What does a switch use to locate and load the IOS image?

A switch uses a specific boot sequence to locate and load the iOS (Internetwork Operating System) image. Initially, it checks the designated boot variables in the configuration, which specify the location of the iOS image, typically stored in flash memory or a TFTP server. If no valid image is found, the switch may fallback to a default location or enter ROMMON mode for recovery options. The switch then loads the iOS image into RAM to execute its functions.