Hello. Starting with the course title, it said "Pass the Practical Exam in Just 1 Week," so I thought I should start studying 2 weeks before the practical exam and made the purchase. In my case, I didn't buy any books and only watched this course and one YouTube instructor's problem-solving videos for the Information Processing Engineer exam, and I passed. For non-majors, honestly, passing in just 1 week seems difficult. I think I was lucky to pass both the written and practical exams on my first try, and I think I passed because the 2nd round practical exam was an easier session - if it had been more challenging, I probably would have failed. In my case, I do have frontend developer experience and knew the basic syntax of C, Java, and Python (though honestly, you could say I barely knew them...). In the exam, I honestly almost gave up on the coding problems and only got about 2-3 questions right. By my standards, the problems came out quite challenging, so I remember not being able to solve about 80% of them. And there's a PDF summary file - I think I was able to pass by looking at it whenever I had time. (I think the PDF file is the key) For the rest, I studied mainly calculation methods like subnet masks, SQL, and process scheduling through YouTube. (I think you need to know at least this much to pass) It's a bit lengthy, but I hope it helps even a little, so I wrote it down.