What is Hadoop? What is Spark? And very silly questions like why use a Message Queue and not a Database.
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 ?
20,303 data engineer interview questions shared by candidates
About project , architectures ,some basics like partition,bucketing,RDD, Data frames, DAG execution engine, why from Hive to Spark SQL, difference between RDD, DataFrames, Datasets, how to make joins between data frames, what to do in spark job if our infrastructure is limited.
Azure Batch Storage and .Net applications
Can you walk us through the process of designing an end-to-end data pipeline, including data ingestion, transformation, and loading (ETL), and how you would ensure its scalability and reliability?
What is a failure you’ve learned from?
Slowly Changing Dimension Types (DataWarehouse - SCDs)
Considerations to define table structure with billion of records
Architecture and ETL process of my previous employment with an example of End to end ETL flow. Couple of questions on AWS services. Learning spirit Differences between batch processing and stream processing. Questions on Kappa architecture Many more relavent to my previous experience mentioned in CV
What was my previous experience.
Get rows where price decreased compared to the previous date petrol_details (pump, products, price, date)? [ (PUMP-1, Petrol, 100.05, 2025-01-01), (PUMP-1, Petrol, 98.00, 2025-01-02 ), (PUMP-1, Diesel, 90.00. 2025-01-01 ), (PUMP-1, Diesel, 95.00, 2025-01-02 ), (PUMP-2, Petrol, 101.05, 2025-01-01), (PUMP-2, Petrol, 97.99, 2025-01-02 ), (PUMP-2, Diesel, 90.05. 2025-01-01 ), (PUMP-2, Diesel, 86.00, 2025-01-02 )]
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