CertNote is a set of study notes for people preparing for AWS certifications and the Linux Master exams. The exam scope is divided into weeks and days, so you read one note a day and work through practice questions on the spot.
Every note is free to read without signing in. Full-length mock exams, review of missed questions, study records and AI explanations of wrong answers are available after a free sign-up.
The criteria we use to set the scope, how notes and questions are produced, and how review and error reports are handled are described in How we make this. Errors fixed through reports and review are published in the changelog.
CertNote is operated by 주간랩스 (Jugan Labs). Please send questions and error reports through the contact page.
CertNote is an independent study resource and is not affiliated with, or endorsed by, exam administrators such as Amazon Web Services or the Korea Association for ICT Promotion (KAIT). We do not publish recalled or leaked exam questions; every question included is written in-house.
Exam scope and registration details are changed by the administering organizations from time to time. Please re-check figures such as exam fees, number of questions and passing criteria against the official announcement before you register. If you find something wrong in a note, let us know at wkdrndydtlr@gmail.com and we will fix it.