I was asked to calculate the theoretical network throughput of a job running across several racks of machines in a cluster.
Hadoop Engineer Interview Questions
225 hadoop engineer interview questions shared by candidates
How Map reduce works explain with one scenario.
2. given dail pad and alphabet associated with each number (no alphabet for 1). if string contain all the number 2 to 9 inclusive, find all possible combination.
Hive query which change datatye of column. Hive query with 'rlike'. Group by query. Cartesian join query
Why is there no interviewer?
What is a block and block scanner in HDFS? ... Explain the difference between NameNode, Backup Node and Checkpoint NameNode. ... What is commodity hardware? ... What is the port number for NameNode, Task Tracker and Job Tracker? ... Explain “Big Data” and what are five V’s of Big Data? Why does one remove or add nodes in a Hadoop cluster frequently?
Java String builder, Array List concept.
What is hadoop and its componets
Questions were asked about my exp of working on Hadoop ecosystem. Mapreduce, Java, Hive, NoSql. There were few questions asked about Hadoop Admin, disaster recovery Plan and Business Continuity Plan. Secondary Sort in Mapreduce. Exp with different ETL tools.
Tell me about your projects,Few MR codes
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