An administrator previously changed the encapsulation on a synchronous serial line and saved the
configuration. Now the administrator wants to restore the encapsulation back to the default. What
action can the administrator do to return the interface back to its default encapsulation?
A.
Change the encapsulation to ARPA.
B.
Configure the interface for HDLC encapsulation.
C.
Reboot the router and allow it to reload the configuration.
D.
Issue the shutdown then no shutdown commands to reset the encapsulation on the interface.
E.
Remove the cable and plug it back in to allow the router to autonegotiate encapsulation
settings.
Explanation: