That's a useful summary that Robert has linked to but it's worth pointing out that one of the tables showing different cable categories and construction is only showing 'common' /'typical' construction and that this list is not exhaustive in construction for the different categories.

It is quite easy to glance at this table and think that cat5 is only UTP and that you need cat6a for shielding and/or screening but this is not the case. For most categories of cable, screening and shielding is a separate specification to the category and for instance, cat5e STP cable is commonly available if you specify it.

Another unfortunate issue is that some cable naming is often used quite generically so for instance one persons STP will be screened (common screen for whole cable) where as to another STP may mean shielded pairs.

Meridian owner since 1992
Prime & PSU, Focal Elear headphones, Roon (ROCK 8Gi5 NUC), Explorer 1 & 2, F80. 200/203, various Sonos (via Roon).