According to the examination syllabus, systematically study and master the knowledge points of each chapter. After reading the information security engineer's tutorial, if you have any knowledge points you don't understand, you can learn and refer to other books (information security engineer's tutorial and information security engineer's guide to the whole exam) appropriately, so as to firmly grasp them.

At the beginning of learning, I suggest not to do the questions directly, but at least read the tutorial once. In the case that it is difficult to insist on reading textbooks alone, you can learn knowledge points in advance by watching videos. Review the knowledge points learned before in a planned way. In addition to learning new knowledge points every week, you can also set aside a day or two to review what you have learned before and fill in the gaps by doing problems.

It is best to make a study plan according to your own situation before reviewing, so that the review will be more rhythmic.