Which three Layer 2 encapsulation types would be used on a WAN rather than a LAN? (Choose three.)

A.
HDLC

B.
Ethernet

C.
Token Ring

D.
PPP

E.
FDDI

F.
Frame Relay

Explanation:
On each WAN link, data is encapsulated into frame before being transmitted over the WAN link. In order to implement the accurate protocol, it is required to configure the correct type of Iayer2 encapsulation. The selection of the protocol depends on the WAN technology and the communication devices being used.