The Cambridge TKT or the "Teaching Knowledge Test" is a multiple choice, paper based test with several modules. An important feature is that there is no "pass" or "fail". Your score will be reported along a band and be recorded on your certificate.
I'm not so big on such things - I don't think there is a lot of transfer between "knowing about teaching' and "be a better teacher". But that is a whole other subject and I do recognize teachers have to jump through these hurdles in order to get better opportunities to teach and grow as a teacher.
So here are some resources to help you study for this qualification and high stakes test.
1. Help support EFL Classroom by studying with our Premium TKT Quizlet Sets. They are perfect for preparation and cover all topics. We'll help get you across the finish line! Quizlet has amazing study functionality and tools to help you remember and reuse the vocabulary heavy part of the TKT.
3. Download this preparation coursebook for all kinds of exercises to help.