A. scale to a large size B. increase router peering C. provide a flexible topology with no spanning tree loops D. control broadcasts in the backbone
A. IPSec in tunnel mode B. IPSec in transport mode C. GRE with IPSec in transport mode D. GRE with IPSec in tunnel mode
A. single layer of firewalling B. multiple layers of firewalling C. firewall connections in either an active or standby state D. an architecture in which all traffic between firewalls goes through application-specific servers