In the context of Cisco Configuration Professional, to oediscover a router means to establish a session to the router using either secure or nonsecure means, do which of the following, and populate a screen with the information obtained?

A.
read the configuration present in the router

B.
read the IOS version in the router

C.
read the interface(s) information in the router

D.
read the CPU information in the router

E.
check if the router is UP or Down