Which action is required before replacing an X Fabric fiber-optic cable between MSEB and
Switch-to-Node ports?

A.
Verify that internal Y fabric for all other nodes are fully operational.

B.
Verify that external Y fabric for all other nodes are fully operational.

C.
Verify that both internal and external Y fabric for all other nodes are fully operational.

D.
Verify that both external X and Y fabric for all other nodes are fully operational.