Hi,

It depends on the role and practice. In general, you should know:

• Latest trends in your field
• Key analytics instruments and examples of how you applied these tool in your past
• Applicability to different industries

I think the best way to prepare is to find the relevant technical articles and knowledge nuggets on McKinsey official site - they have plenty of them.

McKinsey is hiring more and more narrow industry specialists. If that is the case - you should perfectly know your area of expertise.

You may also be hired for some data-science positions. In this case make sure that you know how to work with databases (sql, python, etc)

Good luck!

Unfortunately do not have cases. As per interview content, an important distinction:

• experienced hire: if you have two rounds, the first round is same as all generalist candidates, second round is with partners from your practice area and therefore cases will be industry specific. If you have only final round, most likely all cases are in your field of expertise. However unlikely you will get technical questions (unless you are very junior in your tenure) and more likely you will be tested on general industry knowledge, business sense in it
• specialist/technical resource: these will be mostly technical.

Hope it helps,

Andrea