MMI and DMI were pretty much the same questions, I used the same examples but the DMI is more highlighting how you FELT in those situations.
DMI is very similar to the MMI but more based around you as a person.
Learn about the company, what initiatives they have coming up/ done recently, how they plan to expand etc the usual company research you would do with any job interview.
Otherwise have 8-10 examples ready for questions such as 'Tell us about a time where you faced a difficult customer, Tell us about a time where you had to keep to strict timings, you had to go above and beyond, a situation where it was important to not make a mistake etc...the actual questions are throughout the forum just make sure you use the S.T.A.R system. Situation, Task, Action, Result.
PREP IS KEY.
PREP IS KEY.
Good luck!