1. Print out the nodes in a undirected graph using BFS traversal. 2. Clone Graph 3. Find the largest rectangle in histogram
Senior Data Engineer Interview Questions
2,394 senior data engineer interview questions shared by candidates
1. Talk about the projects that you worked, challenges and how did you solve them.
Different modes in power bi
Some data modeling concepts & fact/dim designs. Lots of SQL. The SQL is heavy on entry level questions. Textbook oriented entry SQL questions, instead of practical entry SQL. One window function but easy, medium difficulty if you're not a regular window function user.
Cannot share due to NDA.
Sql: stored procedure question, python basic dsa
Why Hadoop? ( Compare to RDBMS) ... What would happen if NameNode failed? How do you bring it up? ... What details are in the “fsimage” file? ... What is SecondaryNameNode? ... Explain the MapReduce processing framework? (start to end) ... What is Combiner? ... What is Partitioner? ... Oozie – What are the nodes?
Step by step implementation of a data pipeline.
Q: Spark Architecture, how is it different and what are pros and cons?
Explain ETL Process in detail, which tool have you used?
Viewing 1611 - 1620 interview questions