1.) An IP adress is a unique string of numbers separated by periods that uses Interent Protocal to communicate over a network.
2.) A domain name is the part of a network address that identifies it as belonging to a particular domain. The domain name relates to the IP adress because they are both ways to refer to unique machines.
3.) HTML stands for Hypertext Markup Language.
4.) The default page of a website is called the index.
5.) The image HTML tag is img with the brackets around it.