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Data Engineer Interview Questions
Data Engineer Interview Questions
I Data engineer sono professionisti informatici richiesti pressoché in tutti i settori. Si occupano di monitorare i trend dei dati per pianificare le azioni più adeguate che un'azienda deve intraprendere. Uno degli aspetti più critici del lavoro di un Data engineer è l'elaborazione dei dati grezzi e la loro trasformazione in dati utilizzabili per creare pipeline e sistemi di dati.
Domande tipiche dei colloqui per Data engineer e come rispondere
Domanda 1: Puoi descrivere in dettaglio il tuo livello di competenza nell'ambito dei linguaggi di programmazione?
Domanda 2: Spiega a parole tue che cos’è il data engineering.
Domanda 3: Puoi descrivere un'esperienza lavorativa con Apache Hadoop e in ambienti di gestione dei dati nel cloud?
20,133 data engineer interview questions shared by candidates
private static Map<String, Integer> namesToNumPurchases = new HashMap<String, Integer>() {{ put("Chris", 10); put("Bob", 5); put("David", 5); put("Sue", 12); put("Jim", 3); }}; /* Required output: 3: Jim 5: Bob, David 10: Chris 12: Sue */
difference between Python and Scala
basic Java, Databases and datawarehousing, UNIX questions
Given a grid of size n, in how many moves you can reach from lower-left corner to upper-right corner?
Do you know Python, c++, have you have experience with GPS, are you available for a clearance?
Build out the architecture to go from a stream of user-level event data on their devices to time-aggregatable metrics in a dashboard.
Asked by the interviewer a "Data Engineer" to join 2 tables together to label start/end of a track play , only when I proposed a working solution he diverted me to another solution that he had in mind all along, thinking it was better as it didn't require window functions, but it did require them. He just didn't know they are called window functions. Admittedly, the "Data Engineer" said he hasn't worked on spark in a while, and is quite junior.
Resume Questions
Implement a sampling function with nominal distribution.
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