-¿Cómo se puede realizar un join en hadoop, que tipos hay? -¿Para qué sirve realizar un broadcast en spark, que ventaja tiene? -¿Es factible unir dos tablas gigantes en spark con broadcast, que técnica se puede utilizar? -SOLID -¿Qué hay que tener en cuenta a la hora de definir la key en HBASE? -Describe un uso correcto de caché y persist.
Why Mapbox?
1. Difference b/w map reduce ans spark 2. What is master node in EMR 3. Difference b/w left outer , right outer , inner , and full outer join
Behavioral round was classic questions about past projects, talking about difficult times, etc.
Tell me about your experience
What will you do if there’s a break in your pipeline
Explain RAID to me as if I was a client with no technical background
System Design Question to ingest billions of live events.
Round 1: Discuss a project related to data engineering. Challenges, conflicts, what to do differently.
They asked me a DSA question
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