A、Utilizing Cisco NSF in Layer 2 environments can reduce outages to one to three seconds.

B、Utilizing SSO in Layer 3 environments can reduce outages to one to three seconds.

C、Distribution switches are single points of failure causing outages for the end devices.

D、Utilizing Cisco NSF and SSO in a Layer 2 environment can reduce outages to less than one second.

E、NSF and SSO with redundant supervisors have the most impact on outages at the access layer.