Scenario: A Citrix Administrator is managing a NetScaler SDX running eight NetScaler instances. The administrator first needs to upgrade the firmware on the instances.
However, the administrator is concerned that it needs to be done all at once.
What upgrading flexibility does SDX provide in this scenario?
A . The NetScaler instance can be upgraded at the SDX management level, allowing all instances to be upgraded at once.
B . The NetScaler instances have to be upgraded at the same time.
C . The NetScaler instance can be upgraded on an individual basis, allowing all instances to run different firmware versions.
D . It is NOT possible to upgrade the NetScaler instances to different firmware versions.