On Windows systems you can run the following command to view the current DNS server(s) from a command prompt:
ipconfig /all
And look for the “DNS Servers . . .” section.
POW·ER·CRAM NOUN, \ˈPAU̇(-Ə)R\ˈKRAM\ – CONSISE, USEFUL INFORMATION ABOUT COMPUTERS, NETWORKS AND CLOUD.