Which VPN management feature would be considered to ensure that the network had the least disruption of service when making topology changes?（）

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.

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

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