Deutsche Bank Interview Experience (2021-22 )

Round 1 (Online test): There is total three questions

• Strictly increasing order: Is it possible to make array in strictly increasing order or not?
• Given an array consisting of N non-negative integers. You have to find sum of consecutive numbers that was greater than or equal to the K.
• Given a string(26<=N) you have to find shortest substring in which we can find “ABCDEFGHIJKLMNOPQRSTUVWXYZ”

  Ex. Str = “ABCDEFGHIDIVJKLMNOPQRSTUVWXYZOP”   
  ans = 29 because in this only “OP” is extra.

Round 2 (Tech-1 45 min):

• Tell me about yourself.
• I did internship so he wants from me to share my internship experience, technologies that was used during my internship. (Approx. 20 to 25 min).
• I used protocols in my intern so he asked me about some protocols.
• He asked me in which data Structure I m comfortable so I told him “LINKED LIST”, so he asked me to how I create linked list, how to insert, delete, traverse etc. He didn’t ask me in depth.
• After this he asked me about my project (I have only one major project and 2nd is normal like minor) that how much you take to complete, what are the tasks and how you completed them by any one help, or google or yourself. (Approx. 5-7 min)
• Again, he come to networking and asked me about some application protocols, that was not included in my internship.

In this round they asked me about CN but that was not compulsory they asked me because I did an internship where I used networking protocols.

Round 3 (Tech-2 90 min):

• Tell me about yourself.
• This round start with DSA, they give me 4-5 questions (2-3 situation are given with each question) (45-50 min)
  • Each letter denote a number [a-1, b-2,……,z=26] so you have k and N, where k is sum if number and N is length of string that you need to create, ex: –    K=42, N=5 then string will be aaamz(1+1+1+13+26), You need to find lexicological smaller string
  • Convert number in single digit by adding digits of number until get single digit
  • Check string 2 is rotation of string 1 or not.
  • Rotten orange problem (you can find this either on GFG or LeetCode)
• Difference between CPP and JAVA.
• Difference between overloading and overriding
• String Buffer and string Builder
• He asked me about some other concepts from java (Here he wants to go in depth but I told him that I just familiar with java OOPs concept or core part).
• How HashMap works
• Are pointers are used in java?
• Now he comes to OS, what is deadlock, how to remove it (Here I forget the name of algo so he helps me to remind it) how to prevent deadlock.
• Now he comes to DBMS, what is Distributed System
• What type of architecture you used in your project?
• He asked me to write query to find a record who has 2nd highest salary (this question is trending now a days, so please learn about this there are three ways)
• This question is for one of my internship technology.
• In last he asked me a puzzle where suppose I have 10 balls of same weight except one ball, now how I found that ball that is lighter in weight than other 9 balls (here you can use binary search approach)
• Any question that you want to ask from us?

Round – 4 (Pro-Fit 15-20 min):

• Tell me about yourself, are you belongs to MP or another place.
• Why you choose MCA.
• We’ll not hire you Now, what will you do.
• Tell me about your family (Some personal questions)
• Any question that you want to ask from us?

Round – 5 (HR 10-15 min):

• Same question tells me about yourself.
• Give quick three reasons for choosing Deutsche Bank?
• Give quick three reasons why should we hire you?
• Give quick three reasons why should not we hire you?
• Why do you want to come in a company that works for a bank? (I don’t remember this question exactly)
• Tell me about your family (Some personal question.
• Any question that you want to ask from us.

Tips:

• During DSA tech round never sit silently, even you are thinking about approaches.
• Never change your face expression during interview even they asked you negative question.
• Don’t make stories in PRO-FIT or HR round just say truth.
• They focus on OOPs concept so be prepare to face them, I revised with the help of love Babar’s roadmap where all imp topics are given with their links.
• In all rounds they never want to go in depth (if you want to explain with example, they simply said don’t need of example) for every question they just want basic knowledge, but try to learn with example it will help for another companies too and it makes us easy to explain our points.
• In DSA round they asked you to explain your approach or dry run verbally so do practice for that.
• If you don’t have internship so he will talk about your projects.