Hello staff,

Today, I made a dummy for the Certification and I fled the correct boot sequence and default locations of where they are loaded each of their items.

Here is the order of the boot that is loaded and where:

1. POST (Power-on self-test) - check the hardware.
2. Bootstrap (something like the BIOS of the router) - Loaded from ROM.
3. IOS (OS of the device) - Born from the FLASH. The device seeks to IOS in the following sequence: Flash, tftp and ROM (mini-ios).
4. Config (file startup-config) - Born from the NVRAM, if not found in a search TFTP server. If not found in either, enter into setup mode.

Please note that the locations of where they are loaded each of the above can be changed. Typically, the Bootstrap and the IOS will be loaded from their seats standard, and the place settings sometimes modified.

Success to us all!

Maurício.

References:

- Odom, W. - “Guide for Certification of Cisco CCNA Exam 3rd Edition”, High Books/2003.