Which of the following is true concerning best design practices at the switched Access layer of the traditional layer 2 Enterprise Campus Network?

A.
Cisco NSF with SSO and redundant supervisors has the most impact on the campus in the Access layer

B.
Provide host-level redundancy by connecting each end device to 2 separate Access switches

C.
Offer default gateway redundancy by using dual connections from Access switches to redundant Distribution layer switches using a FHRP

D.
Include a link between two Access switches to support summarization of routing information from the Access to the Distribution layer