QCM avec cases à cocher

» Cisco » Examen Cisco CCNA V3.1 » Module 4 » Final » Question 28/39

28.A system administrator is troubleshooting a connectivity issue between two routers in a new installation. The administrator enters the debug ppp authentication command on the WHSE router. The graphic shows a part of the output received. From this output, what is the most likely cause of this connectivity issue?

There is not a route to the remote router.
The ISDN circuit on the remote router has failed.
The username/password was not properly configured on the WHSE router.
The remote router has a different authentication protocol configured.