Humans as we are, it is inevitable to commit mistakes. However, if you are someone taking the IELTS examination with a high overall band score to hit, there is entirely no room for mistakes. The IELTS test can pose a huge challenge when one comes unprepared for the examination. Look at it as a battle. Soldiers do not go to battle without any protective armor and any skill for war. In the IELTS, you have to take it with the knowledge on its different subtests and skills for each.