Group bys in SQL
Data Engineer Interview Questions
Data Engineer Interview Questions
Le data engineer est un professionnel de l’informatique présent dans presque tous les secteurs. Il/Elle suit l’évolution et les tendances des données pour orienter les stratégies futures de l’entreprise. Une part essentielle de son travail consiste à transformer des données brutes en données exploitables en créant des pipelines et des systèmes de données.
Questions d'entretien d'embauche fréquentes pour un data engineer (H/F) et comment y répondre
Question 1 : Décrivez en détail votre niveau d’expertise en langage de programmation.
Question 2 : Expliquez selon vous en quoi consiste le data engineering.
Question 3 : Quelle est votre expérience en gestion de données dans le cloud et avec Apache Hadoop ?
20,200 data engineer interview questions shared by candidates
Ingest json documents in sqlite3 database. Answer to some analtical question using SQL queries and features important in the dataset, what more data you will need for further analysis
What are you looking for in an employer?
T'as eu une difficulté technologique, comment tu l'as résolu?
One thing they asked me was how I would approach integrating and normalizing data from multiple sources with different formats and grading systems. They were interested in understanding how I would handle discrepancies in movie titles, genres, and ratings across platforms, and how I would design a system to ensure consistency and reliability in the final aggregated ratings.
Question in Python: There was an input of a list of numbers and I had to return how many each value is in the list
they had asked queries and scenario based questions
What are dimensional and snowflake models?
Narrow and wide transformation in Spark
Clustered vs Non-clustered index? Schema changes? Incremental loads?
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