Web hosting is a service, where you can host your website data on the server for public, its a process to buying the online space from the any data center, then put your website data on the allocated space to access it from the internet.

Domain Name System (DNS) is the phone book of websites in the internet world.
Translate the human readable domain name to machine readable IP address. more

There are many ways to remove the post date of all word press, have alot of wordpress plugins, but i prefer to add this code in CSS section, post date will disappear in all the posts, more