_________ uses a clocking circuit to control the timing of communications between two WAN devices suchas routers.
A.
Static Route
B.
Dynamic Route
C.
PPTP Route
D.
Point To Point
Explanation:
Section Reference: Defining X.25
Digital lines have speeds of 64K or greater. It isalso synchronous, which means that a clocking circuit controls
the timing of communications between the different routers.