Exam questions and educational materials are developed by two separate groups of people. These two groups are not permitted to collaborate, so it is unlikely you will see the exact same question/answer both places.
It is also helpful to know how exam development works. There is a concept of a "good question". Good questions are ones that tend to be answered correctly by those who pass an exam and incorrectly by those who fail. ISC2 strives to only have good questions on the exams.
New questions are added to the exam as unscored questions -- that is, they are worth zero points. Your score will not change (up or down) regardless of what answer you chose. After the new question has proven itself good, it enters the question bank as a scored question. If bad, it will either be sent back for rework or it will be discarded. Even after a question has been added to the bank, the question itself continues to be graded and will be pulled if it somehow starts to become bad.
Since many people have taken the test before you, the questions have all been tested for "goodness" many times. You are extremely unlikely to encounter a bad question. If you do, odds are that it is one of the new ("unscored") questions, so no need to worry.
My one piece of advise here is to strive to do better than the minimum. If you truly know your stuff and have prepared yourself well, you should be clearing the bar by enough that a bad question or two does not matter.
