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 request it matches to the its network or not if not it sends to the tier 1 isp.

Tier 1 isp is international level.the example of tier 1 isp is TATA TELECOMMUNICATION in INDIA. Its coverage area is about a country. the  address of the request is again checked and the which country  address is in the request if the address if us then the proper path is set that the request means data can reach to its destination.

In simple terms. take example that one entered google.com then first is goes to tier 3 isp then goes to the tier 1 isp and goes to the google data center is united states. becuase we are visiting google.com.

in which way data goes to the server in that way it comes back to the client.