Hi there!
The format of the interview depends from firm to firm and role to role. On top of that, they're also fond of changing these formats once in a while.
So in short, I wouldn't use an answer from here to guide your thinking.
Instead, reach out to HR and ask them what will be the format of the interview, whether you'll be presented with cases only from within due diligence, whether there is a technical aspect of the interview as well.
In general, unless you are applying for an expert or senior role, you're not tested for knowledge but it's best to know in advance so you can adjust your prep accordingly.
Best,
Cristian
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