LinkedIn Hadoop

Hadoop linkedin assessment answers

Partitioner controls the partitioning of what data?

• intermediate values
• intermediate keys
• final keys
• final values

linkedin Hadoop quiz

SQL Windowing functions are implemented in Hive using which keywords?

• OVER, RANK
• UNION DISTINCT, RANK
• UNION DISTINCT, EXCEPT
• OVER, EXCEPT

linkedin Hadoop assessment answers

Rather than adding a Secondary Sort to a slow Reduce job, it is Hadoop best practice to perform which optimization?

• Break the Reduce job into multiple, chained Map jobs.
• Add a partitioned shuffle to the Reduce job.
• Break the Reduce job into multiple, chained Reduce jobs.
• Add a partitioned shuffle to the Map job.