HTML forms

Hi,

The course I am doing on HTML has a question asking:

Q: Name the three types of forms and describe their functions.

I have never heard of three different types of forms, only three different methods of submitting data

Code:

---


1) <form method=post
2) <form method=get
3) <a href="url?variable=value

---

is this correct?

What are these methods called?