CS8791 Cloud Computing MCQ 8

________ is a platform for constructing data flows for extract, transform, and load (ETL) processing and analysis of large datasets.

• Pig Latin
• Oozie
• Pig
• Hive

Point out the correct statement.

• Hive is not a relational database, but a query engine that supports the parts of SQL specific to querying data
• Hive is a relational database with SQL support
• Pig is a relational database with SQL support
• All of the mentioned

_________ hides the limitations of Java behind a powerful and concise Clojure API for Cascading.

• Scalding
• HCatalog
• Cascalog
• All of the mentioned

Hive also support custom extensions written in ____________

• C#
• Java
• C
• C++

Point out the wrong statement.

• Elastic MapReduce (EMR) is Facebook’s packaged Hadoop offering
• Amazon Web Service Elastic MapReduce (EMR) is Amazon’s packaged Hadoop offering
• Scalding is a Scala API on top of Cascading that removes most Java boilerplate
• All of the mentioned

________ is the most popular high-level Java API in Hadoop Ecosystem

• Scalding
• HCatalog
• Cascalog
• Cascading

A ________ node acts as the Slave and is responsible for executing a Task assigned to it by the JobTracker.

• MapReduce
• Mapper
• TaskTracker
•  JobTracker

Point out the correct statement.

• MapReduce tries to place the data and the compute as close as possible
• Map Task in MapReduce is performed using the Mapper() function
• Reduce Task in MapReduce is performed using the Map() function
• All of the mentioned

___________ part of the MapReduce is responsible for processing one or more chunks of data and producing the output results.

• Maptask
• Mapper
• Task execution
• All of the mentioned

_________ function is responsible for consolidating the results produced by each of the Map() functions/tasks.

• Reduce
• Map
• Reducer
• All of the mentioned