Which custom resource should the administrator create?

Question 35hardmultiple choice

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An administrator needs to ensure that if a worker node freezes or becomes unresponsive for more than 5 minutes, the cluster automatically remediates it by deleting and recreating the underlying virtual machine instance. Which OpenShift 4.14 feature should the administrator configure?

Question 36mediummultiple choice

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An administrator is troubleshooting a failed cluster upgrade in OpenShift 4.14. The upgrade channel is set to 'stable-4.14', but the cluster refuses to update to the latest target version. The administrator runs 'oc get clusterversion' and notes that a specific ClusterOperator reports 'Degraded=True'. What is the recommended next step?

Question 37mediummultiple choice

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An administrator wants to view the available recommended upgrade paths for an OpenShift 4.14 cluster from the command line. Which command should the administrator run?

Question 38easymultiple choice

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Which namespace houses the core Cluster Version Operator (CVO) in an OpenShift 4.14 cluster?

Question 39mediummultiple choice

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An administrator wants to check whether any worker nodes in an OpenShift 4.14 cluster are currently unschedulable (cordoned). Which command provides this information quickly?

Question 40hardmultiple choice

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An administrator has modified a KubeletConfig resource to adjust the pod eviction thresholds on worker nodes. After applying the change, the administrator observes that some worker nodes are updating while others belonging to a custom worker pool are not. What is the most likely reason?

Question 41hardmultiple choice

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An administrator has successfully installed an Operator via OperatorHub, but the Operator's CSV (ClusterServiceVersion) status is stuck at 'Pending'. Upon investigating, the administrator discovers that the required CustomResourceDefinitions (CRDs) have conflicting versions with a previously deleted Operator. How can the administrator forcefully clean up orphaned CRDs if OLM fails to remove them?

Question 42easymultiple choice

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Which custom resource defines a group of nodes (such as all worker nodes or a custom compute pool) that share a common MachineConfig in OpenShift 4.14?

Question 43mediummultiple choice

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An administrator needs to inspect the current update channel and version of an OpenShift 4.14 cluster. Which command provides this status directly?

Question 44easymultiple choice

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What is the purpose of the 'oc adm drain' command during cluster maintenance?

Question 45mediummultiple choice

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An administrator installed an Operator via OperatorHub and selected a specific update channel. Later, the administrator wants to switch the Subscription to a different update channel. How should this be performed?

Question 46hardmultiple choice

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An administrator is inspecting an OpenShift 4.14 cluster and notices that the MachineConfigPool for workers is in a degraded state because a MachineConfig failed to apply. Where should the administrator look to find the exact error encountered by the Machine Config Daemon on the affected nodes?

Question 47easymultiple choice

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Which OpenShift 4.14 command is used to uncordon a worker node and return it to a schedulable state after maintenance?

Question 48mediummultiple choice

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An administrator wants to check the health and availability status of all core OpenShift 4.14 cluster operators (such as authentication, ingress, and dns). Which command should be used?

Question 49easymultiple choice

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What is the primary role of Operator Lifecycle Manager (OLM) in OpenShift 4.14?

Question 50mediummultiple choice

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An administrator wants to check why a specific MachineConfigPool is taking a long time to complete an update. Which status condition on the MachineConfigPool indicates that nodes are currently being updated?

Question 51easymultiple choice

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Which namespace contains the Machine Config Operator (MCO) and its associated daemon pods in OpenShift 4.14?

Question 52easymultiple choice

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Which component in OpenShift 4.14 manages the creation and deletion of compute machines (VMs or physical servers) on cloud providers or bare metal?

Question 53mediummultiple choice

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An administrator needs to verify that the cluster autoscaler is successfully scaling worker nodes in response to pending pods. Which custom resource should the administrator inspect to check the autoscaler configuration and status?

Question 54mediummultiple choice

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An administrator needs to check the status of all MachineSets in an OpenShift 4.14 cluster to see how many worker machines are currently provisioned and running. Which command should be used?

Question 55mediummultiple choice

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An administrator wants to inspect the ignition configuration generated for worker nodes by the Machine Config Operator. Which command or resource should the administrator examine?

Question 56easymultiple choice

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What is the primary function of a MachineSet in an OpenShift 4.14 cluster running on a cloud provider?

Question 57hardmultiple choice

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An administrator has added a new custom worker MachineConfigPool and wants existing worker nodes to be migrated into this new pool based on specific labels. How does an administrator move a node from the default worker pool to a custom MachineConfigPool?

Question 58easymultiple choice

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Which component in OpenShift 4.14 serves as the API entry point for managing MachineAPI resources like Machines and MachineSets?

Question 59mediummultiple choice

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An administrator wants to verify if the OpenShift cluster upgrade to version 4.14 has successfully completed for all core components. Which status field in the ClusterVersion resource should show 'True' for the progressing and available conditions?

Question 60easymultiple choice

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Which OpenShift 4.14 command allows an administrator to gather cluster-wide diagnostic logs and configuration data for support cases?

Question 61mediummultiple choice

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An administrator needs to update the global pull secret for an OpenShift 4.14 cluster so that nodes can pull images from a new authenticated private registry. Which resource stores the global pull secret?

Question 62easymultiple choice

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Which component in OpenShift 4.14 coordinates the creation of certificates for cluster components and worker nodes?

Question 63mediummultiple choice

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An administrator wants to check the status of all Certificate Signing Requests (CSRs) in an OpenShift 4.14 cluster, specifically looking for pending node certificates. Which command should be used?

