BDA Bits-1

Front

In Apache Pig, the default execution mode is ____. A. Atom B. Map Reduce C. Tez D. Local

Back

Map Reduce

Front

____ data types indicates any single value in Pig Latin.

Back

Atom

Front

A collection of tuples in Pig environment is known as ____.

Back

Bag

Front

____ operator is used to group the data in one or more relations.

Back

Group By

Front

Write a piglatin script to get the id, age, and city values of each student from the relation student_details and store it into another relation named output_result. Note: Load statement is Optional output_result = FOREACH student_details GENERATE id, age, city;

Back

output_result = FOREACH student_details GENERATE id, age, city;

Front

In Pig Environment ____ operator is used to get a limited number of tuples from a relation.

Back

LIMIT

Front

____ function is used to split a string (which contains a group of words) in a single tuple and return a bag which contains the output of the split operation.

Back

Tokenize

Front

Which of the following statements about Apache HBase is true? HBase is a relational database management system (RDBMS), HBase is based on the MapReduce framework, HBase is a distributed, column-oriented database, HBase does not support horizontal scalability

Back

HBase is a distributed, column-oriented database

Front

In Hbase, the master server assigns regions to the region servers and takes the help of apache ____ for this task.

Back

Zookeeper

Front

MapReduce framework takes input in the format of ____. Options: Text files, Key-value pairs, XML documents, CSV files

Back

Key-value pairs