sql and python are practically the same as the ones you get as practice questions in the meta career site.
Data Engineer Interview Questions
Data Engineer Interview Questions
Data engineers zijn IT-professionals en zijn in bijna elke bedrijfstak nodig. Data engineers volgen gegevenstrends voor het vaststellen van de beste vervolgstappen voor bedrijven. Een cruciaal onderdeel van het werk van een data engineer bestaat uit het verwerken van ruwe gegevens tot bruikbare gegevens door datapipelines te creëren en gegevenssystemen te bouwen.
Meest gestelde sollicitatievragen voor een data engineer (M/V/X) en hoe te antwoorden
Vraag 1: Kunt u tot in detail uw kennisniveau van programmeertalen omschrijven?
Vraag 2: Leg in uw eigen woorden uit wat data engineering inhoudt.
Vraag 3: Kunt u uw ervaring met Apache Hadoop en databeheer in een cloudomgeving beschrijven?
20,944 data engineer interview questions shared by candidates
Python -Count distinct words in a sentence -Count the number of times a word appear in a sentence using a Hash Map -Return tuples of a list, matching each item to another item -Count the number of times a substring appear in a string SQL -Return min and max age of male/female who bought a product -Count the number of stores in a state with grand total ? 25000 sq feet
gave few columns, asked to design a model and based on the model 3/4 sql questions were asked
2) create daily revenue report between given start_date and end_date output schema: (order_date, number_of_customers, number_of_orders, daily_total_order_amount, mtd_order_amount) mtd_order_amount - total order_amt from the beginning of the month till order_date
List the strings that are anagrams from a set of strings?
A lot of SQL questions. General knowledge about how you would handle large amounts of data.
Calculating percentage of sales percentage of non dat and regular products Calculating percentage of sales that matched the start date and end date of the promotion Fill the none values in a list with the previous non none value
try to get a pattern out of string or json. ask you to translate numbers from 1 to 100 to names of numbers ( for example 34 translated to thirty-four). you need to come with a solution within 10 seconds, I am able to get it done within 2 minutes. That's not fast enough.
all question were just basic but sometimes the basic questions can be tricky like why we use main function in java ? why it is public? run program without main?
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