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WalMart Data Science Interview Questions

Questions Answers Views Company eMail

Write the code to reverse a Linked list.

376

What assumptions does linear regression machine learning algorithm make?

321

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

330

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?

392

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

284

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

314

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

283

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

287

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

316

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

303

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Un-Answered Questions

What are the data integrator transforms?

824

Protactinium-231 decays to Uranium-235. How is this decay used in radiometric dating and the determination of geological ages?

518

If you were to migrate from angular 1.4 to angular 1.5, what is the main thing that would need refactoring?

751

When given a choice between using an infocube and a multiprovider, what factors to consider before making a decision?

Which of the algorithms is used by the weblogic server as the default load balancing strategy for clustered object stubs when no algorithm is specified ? : BEA Weblogic

1023

One House is being constructed by an Civil Engg. all pillars are as per structure, but north side there should be 4 pillars among two at back side were 6" inside from the border and remaining two comes front were placed 1'6" inside. is it ok as per vaastu, else if i alter the alignment what would be the best idea, kindly help me.

2679

What is a deep well socket?

874

Why we need to integrate struts with spring?

352

What is travelling salesman problem?

891

Where are the windows nt primary domain controller (pdc) and its backup domain controller (bdc) in server 2003?

290

What is spark slang for?

266

Why do we need break and continue in python?

795

What are system versioned tables?

970

What are the excel tools?

677

Explain prevent default method?