Hadoop Input Output Operations MCQ question and answer with solution

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In Hadoop, what is the purpose of the Hadoop SequenceFileInputFormat?

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

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

What is the function of the Hadoop MultipleOutputs class?

A) Manage computation resources B) Write output to multiple files C) Execute MapReduce jobs D) Manages Hadoop ecosystem tools

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Answer & Solution

Answer: Option B

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What does the term "Combiner" represent in the context of Hadoop I/O?

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

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Answer & Solution

Answer: Option A

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In Hadoop, what is the purpose of the Hadoop MapFile format?

A) Store compressed key-value pairs B) Store unstructured data C) Store data in a columnar format D) Store data in a binary format

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Answer & Solution

Answer: Option D

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What is the primary role of the Hadoop OutputCommitter?

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

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Answer & Solution

Answer: Option B

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What is the role of the Hadoop AvroInputFormat?

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

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Answer & Solution

Answer: Option A

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What does the term "SerDe" stand for in the context of Hadoop?

A) Serialization/Deserialization B) Serial Disk Encoding C) Server-Defined D) Service Deployment

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Answer & Solution

Answer: Option A

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In Hadoop, what is the purpose of the Hadoop NLineInputFormat?

A) Process data in compressed formats B) Read and parse text-based input data C) Sort and shuffle data D) Aggregate values on the reducer side

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Answer & Solution

Answer: Option B

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What is the function of the Hadoop FileOutputFormat?

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

Discuss

Answer & Solution

Answer: Option C

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

In Hadoop, what is the primary role of the Hadoop SequenceFileOutputFormat?

A) Write output to a SequenceFile B) Write output to multiple files C) Convert data into a binary format D) Store compressed key-value pairs

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Answer & Solution

Answer: Option A

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Hadoop Input Output Operations MCQ question and answer with solution | Hadoop MCQs