Which of the following are ware Snapshot provides a “point-in-time” view of a source LUN? (Choose two)

A.
By limiting the number of Snapshots to eight that can be assigned to a LUN at the same time
B.
By using pointers to track whether the data resides on the source LUN or in the Snapshot Cache
C.
By writing the new data to the Snapshot Cache the first time it changes
D.
By copying the original data to the snapshot Cache the first time it changes