After performing a password recovery operation on a router, the network field engineer copies the running configuration to the startup configuration and then reloads the router. The router boots successfully but immediately enters the setup mode. The engineer manually loads the startup configuration using the copy start run command and verifies that the configuration is correct and the passwords are reset. What can cause the router to enter setup mode rather than load the correct startup configuration file?
- The field engineer configured the incorrect passwords in the startup configuration file.
- The configuration register setting was not changed back to the correct value before the router was reloaded.
- The running configuration was not successfully saved to the startup configuration before the router was reloaded.
- During the password recovery process, the engineer should have copied the startup configuration to the running configuration before reloading the router.
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