Driving Theory 4 All has a Crown Copyright Licence with the DVSA (the people who set the theory tests). This means that every PCV practice question we show is included within the most up-to-date official DVSA practice question bank. The DVSA book contains the same question bank that is available via Driving Theory 4 All. These questions are the closest you will get to the real PCV theory test because the DVSA does not publish the real test questions.
The questions you saw on Driving Theory 4 All may not exactly match the questions in the real PCV test but they will closely resemble them.
I hope this helps to explain this but if we can be of any help, or you have any questions, please let us know.