When designing a WAN backup for voice and video applications, what three types of connections
should be used? (Choose three.)
A.
Private WAN
B.
internet
C.
ISDN
D.
MPLS
E.
dial-up
F.
ATM
G.
DSL
Explanation:
Critical thing here is voice/video backup for which we need at least 768 KB/s (CCDP)
Typical ISDN speeds range from 64 Kbps to 128 Kbps. If you need atleast 768KB/s for voice/video backup then the answer is ADG
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