McKinsey Digital cases

Hi,

There will be a mix of regular and IT cases. For the regular cases on preplounge will be most helpful. For the IT cases, I recommend reading the articles of the consulting companies about these topics on their websites (Hundreds of them if you google by key words "agile", "Digital", at McKinsey, BCG or Accenture)

Feel free to reach out if you need help with digital case prep.

I have not seen any digital cases online. But here is a list of potential topics you need to know. It is a full list and looks scary but they test a lot of these concepts depending on the particular role:

• Basics (computational thinking, sorting, data structures) - they never ask directly but understanding will help with the other topics)
• Database design (Centralized vs decentralized, sharding, factors influencing the number of replicas - the volume of data, future scale, growth, data structure, desired speed, etc)
• Technology stacks (front, back,api, database, etc)
• Cloud (cloud vs own servers pro and cons, uptime % SLAs, load balancing, etc)
• Server storage - major cost buckets - remember about additional replicas and cooling electricity costs
• Security (encryption basics, public keys, password change policy, cloud security and encryption on your computer)
• Agile and development (Agile principles, Environments: Developing, testing, production, Native apps / web apps / hybrid apps, etc)
• M&A and IT (Will it be one system or two systems? Is it "Adopt and go" approach or we take the best of both systems and create a new one? Integrate now, innovate later? Or Innovate now, when you have time?)
• IT strategy and Digital transformation (Similar to M&A)
• IoT (Mainly the use of IoT in operations - Process steps completion, measuring temperature, maintenance measurements, other measurements, predicative algorithms, etc)

Good luck!

Hi Eduardo,

I am not sure whether you can find digital cases online but I am happy to have mock digital case interview together. Please let me know if you are interested.

Cheers

Serhat

Hi Eddie,

what I have heard from people who applied to McKinsey Digital is that they were basically given the standard cases but with a focus on digital technology. So by practising the standard cases, you should be fine. The important aspect is that you have insight knowledge about current digital trends, but I assume you have otherwise you wouldn't have applied to this practice.

Good luck!

Cheers,

Daniel