Mini IOS / RXBoot

[Pravin]

I'm a little confused with this Mini IOS RXBoot and would like someone to explain the following.

What exactly is it?

How does it work?

How does it differ from IOS in flash memory?

Many thanks,

Pravin.

[Pravin]

Could someone provide clarification please of my description in the brackets below- have I got the them right?

Page 256- "These are the main reasons you would change the Configuration Register":

"To force the system into the ROM monitor mode"
(this can be for password recovery?)

"To select a boot source and default boot filemane"
(the boot source is the Startup Config and can be loaded from NVRAM, TFTP?),

"To enable the Break function"
(this allows you to select ctrl and Break to interrupt reload to get into ROMMON?),

"To control broadcast addresses"
(how does this help?)

"To load the operating software from ROM"
(Load the IOS from ROM),

To enable booting from a TFTP Server"
(Get the IOS from TFTP and load Startup Config from NVRAM or get IOS from Flash and Startup Config from TFTP?)

Thanks.