You are preparing to create a point to point WAN by connecting a Cisco router with a Juniper router by way of their serial links. Which one of the following commands would you use?()
A、TK1(config-if)# encapsulation hdlc ansi
B、TK1(config-if)# encapsulation ppp
C、TK1(config-if)# encapsulation LAPD
D、TK1(config-if)# encapsulation frame-relay ietf
E、TK1(config)#encapsulation ppp