Question 64easymulti select

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An administrator is preparing to perform maintenance on worker nodes in an OpenShift 4.14 cluster. Which TWO commands or actions are part of the standard workflow to safely prepare a node for maintenance? (Choose TWO)

Question 65hardmulti select

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An administrator wants to customize worker node behavior in an OpenShift 4.14 cluster using the Machine Config Operator. Which THREE custom resources are natively provided and managed by the MCO for node customization? (Choose THREE)

Question 66mediummulti select

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An administrator is troubleshooting an Operator installation issue in OpenShift 4.14. Which TWO resources or logs should the administrator examine to diagnose OLM operator subscription and CSV issues? (Choose TWO)

Question 67easymulti select

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Which TWO commands can an administrator use to check the overall status or health of core OpenShift 4.14 cluster operators? (Choose TWO)

Question 68mediummulti select

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An administrator needs to troubleshoot an upgrade failure in OpenShift 4.14. Which TWO actions or diagnostic steps should the administrator take? (Choose TWO)

Question 69hardmulti select

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An administrator is configuring automated node remediation and scaling in OpenShift 4.14. Which THREE objects or custom resources are involved in machine management, autoscaling, and health checking? (Choose THREE)

Question 70mediummulti select

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An administrator wants to verify node configuration application status. Which TWO indicators show that a MachineConfigPool has successfully finished applying a new MachineConfig? (Choose TWO)

Question 71easymulti select

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Which TWO actions can an administrator perform using the 'oc adm' command set related to cluster management? (Choose TWO)

Question 72easymulti select

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Which TWO namespaces are standard system namespaces in OpenShift 4.14 that contain core cluster operators and platform components? (Choose TWO)

Question 73mediummulti select

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An administrator needs to identify worker nodes that require attention during an upgrade or maintenance. Which TWO conditions or states on a node object indicate potential issues or special maintenance states? (Choose TWO)

Question 74easymulti select

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Which TWO methods can administrators use to access the OpenShift 4.14 web console or CLI for cluster management? (Choose TWO)

Question 75mediummulti select

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An administrator wants to modify the default kubelet parameters (such as maximum pods per core or eviction hard thresholds) across worker nodes. Which TWO steps or resources are involved in this process? (Choose TWO)

Question 76hardmulti select

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An administrator is planning an OpenShift 4.14 cluster upgrade and wants to ensure that specific safety checks and conditions are met before proceeding. Which THREE conditions must be true for an upgrade to proceed smoothly? (Choose THREE)

Question 77mediummulti select

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An administrator wants to configure automated remediation for worker nodes that become unresponsive or experience hardware failure. Which TWO configurations or resources are required for a MachineHealthCheck to function properly? (Choose TWO)

Question 78mediummulti select

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An administrator wants to prevent automatic updates for an Operator installed via OLM while still allowing manual installation of new versions when desired. Which TWO actions or configurations should be performed? (Choose TWO)

Question 79easymulti select

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Which TWO commands or tools can an administrator use to inspect cluster logs or events when troubleshooting node or pod issues? (Choose TWO)

Question 80hardmulti select

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An administrator is troubleshooting a custom MachineConfig that failed to apply across a worker MachineConfigPool. Which THREE diagnostic steps or resources should the administrator check? (Choose THREE)

Question 81hardmulti select

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An administrator is managing cluster machine configurations and needs to understand how Ignition configuration files are processed. Which THREE statements are correct regarding Ignition and the Machine Config Operator in OpenShift 4.14? (Choose THREE)

Question 82mediummulti select

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An administrator wants to check the status of Machine API provisioning and verify that all machines are in a running state. Which TWO commands or resource inspections should the administrator perform? (Choose TWO)

Question 83hardmulti select

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An administrator is managing operator subscriptions and wants to ensure that an operator is automatically updated when new versions are released in the channel. Which THREE conditions or configuration settings must be satisfied? (Choose THREE)

Question 84easymulti select

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Which TWO files or directories are commonly configured or injected via MachineConfig objects for node customization? (Choose TWO)

Question 85easymulti select

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Which TWO tasks are typically performed by an OpenShift cluster administrator when managing worker node lifecycles? (Choose TWO)

Question 86mediummulti select

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An administrator is investigating why cluster operator upgrades are failing. Which TWO locations or commands provide detailed diagnostic information about cluster operators? (Choose TWO)

Question 87hardmulti select

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An administrator needs to configure secure access to a private registry for both node image pulls and OLM operator deployments. Which THREE actions or resources are required across the cluster? (Choose THREE)

Question 88mediummultiple choice

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An administrator is preparing to upgrade an OpenShift Container Platform 4.14 cluster from version 4.13.12 to 4.14.6. Before starting the upgrade, the administrator wants to ensure that all cluster Operators are healthy and that no prerequisites are blocking the upgrade. Which command should the administrator run to view the current upgrade status and any available updates?

Question 89hardmulti select

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An administrator is troubleshooting an OpenShift Container Platform 4.14 cluster that is failing to upgrade. The Cluster Version Operator (CVO) reports that the upgrade is blocked due to an unhealthy ClusterOperator. Which TWO commands should the administrator use to identify the specific ClusterOperator and its error condition? (Choose two.)

Question 90mediummultiple choice

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An administrator is managing an OpenShift Container Platform 4.14 cluster on AWS. The administrator wants to configure the cluster so that when a worker node is terminated due to a spot instance interruption, the MachineSet automatically replaces it. Which MachineSet configuration parameter should the administrator verify to ensure that new Machines are created to replace terminated ones?