olemus
võrguga andmevahetusühenduse saamise võime
= the ability to establish a data exchange connection with the network

ülevaateid
https://www.techopedia.com/definition/12937/network-connectivity

https://www.powershow.com/view/1afb42-MzljN/Chapter_8_Network_Connectivity_powerpoint_ppt_presentation

https://en.wikipedia.org/wiki/Internet_access

https://www.diva-portal.org/smash/get/diva2:461998/FULLTEXT01.pdf