The alphanumeric string appears to be a specific firmware filename for a Cisco Catalyst 2950 Series Switch , typically associated with its IOS (Internetwork Operating System) software.

Cisco filenames follow a specific naming convention that tells you exactly what the file is:

Instead of searching for the garbled string, use :

.bin (Standard Cisco IOS binary image used for CLI-only management).

This is the last official version before the series reached End-of-Life (EOL). Cisco Community How to Install via TFTP Since this switch is EOL, official downloads from Cisco Support