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Interview Questions

Interview Questions

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Browsing Category

Big Data

20 posts

What is the process to perform an incremental data load in sqoop ?

    Answer : Sqoop provides an incremental import mode.
    View Answer

    What is commodity hardware ?

      Answer : Commodity hardware is a low-cost system identified …
      View Answer

      What are the features of Apache HBase ?

        Answer : Linear and modular scalability…
        View Answer

        Difference between Hive and HBase ?

          Answer : Hive is a datawarehousing package built on the top of Hadoop…
          View Answer

          What are the different configuration files in Hadoop ?

            Answer : hadoop-env.sh,core-site.xml,hdfs-site.xml…
            View Answer

            What are the different types of file permissions in HDFS ?

              Answer : Hadoop distributed file system (HDFS) uses a specific permissions…
              View Answer

              Difference between nfs and hdfs ?

                Answer : NFS (Network File System) is one of the oldest and popular…
                View Answer

                Why do we need Data Locality in Hadoop ?

                  Answer : Datasets in HDFS store as blocks in DataNodes…
                  View Answer

                  What are the running modes of Hadoop ?

                    Answer : The three running modes of Hadoop are as follows…
                    View Answer

                    What are the configuration parameters in a “MapReduce” program ?

                      Answer : Input location of Jobs in the distributed file system…
                      View Answer

                      What are the core components of Hadoop ?

                        Answer : Hadoop is an open source framework that is meant…
                        View Answer

                        What are the features of Hadoop ?

                          Answer : Hadoop supports the storage and processing of big data…
                          View Answer

                          What is the difference between Hadoop and RDBMS ?

                            Answer : Hadoop Based on ‘Schema on Read’…
                            View Answer

                            How to recover a NameNode when it is down ?

                              Answer : Use the FsImage which is file system metadata…
                              View Answer

                              What are the Six V’s of Big Data ?

                                Answer : Volume represents the volume i.e. amount of data that is growing…
                                View Answer

                                Why Hadoop used for Big Data Analytics ?

                                  Answer : Big data analytics is the process of examining large data…
                                  View Answer

                                  What are the components of HDFS and YARN ?

                                    Answer : NameNode is the master node for processing metadata information…
                                    View Answer

                                    What are the steps to deploy a big data solution ?

                                      Answer : There are three steps to deploy a Big Data …
                                      View Answer

                                      How big data analysis helpful in increasing business revenue ?

                                        Answer : Big data analysis has become very important for the businesses…
                                        View Answer

                                        What is Big Data ?

                                          Answer : Big Data is a term associated with complex…
                                          View Answer

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