Question groups in quizmaker

For example, i create 2 question groups of 50 each all are graded questions. Lets name them group A and group B.

Remember this is a standalone quiz file and have randomized the questions in groups, and i publish the file.

Now i see all the 100 questions in the output.

1. Will the questions gets randomized within the same group or different groups?

2.Can it happen that only a particular group appears first and then the next group will appear?

3. Do we have an option to choose the different groups to appear in the published file?

Thanks,

Sri