What is the PRIMARY advantage of an HA pair in a NetApp storage environment?

A company is performing a hardware refresh on a 2-node switched NetApp ONTAP cluster. They need to replace two older nodes that support only ONTAP releases earlier than ONTAP 9.8 software with two NetApp AFF systems that require ONTAP 9.12.1 or later releases. The cluster is currently running ONTAP 9.7. Which steps complete the hardware refresh with all nodes running on ONTAP 9.12.1 software without disruption?

You have a NetApp ONTAP cluster that is serving both SMB over 10Gbe and FC data. An application owner has started to complain about poor performance and asks you to research the issue. When looking through EMS messages, you see the following output:

Which defective component triggers the EMS message?

A storage administrator is troubleshooting a 4-node cluster, where one node is reporting "cluster port is down" alerts. The node has recently been recabled to new cluster switches. The cluster ping-cluster command shows communication failures between the affected node and its partners over the cluster network. All physical cables have been verified as properly seated and undamaged. Which configuration is causing this problem?

You have a NetApp ONTAP cluster for which you want to reuse a disk shelf from a different cluster. You have removed the disk shelf from the first cluster, moved the shelf, and correctly cabled the shelf to the new cluster. After connecting the new disk shelf, you attempt to create a new aggregate. You receive a message stating that there are not enough disks available. You see the following results:

What action do you take to resolve this issue?