Deutsche Bank interview questions
Online test → Technical → Technical → Managerial → HR·68% entry level
CS fundamentals
Showing 30 of 673 reported in this area
Explain ACID properties in DBMS.
What is a deadlock in Operating Systems?
What is the difference between SQL and MongoDB?
Explain polymorphism in object-oriented programming.
Explain the difference between mutex and semaphore.
Explain the internal implementation of HashMap
Compare SQL and NoSQL databases
Compare arrays and linked lists.
What is paging in operating systems?
Explain different types of SQL joins.
Difference between Array and Linked List.
Difference between a router and a bridge.
Explain inheritance and virtual functions.
Difference between SQL and NoSQL databases.
Explain the difference between DBMS and RDBMS.
What are the differences between C++ and Java?
What is the difference between an Array and a List?
Difference between Machine Learning and Deep Learning.
Differentiate between DDL, DML, and DCL with examples.
Explain the difference between Merge Sort and Quick Sort.
What is the difference between a Compiler and an Interpreter?
What are encapsulation and abstraction in object-oriented programming?
Explain the difference between method overloading and method overriding.
Write an SQL query to find the second highest salary from an employee table
Explain common Git commands and their differences. What is the master branch?
What is the difference between compile-time polymorphism and run-time polymorphism?
What is Belady’s Anomaly?
What is non-blocking I/O?
Write a nested SQL query.
Explain Banker’s Algorithm
DSA
Showing 18 of 415 reported in this area
Reverse a linked list.
Explain Heap Sort algorithm.
Write the merge sort algorithm
Reverse a singly linked list.
Detect a loop in a linked list.
Find all triplets in an array with a given sum.
Solve the Coin Change problem using dynamic programming.
Explain the Quick Sort algorithm and write its pseudocode.
Count possible paths from top-left to bottom-right in an N x M matrix
Given an array, find the maximum value of a[i] + (a[j] * a[k]) such that i < j < k and a[i] < a[j] < a[k].
Given n numbers, you can remember k distinct integers. For every extra integer you can't remember, you have to pay a value X. Find the total amount you have to pay.
Given an array, find the minimum cost of jumping out of the array. You can either jump 2 indices forward or 1 index backward, and the cost of a jump from index i is a[i].
Implement a queue using two stacks.
Search for a key in a Binary Search Tree.
Add 1 to a number represented as a string.
Explain heap sort and its time complexity.
Explain linked list insertion and deletion operations.
Implement Kadane’s Algorithm to find the maximum subarray sum.
Behavioural
Showing 3 of 98 reported in this area
How would you handle a situation where a team member is not contributing and you are overloaded with work?
How do you approach a design problem? Explain the steps.
How will you handle an underperforming member of your team?
Puzzles
Showing 3 of 44 reported in this area
Puzzle: Long walking problem
Puzzle: Maximum run in cricket
Three thieves and a river crossing puzzle.
System design
Showing 3 of 18 reported in this area
Design a Tic-Tac-Toe game.
Design and implement an LRU Cache
Design a database schema for a school.
Aptitude
Showing 3 of 9 reported in this area
Given a number sequence, find the next number in the series and code it.
Given N, find two numbers whose product is greater than or equal to N and whose sum is minimum.
Find the next number in the series: 1, 2, 5, 10, _
Showing 60 of 985 questions. Ranked by how often the same question came back across reports.
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What questions does Deutsche Bank ask?
Candidate interview reports most often cover CS fundamentals (54%) and DSA (33%).
How many rounds does Deutsche Bank interview have?
Candidate interview reports show an average of 4.5 rounds per experience, with a typical sequence of Online test → Technical → Technical → Managerial → HR. Individual interview paths can vary.
Is the Deutsche Bank interview hard?
Among questions with a reported difficulty, the mix is easy 52%, medium 44%, hard 4%.