hadoop

Which of the following are true about Hadoop?

• Open Source

• Distributed Processing Framework

• Distributed Storage Framework

• All of these

Hadoop can be deployed on Commodity Hardware?

• True

• False

Which of the following are false about Hadoop?

• Hadoop works in Master-Slave fashion

• Master & Slave both are worker nodes

• User submit his work on master, which distribute it to slaves

• Slaves are actual worker node

What is a Metadata in Hadoop?

• Data stored by user

• Information about the data stored in datanodes

• User information

• None of these

Which of following is the programming model designed for processing large volumes of data in parallel by dividing the work into a set of independent tasks.

• Hive

• Pig

• MapReduce

• HDFS

Mappers sorted output is Input to the-

• Reducer

• Mapper

• Shuffle

• All of the mentioned

Hadoop Framework is written in

• Java

• scala

• python

• c++

Which type of data Hadoop can deal with?

• Structured

• Semi-Structured

• Unstructured

• All of the above

The source of HDFS architecture in Hadoop originated as

• Google distributed filesystem

• Yahoo distributed filesystem

• Facebook distributed filesystem

• None of the above

What is HDFS?

• Storage layer

• Batch processing engine

• Resource Management Layer

• None of the above