Questions d'entretien Senior Data Engineer chez iHeartMedia

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iHeartMedia

Entretiens

Entretien pour Senior Data Engineer

28 nov. 2018

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Offre refusée

Expérience positive

Entretien facile

Candidature

Le processus a pris 6 semaines. J'ai passé un entretien chez iHeartMedia (New York, NY) en nov. 2018

Entretien

Good overall process. Recruiter approached me through Vettery. Initial brief call with the recruiter. 2 Phone screens with the interviewer on my programming and SQL skills. Followed by 4 rounds onsite interview rounds with the team. Got the offer. However, I had to decline it.

Questions d'entretien [5]

Question 1

Least common ancestor of 2 nodes in a binary tree

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Question 2

Group strings of similar characters together. Basically using HashMap with sorted string as a key and values is the Linkedlist of strings

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Question 3

Joining 2 diff datasets using SQL. Using group by and order by

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Question 4

Basic understanding of Spark and the overall project architecture to see the use of Big Data tools. Differences between RDD, dataframe and datasets.

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Question 5

Use of different components in the project and importance of each of them to accomplish the user requirements.

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