DUNNHUMBY IT SERVICES INDIA Lead Data Scientist Interview Questions and Answers

Q1. Questions were on my resume
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Q2. And also questions more on SQL and python
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Q3. Asked have you worked on any dash boards
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They gave me case study in interview based on that I had provide the solution.

Q1. They asked question regarding SQL, statistics and some project related questions
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Logical Questions (3 were asked), It took approx 30 mins

Simple aptitude questions

One easy leetcode problem and few MCQ on SQL/SAS/R/Python

Q1. Interview on statistics, probability
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Q1. Behavioural questions
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30 mins, Aptitude questions

SQL queries and bascis Python questions

Q1. Questions on my resume, my projects, basic python questions
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Q1. Behavioural questions
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Basic aptitude question, 50mins 50Qs

1 easy leetcode problem in 30mins and few MCQs based on SQL and SAS

Q1. Conceptual questions on machine learning and statisitcs
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Q1. Behavioural questions
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SQL, python, Java, logical, quant and basic English test

Q1. Correlation between one or two lists, basic ques on application of ML, questions based on projects etc
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Q1. What would you do if you recieve a better offer, what would you do if you are assigned a harsh deadline, etc
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Q1. Inorder, preorder , Postorder traversal of tree with full code
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Q2. Check valid anagram?
Ans. 
To check if two strings are valid anagrams, compare their sorted versions.
• Sort both strings and compare if they are equal.

• Ignore spaces and punctuation when sorting.

• Example: 'listen' and 'silent' are valid anagrams.

• Example: 'hello' and 'world' are not valid anagrams.
Answered by AI
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