How are ports scaled on vSphere Standard Switches (vSS)?

How are ports scaled on vSphere Standard Switches (vSS)?
A . Ports on a vSS can be dynamically scaled up and down.
B . Ports on a vSS can only be statically scaled up or down.
C . Ports on a vSS can only be dynamically scaled down.
D . Ports on a vSS can only be dynamically scaled up.

View Answer

Answer: A