BDA 2023 - Module 4

The data processing layer is also called _____ layer

• Data consumption

• Ingestion

• Application support

• Storage

Pig is a _____ language

• Programming

• Database

• Query

• Dataflow

Hadoop MapReduce implementation uses _____ framework

• JSON

• CSV

• Java

• SQL

Input to the Mapper is in the form of _____

• Tuples

• Key-Value pair

• Records

• Files

Key value pairs are generated using _______

• InputSplit

• RecordReader

• Both

• None

Shuffle process _____ all the Mapper outputs by grouping the key values of the Mapper output

• Shuffles

• Aggregates

• Sorts

• Filters

The value part in the key-value pair of the Mapper output is actually a _____

• Value

• Array

• List

• Map

Scheduling, monitoring and re-executing failed tasks is taken care by _____

• YARN

• MapReduce

• Pig

• HBase

The primary way of achieving fault tolerance in Hadoop is by _____

• Backing up

• Parallel processing

• Replication

• Restarting the tasks

Collecting all items with same values of a function is called _____

• Grouping

• Summing

• Collating

• Aggregating