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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?

344

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.

316

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?

316

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

313

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

342

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

324

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Un-Answered Questions

What is helper library?

920

Explain functional concept of gsm and cdma?

1183

How to manually drop a table in sybase?

986

Is printf(?%d?,p); valid?

2043

What is interval control?

1113

if we give 60 hz single phase supply to the transformer used in europe , than what will happen

1926

How to get a list of all user accounts in the database?

1074

What is debt to GDP ratio of a country?

1073

Why do we use href?

778

How many types of custom reports in google analytics?

105

What are the Challenges with Node.js ?

457

Give an example for execution of sql statement.

1020

Can we use rdb-save along with commit, if yes then why? If not yes then why?

507

Which was the first indian bank to get an iso certification?

1239

What is Different between Joomla And Magento?

2808