What courses should be included as "Course Highlight" in Resume for Master's application?
I am in physics, not computer science, and things may vary by field. But in my experience, it's very unusual to see "course[work] highlights" in an undergraduate resume, unless you have taken courses that are (a) relevant to your application, and (b) not the typical required courses that every applicant has taken. In particular, this section is not about grades. If your grades are excellent, you should list your GPA (or "GPA in major") in the same section where you list your school, degree type, etc.