Big Data Engineer Interview Questions

898 big data engineer interview questions shared by candidates

The questions were simple coding challenges that you can take in your preferred language. They were not difficult but to a beginner they might be. I have an intermediate-advanced understanding of python and the questions were cake to me.
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Big Data Engineer

Interviewed at Enhance IT

2.6
Oct 13, 2022

The questions were simple coding challenges that you can take in your preferred language. They were not difficult but to a beginner they might be. I have an intermediate-advanced understanding of python and the questions were cake to me.

The first round you will asked the following question. 1. Explain about the tera sort that happens between the map and reduce phase in hadoop job. 2. Explain about class loader, can you have more than one class loader in jvm. 3. Explain how indexing in implemented in sql databases, be prepared to take about b-tree and tree balancing algorithm. 4. How does java guarantee the hashmap look up in O(1). Round 2 1. You will asked to write java streaming code to parse infinite input while keeping memory low the output should predefined length of random sample.
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Big Data Engineer

Interviewed at ResearchGate

3
Oct 1, 2017

The first round you will asked the following question. 1. Explain about the tera sort that happens between the map and reduce phase in hadoop job. 2. Explain about class loader, can you have more than one class loader in jvm. 3. Explain how indexing in implemented in sql databases, be prepared to take about b-tree and tree balancing algorithm. 4. How does java guarantee the hashmap look up in O(1). Round 2 1. You will asked to write java streaming code to parse infinite input while keeping memory low the output should predefined length of random sample.

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