F5 Certified Practice Exams
The practice exams will NOT give correct answers to all of the questions, as that would diminished its ability to predict your performance on the real exam. It also won't help you on the real exam, because none of the practice exam questions are on the real exam.
The link mentioned above works for me, although LinkedIn has been making a lot of changes which might have caused issues. That link explains this, but to reiterate:
F5 practice exams are not a tool for learning, teaching, training, etc. They are an accurate way to assess your readiness for the actual exam. The practice exams are psychometricly equivalent to the real exams and, therefore, highly predictive of your performance: if you pass the practice exam, you are likely to pass the real one. This is only possible if we treat it exactly like a production exam and do not expose the questions/answers.
Beyond that, the practice exam does give you valuable, section-level feedback on your performance to help identify weak areas as well as a simulated exam experience to help candidates prepare psychologically for the exam.