What is DNS Services and why does it use so much data?

How i am stop this dns service so that my data useless

DNS (Domain Name Service) is the Internet "address book" of web sites. Whenever you go to a site such as http://apple.com your browser must make calls to the DNS server specified in your Network Settings to translate "apple.com" into Apple's IP (Internet Protocol) address of 17.178.96.59. Any time you access any Internet resource (such as sending or receiving email, playing multi-player games, using a browser, Using any app that accesses data on the Internet such as news, weather, stocks, etc) one or more DNS lookups must be made. Many web sites have content from several different sites. Each site referenced on the page must also be looked up. Each query is small (~100 bytes), but they can add up.

Separate topic. When the phone is asleep you are not connected to WiFi, so if you have any apps that run in background and use data they will use cellular data rather than WiFi. Unless the phone is connected to power or you turn off cellular data.

Hi

Data services are off

Background refresh is turn off

Still data services are getting used

What is the sol

Okk I will try to solve this problem

Please help me, how am i doing to stop this problem too ?

Why is DNS take a lot of data what is it for

Same story I have here with my iPhone 5s, those who are in charge or someone with some tips help us cz this's very boring and expensive.

Woow that's great we hope to get a solution soon,

Thanks a lot.