One of the characteristics of the CSMP L6 Diploma is that it sets out to test your proficiency rather than simply knowledge. Thus, it requires answers to be less descriptive and more analytical. In many cases in constructing answers, description sets the scene for the analysis to follow.
Specifically, the markers like to see students use critical analysis. Critical analysis doesn’t mean that you have to “criticise” the subject matter, but it is more about in-depth evaluation and examining the various arguments that relate to the matter under study.
In developing your skills in writing critical analysis, you may wish to refer to the following resources: