Sunday, 2 February 2014

    HADOOP INTERVIEW QUESTIONS AND ANSWERS :

    1) what is Daemon processes in Hadoop system?

    2)what is main D/B HDFS and NAS?

    3)what is writablecomparable and writable in Hadoop?

    4)What is side data distribution in hadoop?

    5)can you explain shuffleinh mapreduce?

    6)what is data partitioning?

    7)could you explain speculative execution ?

    8)Tell me about job tracker and task tracker?

    9)what use of hadoop?

    10)what big data analytics?

    11)tell about Hadoop configuration?

    12)What is metrics file do in hadoop?

    13) SSH localhost why password use?

    14) why did't use Windows for Hadoop?

    Ans) only use  Linux is best Operating Systems for Hadoop systems. Windows use installing Hadoop systems . so many problems we faced with Windows. thatswhy Windows is not use to Hadoop.

    15)what is  SSH in hadoop systems?

    16)what is port number of SSH work?

    Ans) port number 22 SSH is working.

    17) why we use Streaming?

    18) why we use combiner?

    19) why use HDFS Block and Input Split?

    20) are you rename output file in hadoop system?


    Ans) yes, we do rename the output file?
    Category: articles