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WalMart Data Science Interview Questions

Questions Answers Views Company eMail

Write the code to reverse a Linked list.

424

What assumptions does linear regression machine learning algorithm make?

347

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

358

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?

417

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

318

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

335

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

321

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

316

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

348

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

329

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Un-Answered Questions

You are a project manager for Uncle Sam's Flag Company. Your company has designed a new line of products featuring the American flag. Due to some unique circumstances, the products are in hot demand and the project sponsor has asked you to do whatever it takes to get this project completed early and make the products available. You regularly check the progress of the project with your team members using which of the following techniques? A. E-mail communication B. Status review meetings C. Project management information systems D. Receiver communication model

1136

Which is better to grow plants in rock sand or soil?

1013

What is qtpro? What is a quick test professional?

1054

What is the difference between @configuration and @component?

515

Is a form of interprocess communication?

1149

what is natural frequency of turbine shaft .

2291

Does powerpoint have helvetica?

380

What is route53? what are the types of web hosting and the differences between them?

259

What are the applications of electrochemical cell? : Electrochemistry Corrosion

1147

What is the purpose of regexp_label property and regexp_msw_class property?

1196

Why session is used in asp.net?

1016

What is the latest version of mysql?

985

what is interpose? where it is used and why it is used?

1056

HOW TO SOLVE A NUMERICAL OF LRU IN OS ??????

2689

Tell me how can the user get a text of a web element?

946