A remote office has a T1 WAN link to headquarters and a T1 Internet connection. The client
requests WAN redundancy to headquarters with similar bandwidth. What two connection types
satisfy this requirement? (Choose two.)

A.
Secondary T1 WAN circuit

B.
ISDN BRI

C.
IPSec Tunnel over the Internet

D.
DWDM l

E.
POTS Line T1 WAN