It's really common to have the "marke entry" case divided into 2 stages. The first part is usually guided by the interviewer: you could be asked to analyse a particular market or to compare some different markets. After doing the analysis, if the landascape seems positive for an entrance, you will always be asked also to suggest an entry strategy (phase 2).
It's really important to be well structured when you do market analysis.
If you have doubts regarding framework or presentation of your solution, feel free to contact me.