You are the Cisco Network Designer in Cisco.com. Which of these are important whendetermining how many users a NAS can support？（）

单项选择题WhichVPNmanagementfeaturewouldbeconsideredtoensurethatthenetworkhadtheleastdisruptionofservicewhenmakingtopologychanges？（）

A. dynamic reconfiguration
B. path MTU discovery
C. auto setup
D. remote management

多项选择题WhichtwocharacteristicsaremosttypicalofaSAN？（）

A. NICs are used for network connectivity.
B. Servers request specific blocks of data.
C. Storage devices are directly connected to servers.
D. A fabric is used as the hardware for connecting servers to storage devices.
E. The TCO is higher because of the cost of director class storage switches.

单项选择题Whatishighavailability？（）

A. redundant infrastructure
B. clustering of computer systems
C. reduced MTBF
D. continuous operation of computing systems

单项选择题WhatisthepurposeofIGMPinamulticastimplementation？（）

A. it is not used in multicast
B. it determines the virtual address group for a multicast destination
C. it dynamically registers individual hosts in a multicast group on a specific LAN
D. it is used on WAN connections to determine the maximum bandwidth of a connection
E. it determines whether Bidirectional PIM or PIM sparse mode will be used for a multicast flow

单项选择题Whichcontentnetworkingdeviceallowsbandwidthconfigurationsettingssothatstreaming contentwillnotinterferewithothernetworktraffic？（）

A. IP/TV Control Server
B. Content Distribution Manager
C. Content Engine
D. IP/TV Broadcast Server