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WalMart Data Science Interview Questions

Questions Answers Views Company eMail

Write the code to reverse a Linked list.

486

What assumptions does linear regression machine learning algorithm make?

399

What data structures are available in the Pandas package in Python programming language?

392

A stranger uses a search engine to find something and you do not know anything about the person. How will you design an algorithm to determine what the stranger is looking for just after he/she types few characters in the search box?

453

What do you understand by parametric and non-parametric methods? Explain with examples.

351

State some use cases where Hadoop MapReduce works well and where it does not.

379

How will you fix multi-colinearity in a regression model?

364

Have you used sampling? What are the various types of sampling have you worked with?

356

What is the difference between an iterator, generator and list comprehension in Python?

404

What is the difference between a bagged model and a boosted model?

384

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Un-Answered Questions

What is the use of backbone.js setelement?

What is meta annotation?

429

Why is string buffer better than string ?

1198

What is the purpose of bleeder resistance in a rectifier circuit using l-c filter?

1145

What is the default font in word 2010?

631

What is subscript in swift?

947

Can I change the color of the worksheet tabs in my workbook?

669

Which goods movement is used to issue material with reference to a reservation triggered from a maintenance order?

900

What is the difference between instanceof and isinstance?

1130

Explain test bed?

1041

How do I update os?

923

Why do we use wcf services?

811

Write a program to display table of a number using php?

992

How to configure mapping in informatica?

1223

What is the difference between linux and android?

1005