On three different occasions an administrator configured a router, and after testing the
configuration saved it to NVRAM by issuing the copy running-config startup-config command. After
each successful save the administrator issued the reload command. Each time when the router
restarted, the router appeared to have the default blank configuration. What could cause such
results?

A.
The configuration register setting is incorrect.

B.
The NVRAM is corrupted.

C.
The upgraded configuration is not compatible with the hardware platform.

D.
The boot system commands were left out of the configuration.

E.
The upgraded IOS just loaded is not compatible with the hardware.

Explanation:
When you enter the command, “copy running-config startup-config” you save your current settings
to NVRAM. The problem described in this question is that it appears the router is set to bypass the
NVRAM, making it come up in the initial configuration dialog. The most likely cause of a router
with the configuration register settings set incorrectly is that the router recently went through the
password recovery procedure.