Most IELTS Writing Tasks 2 essay questions ask you to discuss an opinion or a topic. In a lot of cases the question will give you a context to help you answer the question.
An example of a standard Agree or Disagree question is shown below.
Some people think that scientists experimenting with animals in a laboratory is the only way we can guarantee new products will be safe for human use. To what extent do you agree or disagree with this opinion?