Which EIGRP feature should a designer consider to limit the scope of EIGRP queries andminimize convergence time？（）

A. It is recommended to place the VPN termination device in line with the Enterprise Edge 1
B. Maintaining access rules， based on the source IP of the client， on an internal firewall drawnfrom a headend RADIUS server is the most secure deployment
C. VPN Headend routing using Reverse Route Injection （RRI） with distribution is recommended when the remote user community is small and dedicated DHCP scopes are in place
D. Clientless SSL VPNs provide more granular access control than SSL VPN clients （thin or thick），including at Layer 7

A. PortFast
B. UplinkFast
C. loop guard
D. root guard
E. BPDU guard
F. BackboneFast

A. Construct a hierarchical network design using EtherChannel between a server and two VDCsfrom the same physical switch
B. Utilize Cisco NSF with SSO to provide intrachassis SSO at Layers 2 to 4
C. Define the Data Center as an OSPF NSSA area， advertising a default route into the DC And summarizing the routes out of the NSSA to the Campus Core
D. Implement network services for the Data Center as a separate services layer usingactive/active model that is more predictable in failure conditions