Developing MapReduce Applications MCQ question and answer with solution

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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 role of the Hadoop TaskInputOutputContext in a MapReduce job?

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

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In a MapReduce application, what does the term "InputFormat" represent?

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

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Answer & Solution

Answer: Option A

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What is the significance of the Hadoop JobClient in a MapReduce job?

A) Manage computation resources B) Manage task execution in MapReduce jobs C) Execute MapReduce jobs D) Manage Hadoop ecosystem tools

Discuss

Answer & Solution

Answer: Option C

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In a MapReduce program, what is the purpose of the Hadoop 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 C

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What is the function 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

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Answer & Solution

Answer: Option A

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In a MapReduce application, what is the role of the Hadoop Job object?

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

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What is the purpose of the Hadoop RecordReader in a MapReduce job?

A) Reads and parses input data B) Manages computation resources C) Executes MapReduce jobs D) Manages Hadoop ecosystem tools

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 Configuration object?

A) Manage computation resources B) Set job-level configurations C) Execute MapReduce jobs D) Read and parse input data

Discuss

Answer & Solution

Answer: Option B

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

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

A) Aggregate values on the reducer side B) Generate intermediate key-value pairs 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

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