The purpose of Knowledge Center personalized content is to allow you to complete an objective assessment of your skills in the subject matter and then take a subject that contains only the content upon which you need to focus. When assessments are created, the subject author includes questions based on subject content. When you complete an assessment, the Assessment Summary page displays a list of sections upon which assessment questions were based and your score on the questions for each section. The Knowledge Center does not create a new subject, but rather filters the full subject to show only the necessary sections.
You can customize the Personalized Content by selecting or deselecting sections to include in the subject from the Assessment Summary page.