no, comp B and comp A is a mix up of your exam.. eg. when you have a test or assessment or what ever you want to call it, it must contain a mix of comp A and a mix of comp B... get it.
well not at our skool the 20 or so percent required by the Board Of studies is conducted in 1 test at our school. They literally split up the Component A and Component B 'syllabus outcomes' if u would call it that into 1 component B assesment and the rest Component A. I know in any component A test they are still testing the concepts etc... but our stuffed school does this