Intelligent Big Data - Sqoop Assessment Test

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  • 1/10 Questions

    What is the best tool transfering data between Hadoop and relational database servers? 

    • Hive
    • Groovy
    • SQL
    • Sqoop
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About This Quiz

With or without the approach of big data, Sqoop is a tool with a command-line interface designed and used for conveniently and efficiently transferring bulk data between relational databases (and other structured datastores) and Hadoop.

Intelligent Big Data - Sqoop Assessment Test - Quiz

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  • 2. 
    Which of these tools transfer data from HDFS to RDBMS?  - ProProfs

    Which of these tools transfer data from HDFS to RDBMS? 

    • Handoop

    • Sqoop Export

    • Sqoop Import

    • Sqoop Mover

    Correct Answer
    A. Sqoop Export
    Explanation
    Sqoop Export is the correct answer because it is a tool specifically designed to transfer data from HDFS (Hadoop Distributed File System) to RDBMS (Relational Database Management System). Sqoop Import, on the other hand, is used to transfer data from RDBMS to HDFS. Hadoop and Sqoop Mover are not valid options as they do not perform data transfer between HDFS and RDBMS.

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  • 3. 
     A tool that Sqoop hosts a shared metadata repository is called....  - ProProfs

     A tool that Sqoop hosts a shared metadata repository is called.... 

    • Metallica

    • MetaStock

    • Metastore

    • Warehouse

    Correct Answer
    A. Metastore
    Explanation
    The correct answer is "Metastore" because a Metastore is a tool that Sqoop hosts a shared metadata repository. A metadata repository is a central location where metadata, which provides information about data, is stored and managed. Sqoop is a tool used for transferring data between Hadoop and relational databases, and it uses a Metastore to store and manage the metadata related to the data being transferred.

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  • 4. 
    What is the default file format for data import in Sqoop....  - ProProfs

    What is the default file format for data import in Sqoop.... 

    • Sequence file format

    • Doc

    • JPEG

    • Delimited Text File Format

    Correct Answer
    A. Delimited Text File Format
    Explanation
    The default file format for data import in Sqoop is the Delimited Text File Format. This format is commonly used for importing data from relational databases into Hadoop. It allows for easy parsing and processing of data as it is stored in a simple text format with each field separated by a delimiter, such as a comma or tab. This format is widely supported and can be easily read by various Hadoop tools and applications.

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  • 5. 
    Where does Sqoop import copy data from?  - ProProfs

    Where does Sqoop import copy data from? 

    • RDBMS

    • HDFS

    • FCT

    • HIVE

    Correct Answer
    A. RDBMS
    Explanation
    Sqoop is a tool used for importing data from relational databases (RDBMS) into Hadoop. It allows users to transfer data from a database table to the Hadoop Distributed File System (HDFS). Therefore, the correct answer is RDBMS.

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  • 6. 
     Which of these evaluates SQL statements and display results in Sqoop?  - ProProfs

     Which of these evaluates SQL statements and display results in Sqoop? 

    • Eval

    • Version

    • Help

    • Display

    Correct Answer
    A. Eval
    Explanation
    Eval is the correct answer because it is a command in Sqoop that allows users to evaluate SQL statements and display the results. It is used to test SQL queries and verify their correctness before running them against the database. This feature is particularly useful when troubleshooting or debugging SQL statements in Sqoop.

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  • 7. 
    How can you import only a subset of rows from a table? - ProProfs

    How can you import only a subset of rows from a table?

    • By using the WHERE clause

    • By using IMPORT

    • By using SUBSET

    • By using SELECT

    Correct Answer
    A. By using the WHERE clause
    Explanation
    The WHERE clause is used in SQL to filter rows based on a specified condition. By using the WHERE clause, you can specify a condition that must be met for a row to be included in the result set. This allows you to import only a subset of rows from a table that meet the specified condition, rather than importing the entire table.

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  • 8. 
    Where can the metastore database be hosted? - ProProfs

    Where can the metastore database be hosted?

    • Only inside the Hadoop cluster

    • Only outside the Hadoop cluster 

    • Both inside and outside the Hadoop cluster

    • Only on map

    Correct Answer
    A. Both inside and outside the Hadoop cluster
    Explanation
    The metastore database can be hosted both inside and outside the Hadoop cluster. This means that it can be located within the cluster itself, allowing for easy access and integration with other Hadoop components. However, it can also be hosted outside the cluster, providing flexibility and the ability to connect with external systems or tools. This allows for greater customization and scalability options for managing and accessing metadata in Hadoop.

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  • 9. 
    Which of these commands helps to generate code to interact with database records?  - ProProfs

    Which of these commands helps to generate code to interact with database records? 

    • Codegen

    • Help

    • Import

    • Eval

    Correct Answer
    A. Codegen
    Explanation
    The command "Codegen" helps to generate code that can be used to interact with database records. This code generation process simplifies the development of database-related functionality by automatically creating the necessary code for performing CRUD (Create, Read, Update, Delete) operations on the records. By using "Codegen," developers can save time and effort in writing repetitive code and focus more on implementing the business logic of their application.

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  • 10. 
    In Sqoop merge, which of the dataset is preserved?  - ProProfs

    In Sqoop merge, which of the dataset is preserved? 

    • The new one

    • The old one

    • The correct one

    • The incorrect one

    Correct Answer
    A. The new one
    Explanation
    In Sqoop merge, the dataset that is preserved is the new one. This means that when merging datasets, the new dataset will overwrite any conflicting data in the old dataset, ensuring that the latest data is retained.

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Quiz Review Timeline (Updated): Mar 22, 2023 +

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  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 20, 2018
    Quiz Created by
    Cripstwick
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