don't understand question

Shanman

The administrator is unable to establish connectivity between two Cisco routers. Upon reviewing
the command output of both routers, what is the most likely cause of the problem?

RtrA# show running-confg

enable password cisco
!
hostname RtrA
username RtrB password cisco
!
interface serial 0/0
ip address 10.0.8.1 255.255.248.0
encapsulation ppp
ppp authentication chap





RtrB show running-config

enable password cisco1
!
hostname RtrB
username RtrA password cisco1
!
interface serial 0/0
ip address 10.0.15.2 .255.255.248.0
encapsulation ppp
ppp authentication chap


A. Username/password is incorrectly configured.
B. Router names are incorrectly configured.
C. Serialip addresses
D. Authentication needs to be changed to PAP for both routers.
Answer: A
Explanation:
When setting up local password database in CHAP, configure commands username username
password password in overall configuration mode to add note to local password database. Note
that the username here should be the router name on the opposite side. And the password should
be the same as that in the password database of CHAP authentication server. The above graphic
shows different password.


This question is throwing me for a loop. Can anybody shed some light on this for me?

gosh1976

seems pretty straight forward the username should be the hostname of the router on the other side of the ppp connection and the passwords should match on both sides.

passwords don't match:

username RtrB password cisco
username RtrA password cisco1