Is Hermione Granger in Harry Potter a know it all?

Hermione Granger started Hogwarts having read a countless number of books on the Wizarding world in an attempt to discover as much information as she could. Hermione is very smart and studies hard because she believes this will result in her peers accepting her. She knows no other way to be accepted and hopes that being a know-it-all will make her some friends. As time goes by she learns that this is not the way to make friend and although she still studies hard to achieve the best possible grades, she also knows that there are more important things than studying and that bragging about how many books she has read and how much she knows isn't going to go down well with people.