Which two features are implemented using Brocade IronStack technology? (Choose two.)

A.
You can use any port on the switches to create your IronStack.

B.
You can mix devices running different software images in the same stack group.

C.
You can manage multiple physical switches in an IronStack as a single logical switch.

D.
You can perform a hitless stack failover without impacting Layer 2 and Layer 3 unicast traffic.