Vector boson + jets measurements at CMS

The study of the production of vector bosons in association with jets is of importance for the understanding of QCD, and for the modelling of backgrounds in searches for yet undiscovered particles in similar final states. These proceedings describe the most recent results obtained with the CMS detector for the studies of vector bosons produced in association with both light and heavy-flavor quark jets. Focus is put on the discrepancies in comparisons of data with theoretical predictions