Developing MapReduce Applications MCQ question and answer with solution

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In a MapReduce program, what does the term "InputSplit" represent?

A) Represents a chunk of input data B) Combine intermediate key-value pairs on the mapper side C) Aggregate values on the reducer side D) Convert data into a binary format

Discuss

Answer & Solution

Answer: Option A

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

What is the primary purpose of the Hadoop OutputCommitter?

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

Discuss

Answer & Solution

Answer: Option C

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

In a MapReduce job, what is the function of the Hadoop TaskAttemptContext?

A) Manages computation resources B) Manages task execution in MapReduce jobs C) Executes MapReduce jobs D) Manages Hadoop ecosystem tools

Discuss

Answer & Solution

Answer: Option B

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

What is the role of the Hadoop Mapper.Context in a MapReduce application?

A) Generate intermediate key-value pairs B) Manages computation resources C) Execute MapReduce jobs D) Read and parse input data

Discuss

Answer & Solution

Answer: Option A

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

In a MapReduce program, what is the purpose of the Hadoop Counter class?

A) Track the progress of MapReduce jobs B) Manage computation resources C) Execute MapReduce jobs D) Manage Hadoop ecosystem tools

Discuss

Answer & Solution

Answer: Option A

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

What is the primary function of the Hadoop Reducer.Context in a MapReduce application?

A) Aggregate values on the reducer side B) Manages computation resources C) Execute MapReduce jobs D) Read and parse input data

Discuss

Answer & Solution

Answer: Option A

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

In a MapReduce program, what is the purpose of the Hadoop Mapper.Context?

A) Generate intermediate key-value pairs B) Manages computation resources C) Execute MapReduce jobs D) Read and parse input data

Discuss

Answer & Solution

Answer: Option A

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

What is the role of the Hadoop Job object in a MapReduce application?

A) Manages computation resources B) Manages task execution in MapReduce jobs C) Manages metadata of HDFS D) Executes MapReduce jobs

Discuss

Answer & Solution

Answer: Option D

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

In a MapReduce job, what does the term "Combiner" represent?

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

Discuss

Answer & Solution

Answer: Option A

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

What is the primary function of the Hadoop Partitioner in a MapReduce application?

A) Distribute data across multiple nodes B) Combine intermediate key-value pairs on the mapper side C) Sort and shuffle data D) Determine the reducer for each key

Discuss

Answer & Solution

Answer: Option D

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

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Developing MapReduce Applications MCQ question and answer with solution | Hadoop MCQs