Querying with Hive MCQ question and answer with solution

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What is the role of the Hive EXPLAIN statement?

A) Create a new table in Hive B) Update data in a table C) Display the execution plan for a Hive query D) Retrieve data from a table

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In Hive, what is the purpose of the JOIN statement?

A) Sort records based on a column B) Filter records based on a condition C) Group records based on a column D) Combine data from multiple tables

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Answer & Solution

Answer: Option D

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What is the significance of the Hive HCatalog?

A) A table and storage management layer for Hadoop B) A data type in Hive C) A query language for HBase D) A distributed file system

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Answer & Solution

Answer: Option A

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In Hive, what is the role of the LIMIT clause in a SELECT statement?

A) Create a new table in Hive B) Update data in a table C) Retrieve all records from a table D) Restrict the number of records returned

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Answer & Solution

Answer: Option D

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What is the primary purpose of the Hive HDFS Storage Handler?

A) Execute MapReduce jobs B) Manage computation resources C) Allow Hive to interact with HDFS for storage D) Perform data analytics in Hadoop

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Answer & Solution

Answer: Option C

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In Hive, what is the primary purpose of the ORDER BY clause in a SELECT statement?

A) Group records based on a column B) Sort the result set based on specified columns C) Join records from multiple tables D) None of the above

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Answer & Solution

Answer: Option B

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What is the role of the Hive CLI (Command-Line Interface) in Apache Hive?

A) Perform data analytics in Hadoop B) Manage computation resources C) Interactive shell for Hive queries D) Execute MapReduce jobs

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Answer & Solution

Answer: Option C

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In Hive, what does the term "SerDe" stand for?

A) Storage/Retrieval B) Select/Delete C) Server/Database D) Serializer/Deserializer

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Answer & Solution

Answer: Option D

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What is the purpose of the Hive OVER() clause in a SELECT statement?

A) Specify window functions for analytical queries B) Filter records based on a condition C) Sort the result set based on specified columns D) Group records based on a column

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Answer & Solution

Answer: Option A

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In Hive, what is the role of the INDEX clause in a CREATE TABLE statement?

A) Group records based on a column B) Sort the result set based on specified columns C) Filter records based on a condition D) Create an index on a specified column

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Answer & Solution

Answer: Option D

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Querying with Hive MCQ question and answer with solution | Hadoop MCQs