Which two methods can be used to upgrade clustered Data ONTAP 8.2 or later? (Choose two)

USB upgrades are not a supported upgrade mechanism for clustered ONTAP - software images are delivered via HTTP, HTTPS, or the cluster image package infrastructure.

Split upgrades is not a defined upgrade method in clustered Data ONTAP - only rolling and batch are the supported non-disruptive upgrade strategies.

Skip generation upgrades are not permitted in ONTAP - a supported sequential upgrade path must be followed and major version generations cannot be skipped.

Rolling upgrades update one node at a time by migrating LIFs and workloads to HA partners before rebooting each node, keeping the cluster fully operational throughout the process. This method is the standard non-disruptive upgrade approach for all cluster sizes.

Batch upgrades group nodes into batches and upgrade each batch together, reducing total upgrade duration compared to purely sequential rolling upgrades while still maintaining availability via HA failover within each batch.