This is Network+.

Reddit:

Practice Subnetting (I know. We all hate it.)

https://subnetipv4.com/

Port Practice:

https://www.purposegames.com/game/network-plus-ports-and-protocols

professor-messer-comptia-n10-008-network-plus-course-notes-v104.pdf

https://www.examcompass.com/comptia-network-plus-n10-008-exam-osi-model-quiz (the rest of quizzes are on bottom of page)