Datos Interview Questions

89,632 datos interview questions shared by candidates

Why you are leaving your current job? Why you want to join HCL Infosystems Ltd? A very practical database recovery scenario which normally don't happen at frequent intervals, were among other questions which made me to think twice before answering them.
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Database Administrator

Interviewed at HCL Infosystems

4.1
Aug 10, 2013

Why you are leaving your current job? Why you want to join HCL Infosystems Ltd? A very practical database recovery scenario which normally don't happen at frequent intervals, were among other questions which made me to think twice before answering them.

Bayes' Formular: Marbles: There are 30 red marbles and 10 black marbles in Urn #1. You have 20 red and 20 Black marbles in Urn 2. Randomly you pull a marble from the random urn and find that it is red. What is the probability that it was pulled from Urn #1
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Data Scientist

Interviewed at Zenefits

3.8
Dec 17, 2016

Bayes' Formular: Marbles: There are 30 red marbles and 10 black marbles in Urn #1. You have 20 red and 20 Black marbles in Urn 2. Randomly you pull a marble from the random urn and find that it is red. What is the probability that it was pulled from Urn #1

What's COPPA? What's UUID/idfa/VAST tag? What's confidence interval? What's t-test? What is this SQL query doing? Give me an example that you promised to finish a task by a certain date but you failed to finish it on time.
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BI Data Analyst

Interviewed at Pluto TV

4
Nov 5, 2019

What's COPPA? What's UUID/idfa/VAST tag? What's confidence interval? What's t-test? What is this SQL query doing? Give me an example that you promised to finish a task by a certain date but you failed to finish it on time.

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