Which two options are valid WAN connectivity methods? (Choose two.)

A.
PPP

B.
WAP

C.
DSL

D.
L2TPv3

E.
Ethernet

Explanation:
The Point-to-Point Protocol (PPP) provides a standard method for transporting multi-protocol
datagrams over point-to-point links. PPP was originally emerged as an encapsulation
protocol for transporting IP traffic between two peers. It is a data link layer protocol used for
WAN connections.
DSL is also considered a WAN connection, as it can be used to connect networks, typically
when used with VPN technology.