Un dataset m'a été envoyé, je dois effectuer les opérations de nettoyage et faire une analyse descriptive des données sur pyspark.
Sr Data Engineer Interview Questions
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L1: core technical discussion for 1 hour( coding, system design, scenario based) L2: Client interviews ( 2 hours, detailed discussion about system design and integration and analytics, KPI) L3: Client interviews ( 2 hours, live project implementation)
Liquid Clustering, he just asked which framework you have worked, he should be more clear when asking questions
Search words in a huge file of characters.
Types of shuffling in Apache Spark
Tell me about a time when most of the other team members disagreed with you and you manged to convince them to your opinion.
Primarily SQL questions around basic joins, aggregates, filtration. Subsequent questions involved computing a median function from scratch which is non-trivial, and another involved using the PIVOT function in SQL.
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Describe fields in the dimension schema that you used in data warehouse.
What do you know about the company?
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