My list Top 10 Sqoop Interview Questions asked recently

10 top interview questions asked in recent interviews. We collected these questions from the candidates who gave interviews. Look at Sqoop tutorial before you move further.

Sqoop my list of interview Questions

  1. The first and best function of Sqoop?
    1. Sqoop can import individual tables or entire databases into HDFS. The data is stored in the native directories and files in the HDFS file system.
  2. What is export in Sqoop?
    1. Sqoop can export data directly from HDFS into a relational database using a target table definition based on the specifics of the target database.
  3. Why Sqoop uses mapreduce in import/export operations?
    1. Sqoop uses MapReduce to import and export the data, which provides parallel operation as well as fault tolerance.
  4. What does it mean non-Hadoop data?
    1. It is one of the most popular Big Data tools that leverages the competency to haul out data from a non-Hadoop data store by transforming information into a form that can be easily accessed and used by Big Data Hadoop
  5. What are the underlying technologies in Sqoop?
    1. It has a high degree of dependence on underlying technologies like HDFS and MapReduce.
  6. What is the data loading or import in Sqoop?
    1. Load directly into Hive tables, creating HDFS files in the background and the Hive metadata automatically
  7. Sqoop imports data into three kinds of data storage what are those?
    1. Hive Tables
    2. HDFS files
    3. Hbase (HBase is an open-source, distributed, versioned, non-relational database modeled after Google’s Bigtable)
  8. The nine functions of Sqoop?
    1. Full Load
    2. Incremental Load
    3. Parallel import/export
    4. Import results of SQL query
    5. Compression
    6. Connectors for all major RDBMS Databases
    7. Kerberos Security Integration
    8. Load data directly into Hive/Hbase
    9. Support for Accumulo
  9. Where Sqoop come into picture in Hadoop eco system?
    1. Sqoop comes into picture. Sqoop acts like a intermediate layer between Hadoop and relational database systems
  10. Whether Sqoop will do aggregations?
    1. Sqoop just imports and exports the data; it does not do any aggregations.

Author: Srini

Experienced software developer. Skills in Development, Coding, Testing and Debugging. Good Data analytic skills (Data Warehousing and BI). Also skills in Mainframe.