Which Three Characteristics of the Single Tier and the Dual

Multiple Choice

Which three characteristics of the Single Tier and the Dual Tier Headend Architectures for DMVPN designs are true? (Choose three.)

A) A Dual Tier Headend Architecture is required when using dual cloud topologies with spoke-to-spoke connectivity
B) In a Dual Tier Headend Architecture, the GRE tunnel endpoint and encryption endpoint functionalities are on different routers
C) A Single Tier Headend Architecture is required when using dual cloud topologies with spoke-to-spoke connectivity
D) In a Single Tier Headend Architecture, the GRE tunnel endpoint and encryption endpoint functionalities are on the same router
E) In a Single Tier Headend Architecture, there is a single headend router per DMVPN cloud topology
F) In a Dual Tier Headend Architecture, there are two different headend routers per DMVPN cloud for high availability purposes