The answer to your question is almost no impact. First of all, the key is whether the school you want to take the exam is in charge. I don't think I've heard of any school in charge of this. Even a high-standard school like Britain only requires you to reach a grade point. It doesn't matter even if you fail, because when our school gives you the report card, it will block the door for you to fail.
You find a teacher to bend the rules and see if you can use some unconventional means. After the start of next semester, there will be another chance to change your grades. It's only a small effort for him to persuade the teacher to help you correct it.
The GPA mentioned on the first floor is the average grade point average, which is also covered by the second interview of our school, rather than not taking the exam. You should ask for help with the class. If you are not a freshman, you should know it well.
The second floor is wrong. It's not that you can't pass all courses without a diploma, but that you can't pass compulsory courses without a diploma. As long as you have enough credits, you can have a final exam when you graduate, which means you can pass it.