What is the use of NPV in Cisco Unified Computing Systems？ （）    

A. manage SNMPv3 security access to switches
B. save and copy configuration files and software images
C. configure VLANs and Ethernet port channels
D. manage 2148T FEX， 2232PP FEX， and 2248TP FEX
E. configure FCoE

A. A single SAN port channel can have both Fibre Channel and virtual Fibre Channel interfaces. 
B. SAN port channels can include up to 16 interfaces.
C. SAN port channels distribute traffic across all links in the port channel when source ID and destination ID load balancing are used.
D. The links in SAN port channels can be connected to different sets of switches.
E. The On mode of operation means ports only operate as part of a SAN port channel or remain inactive.

A. The Nexus 5000 family of switches does not support vPC when running in either NPV or FCoE NPV mode.
B. The MDS 9100 family of switches is an excellent design choice as a Unified Fabric edge switch. 
C. The Nexus 7000 Series Switches can support the NPIV mode of operation， but cannot function as a complete Fibre Channel Forwarder.
D. The Nexus 7000 Series Switches cannot support advanced Cisco Fibre Channel features such as IVR.
E. The MDS family of Cisco Unified Fabric switches supports both the Fibre Channel Forwarder and Fibre Channel Bridge functions.