In which field do I have the interest.
Data Engineer Interview Questions
18,733 data engineer interview questions shared by candidates
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.
tell me about yourself, basic sql queries
Round 4: A problem you think that you have solved and most proud of and how people guided you or you have come up with something on your own?
Pyspark questions, sql questions, project related questions, python programming questions
reason for applying to agency
How to optimize code with oops concept in python
What are table indexes, how many are there, and what differences do they have?
SQL question Assume data base with students Table with students final grades Name - Subject - Grade 1 Find the top 3 ranks. 2 Find top 3 subject wise 3 Find top 3 grade wise
past work experience ? tell me about yourself?
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