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Writing MapReduce programs to analyze your Big Data can get complex. Hive can help make querying your data much easier. Apache Hive, first created at Facebook, is a data warehouse system for Hadoop that facilitates easy data summarization, ad-hoc queries, and the analysis of large datasets stored in Hadoop compatible file systems. Hive provides a mechanism to project structure onto this data and query the data using a SQL-like language called HiveQL. This course will get you started so that you can use Hive for Data Warehousing tasks on your Big Data projects.
Module 1 – Introduction To Hive
Question: Which company first developed Hive?
Question: Hive is a Data Warehouse system built on top of Hadoop. True or false?
Question: Which of the following is NOT a valid Hive Metastore config?
Module 2 – Hive DDL
Question: Which of the following commands will list the databases in the Hive system?
Question: MAPS are a Hive complex data type. True or false?
Question: An index can be created on a Hive table. True or false?
Module 3 – Hive DML
Question: LOAD DATA LOCAL means that the data should be loaded from HDFS. True or false?
Question: Which of the following commands is used to generate a Hive query plan?
Question: Data can be exported out of Hive. True or false?
Module 4 – Hive Operators and Functions
Question: Which of the following is NOT a built-in Hive function?
Question: Users can create their own custom user defined functions. True or false?
Question: Which of the following is NOT a valid Hive relational operator?
Question: What is the primary purpose of Hive in the Hadoop architecture?
Question: Hive is SQL-92 compliant and supports row-level inserts, updates, and deletes. True or false?
Question: In a production setting, you should configure the Hive metastore as:
Question: The Hive Command Line Interface (CLI) allows you to
Question: When using the Hive CLI, which option allows you to execute HiveQL that’s saved in a text file?
Question: Which statement is true of “Managed” tables in Hive?
Question: Hive Data Types include:
Question: The PARTITION BY clause in Hive can be used to improve performance by storing all the data associated with a specified column’s value in the same folder. True or false?
Question: The LOAD DATA LOCAL command in Hive is used to move a datafile in HDFS into a Hive table structure. True or false?
Question: The INSERT OVERWRITE LOCAL DIRECTORY command in Hive is used to
Question: Hive supports which type of join?
Question: With Hive, you can write your own user defined functions in Java and invoke them using HiveQL. True or false?
Question: Which of the following is a valid Hive operator for complex data types?
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