  We study the Vaidya black hole surrounded by the exotic quintessence-like,
phantom-like and cosmological constant-like fields by means of entropic
considerations. Explicitly, we show that for this thermodynamical system, the
requirement for the identification of D-bound and Bekenstein entropy bound can
be considered as a thermodynamical criterion by which one can rule out the
quintessence-like and phantom-like fields, and prefer the cosmological constant
as a vi{\th}able cosmological field.
