Hello Urvish Patel
I hope you are doing good . With reference to your query , in my opinion for computer networking you must follow the roadmap of BABBAR youtube channel ,it is very informative and easy to learn. Following are the names of some sites:-
1. Udemy
2. Coursera
3.Futurelearn
4. SkillShare
5.Lynda
Hope you found this answer helpful. Good luck for your future
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