5-string banjo standard tuning is (gDGBD)

[kamalmostafa]

Fretboarder's "Standard tuning" selection for 5-string banjo is (gCGBD) but the modern standard tuning is actually generally accepted to be Open-G (gDGBD):

https://www.deeringbanjos.com/pages/how-to-tune-a-banjo https://en.wikipedia.org/wiki/Banjo#Five-string_banjo