Hi there,

hard to answer without more context on your target firms / roles and your background 

1) if you are targeting data scientist roles at mbb / t2 (e g bcg x etc …) I would encourage you to reach out to people in those roles through linkedin

- pay strong attention how you word your request to not appear transactional but genuinely interested 

- leverage common background, commonalities to increase response rate

- ask to hear about their experience at the firm and then politely ask how the technical part of interview works

this can give you real intelligence on the specifics of what is asks

2) on top of 1) leverage technical interview forums in internet (e g fishbowl dedicated bowls etc… ) - just Google technical data scientist interview questions and go from there. also ask during 1) what preparation resource they advise you to use 

Hi there!

It might be worth then either hiring an expert or finding somebody through your network who is already a data scientist to probe you with more complex questions. 

Best,
Cristian

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Hi there,

If you have found an online resource that does not feel tough enough….then go find another one that is tough enough!