Data Travel through Internet
Data Travel data travel through the fiber optic cables. data travel at very high speed. for example one is visiting google.com form Japan. the request means the data goes to united states and comes back with response. this happens in milliseconds, means data travel is so fast. Data travel starts from our home. because we are client. we send request to server. when we send request to server using mobile. then that data is converted into Electromagnetic waves. then tower send data to mobile switching center. mobile switching center sends data to the tier 3 isp , here tier 3 isp works within cities or districts. means We can say it is local isp. this isp check the address of request is matches to its network or not if not then it sends to upper level isp. Tier 2 isp is at country level it work within country example Jio, idea etc. tier 2 isp network covers entire state. here the request received from tier 3. tier 2 isp check the address of that req...