Free Printable MAP REDUCE

Worksheets

MAP REDUCE

Total questions: 18

Worksheet time: 18mins

Name

Class

Date

MapReduce programming model is meant to process small quantities of data.

True

False

MapReduce programming model was introduced by _________.

Microsoft

Google

Manjrasoft

Wipro

MapReduce programming model developed by Google in _________ language.

Python

Ruby

Java

.NET

The computation logic is expressed by two functions. Identify them.

Map

Shuffle

Aggregate

Reduce

Identify the component that handles the "data transfer and data management" in the MapReduce model.

Google File System (GFS)

File System (FS)

Key -> Value Pair

Map & Reduce functions

Output of ___________ is input to ___________ in the mapreduce programming model.

Reduce, Map

Map, Reduce

Map, Partitioner

Reduce, Aggregator

According to Google implementation, there are 2 types of processes. Which are they?

Monitor

Master

Worker

Leader

Identify the correct statement with respect to the master process.

Controls the execution of map task

Controls the execution of reduce task

Reorganizes the intermediate output from the map.

Hosts the execution of map and reduce task.

The worker process hosts the execution of the map and reduce tasks.

True

False

10.

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

MapReduce

Mapper

TaskTracker

JobTracker

11.

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

12.

___________ 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

13.

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

Reduce

Map

Reducer

All of the mentioned

14.

Although the Hadoop framework is implemented in Java, MapReduce applications need not be written in ____________

Java

None of the mentioned

15.

__________ maps input key/value pairs to a set of intermediate key/value pairs.

Mapper

Reducer

Both Mapper and Reducer

None of the mentioned

16.

The number of maps is usually driven by the total size of ____________

inputs

outputs

tasks

None of the mentioned

17.

Running a ___________ program involves running mapping tasks on many or all of the nodes in our cluster.

MapReduce

Map

Reducer

All of the mentioned

18.

Hadoop I/O Hadoop comes with a set of ________ for data I/O.

methods

commands

classes

none of the mentioned

Reset

MAP REDUCE

Total questions: 18

Worksheet time: 18mins

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