Big data engineer Interview Questions in United States | Glassdoor.co.in

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Big data engineer Interview Questions in United States

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telephonic with technical and SQL coding ) 1 hr Difference b/w SQL and HDFS How do you read, map and reduce and text file in spark ETL How do you create tables in Hive Group by and union with Customer tables Size of data in Hadoop cluster Data warehousing Primarily focused for 45 min on Hive, Spark, Hadoop, HDFS, data warehousing and ETL And, no status on the interview yet, but even though I answered all the questions but, I failed in one coding question of 2 so, I don’t have any hopes for next rounds. It may be useful for you all. Here is the question I got on Amazon Interview Input: SALES_MONTH | PRODUCT_ID |SALE_AMOUNT JAN - 2020 |P1 | 100 FEB - 2020 |P2 | 200 JAN - 2020 |P3 | 500 MARCH - 2020 |P4 | 10 OUTPUT SALES_MONTH | P1_TOTAL |P2_TOTAL JAN - 2020 |100 | 0 FEB - 2020 |0 | 200 MARCH - 2020 |10 | 0

Remove duplicates from an array. Rotate an array.

How can you update the partitioned data?

Why do you want to do your internship in Rakuten?

Times X{open, close} , Y{open, close} rec_type, status, time x1, open, 930 x1, close 1030 x2, open, 1035 y1, open, 1040 y2, open, 1041 x2, close, 1100 x3, open, 1110 x3, close, 1115 y1, close, 1120 y2, close, 1121 |---x1, open, 930 |---x1, close 1030 |-----x2, open, 1035 | y1, open, 1040----| | y2, open, 1041 ---+---| |-----x2, close, 1100 | | |---x3, open, 1110 | | |---x3, close, 1115 | | y1, close, 1120---| | y2, close, 1121-------| Find the pairs of x-type and y-type where they have any time overlap between them.

About current project, spark architecture and core java.

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When you would use Java instead of Python?

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