MapReduce Programming Model MCQ question and answer with solution

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What does the term "InputFormat" represent in MapReduce?

A) Defines how input data is read B) Defines the map output format C) Defines the reduce output format D) Defines the partitioning logic

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which phase in MapReduce is responsible for reading input data?

A) Map B) Reduce C) Shuffle D) InputFormat

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Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

What is the purpose of the MapReduce "Combine" phase?

A) Combine intermediate key-value pairs on the mapper side B) Distribute data to reducers C) Aggregate values on the reducer side D) Sort and shuffle data

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What is the function of the MapReduce "OutputFormat"?

A) Defines the map output format B) Defines the reduce output format C) Defines how input data is read D) Defines the partitioning logic

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

In MapReduce, what is the purpose of the Map task?

A) Sort and shuffle data B) Process input key-value pairs C) Aggregate values on the reducer side D) Distribute data across nodes

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

What is the purpose of the MapReduce "Partitioner"?

A) Distribute data across multiple nodes B) Aggregate values on the reducer side C) Sort and shuffle data D) Determine the reducer for each key

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Answer & Solution

Answer: Option D

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In MapReduce, what does the term "Map" refer to?

A) Task that processes the Map output B) Task that processes the Reduce output C) Task that processes the Map input D) Task that processes the Reduce input

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Answer & Solution

Answer: Option C

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What is the primary function of the MapReduce "Sort" phase?

A) Sort and shuffle data B) Combine intermediate key-value pairs on the mapper side C) Aggregate values on the reducer side D) Distribute data to reducers

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

In the MapReduce programming model, what is the role of the Hadoop TaskTracker?

A) Manage resource allocation B) Manage task execution in MapReduce jobs C) Manage HDFS metadata D) Execute MapReduce jobs

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Answer & Solution

Answer: Option B

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What is the purpose of the MapReduce "OutputCommitter"?

A) Manage storage layer B) Manage computation resources C) Execute MapReduce jobs D) Manage Hadoop ecosystem tools

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Answer & Solution

Answer: Option D

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MapReduce Programming Model MCQ question and answer with solution | Hadoop MCQs