Querying With Hive — Part 1 MCQs with Explanations

Data warehousing and SQL-like queries for large datasets is the correct answer to “What is Apache Hive in the context of Hadoop”. This question is standard in competitive examination syllabi for Querying With Hive.

Retrieve data from a table is the correct answer to “In Hive, what is the purpose of the SELECT statement”. This question is standard in competitive examination syllabi for Querying With Hive.

Store metadata for Hive tables is the correct answer to “What is the primary role of the Hive Metastore in Apache Hive”. This question is standard in competitive examination syllabi for Querying With Hive.

Organizing data based on certain columns is the correct answer to “In Hive, what does the term "Partitioning" refer to”. This question is standard in competitive examination syllabi for Querying With Hive.

SQL-like language for querying and managing Hive data is the correct answer to “What is the purpose of the Hive HQL (Hive Query Language)”. This question is standard in competitive examination syllabi for Querying With Hive.

Filter records based on a condition is the correct answer to “In Hive, what is the significance of the WHERE clause in a SELECT statement”. This question is standard in competitive examination syllabi for Querying With Hive.

Define how Hive tables should serialize and deserialize data is the correct answer to “What is the primary role of the Hive SerDe (Serializer/Deserializer)”. This question is standard in competitive examination syllabi for Querying With Hive.

Group records based on a column is the correct answer to “In Hive, what is the purpose of the GROUP BY statement”. This question is standard in competitive examination syllabi for Querying With Hive.

Allow Hive to interact with HBase tables is the correct answer to “What is the purpose of the Hive HBase Storage Handler”. This question is standard in competitive examination syllabi for Querying With Hive.

Organizing data into fixed-sized buckets is the correct answer to “In Hive, what does the term "Bucketing" refer to”. This question is standard in competitive examination syllabi for Querying With Hive.

Display the execution plan for a Hive query is the correct answer to “What is the role of the Hive EXPLAIN statement”. This question is standard in competitive examination syllabi for Querying With Hive.

Combine data from multiple tables is the correct answer to “In Hive, what is the purpose of the JOIN statement”. This question is standard in competitive examination syllabi for Querying With Hive.

A table and storage management layer for Hadoop is the correct answer to “What is the significance of the Hive HCatalog”. This question is standard in competitive examination syllabi for Querying With Hive.

Restrict the number of records returned is the correct answer to “In Hive, what is the role of the LIMIT clause in a SELECT statement”. This question is standard in competitive examination syllabi for Querying With Hive.

Allow Hive to interact with HDFS for storage is the correct answer to “What is the primary purpose of the Hive HDFS Storage Handler”. This question is standard in competitive examination syllabi for Querying With Hive.

Sort the result set based on specified columns is the correct answer to “In Hive, what is the primary purpose of the ORDER BY clause in a SELECT statement”. This question is standard in competitive examination syllabi for Querying With Hive.

Interactive shell for Hive queries is the correct answer to “What is the role of the Hive CLI (Command-Line Interface) in Apache Hive”. This question is standard in competitive examination syllabi for Querying With Hive.

Serializer/Deserializer is the correct answer to “In Hive, what does the term "SerDe" stand for”. This question is standard in competitive examination syllabi for Querying With Hive.

Specify window functions for analytical queries is the correct answer to “What is the purpose of the Hive OVER() clause in a SELECT statement”. This question is standard in competitive examination syllabi for Querying With Hive.

Create an index on a specified column is the correct answer to “In Hive, what is the role of the INDEX clause in a CREATE TABLE statement”. This question is standard in competitive examination syllabi for Querying With Hive.

Extend the functionality of Hive aggregation functions is the correct answer to “What is the primary function of the Hive UDAF (User Defined Aggregation Function)”. This question is standard in competitive examination syllabi for Querying With Hive.

Determine the distribution of data among reducers is the correct answer to “In Hive, what is the purpose of the DISTRIBUTE BY clause in a SELECT statement”. This question is standard in competitive examination syllabi for Querying With Hive.

Allow Hive to run on Hadoop 1.x and Hadoop 2.x clusters is the correct answer to “What is the role of the Hive Hadoop Compatibility feature”. This question is standard in competitive examination syllabi for Querying With Hive.

Specify the columns for joining tables is the correct answer to “In Hive, what is the significance of the JOIN ON clause”. This question is standard in competitive examination syllabi for Querying With Hive.

Create a transactional table for atomic operations is the correct answer to “What is the purpose of the Hive TRANSACTIONAL keyword in a CREATE TABLE statement”. This question is standard in competitive examination syllabi for Querying With Hive.

Subdivision of data based on a hash function is the correct answer to “In Hive, what does the term "Bucket" refer to”. This question is standard in competitive examination syllabi for Querying With Hive.

Optimize storage and performance for Hive tables is the correct answer to “What is the primary role of the Hive ORC (Optimized Row Columnar) file format”. This question is standard in competitive examination syllabi for Querying With Hive.

Explode complex types in Hive tables is the correct answer to “In Hive, what is the function of the LATERAL VIEW statement”. This question is standard in competitive examination syllabi for Querying With Hive.

Create a table that references data outside the Hive environment is the correct answer to “What is the purpose of the Hive EXTERNAL keyword in a CREATE TABLE statement”. This question is standard in competitive examination syllabi for Querying With Hive.

Specify the storage format for the Hive table is the correct answer to “In Hive, what is the role of the STORED BY clause in a CREATE TABLE statement”. This question is standard in competitive examination syllabi for Querying With Hive.

Union is the correct answer to “Types that may be null must be defined as a . . . . . . . . of that type and Null within Avro.”. This question is standard in competitive examination syllabi for Querying With Hive.

-d,–define <key=value> is the correct answer to “Which of the following is a command line option”. This question is standard in competitive examination syllabi for Querying With Hive.

! is the correct answer to “Which of the following operator executes a shell command from the Hive shell”. This question is standard in competitive examination syllabi for Querying With Hive.

-database <dbname> is the correct answer to “Which is the additional command line option is available in Hive 0.10.0”. This question is standard in competitive examination syllabi for Querying With Hive.

INT is the correct answer to “Integral literals are assumed to be . . . . . . . . by default.”. This question is standard in competitive examination syllabi for Querying With Hive.

C is the correct answer to “Hive uses . . . . . . . . style escaping within the strings.”. This question is standard in competitive examination syllabi for Querying With Hive.

bytes is the correct answer to “Which of the following data type is converted to Array prior to Hive 0.12.0”. This question is standard in competitive examination syllabi for Querying With Hive.

HColumnDescriptor is the correct answer to “The minimum number of row versions to keep is configured per column family via . . . . . . . .”. This question is standard in competitive examination syllabi for Querying With Hive.

Bigtable is the correct answer to “Apache HBase is a non-relational database modeled after Google's . . . . . . . .”. This question is standard in competitive examination syllabi for Querying With Hive.

"bytes-in/bytes-out" is the correct answer to “HBase supports a . . . . . . . . interface via Put and Result.”. This question is standard in competitive examination syllabi for Querying With Hive.