Hadoop Input Output Operations MCQ question and answer with solution

1

What is the purpose of the Hadoop InputFormat?

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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2

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

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

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Answer & Solution

Answer: Option B

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3

What is the significance of the Hadoop OutputFormat?

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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4

In Hadoop MapReduce, what is the role of the CombineFileInputFormat?

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

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Answer & Solution

Answer: Option A

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5

What is the purpose of the Hadoop SequenceFile 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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6

In Hadoop, what does the term "Serialization" refer to?

A) Process input key-value pairs B) Convert data into a binary format C) Sort and shuffle data D) Distribute data to reducers

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Answer & Solution

Answer: Option B

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7

What is the primary function of the Hadoop RecordWriter?

A) Manage computation resources B) Write output key-value pairs C) Execute MapReduce jobs D) Manages Hadoop ecosystem tools

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Answer & Solution

Answer: Option B

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8

What is the purpose of the Hadoop FileInputFormat?

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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9

In Hadoop, what does the term "Deserialization" refer to?

A) Convert data into a binary format B) Process input key-value pairs C) Aggregate values on the reducer side D) Sort and shuffle data

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Answer & Solution

Answer: Option B

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10

What is the primary role of the Hadoop TextInputFormat?

A) Read and parse text-based input data B) Convert data into a binary format C) Store compressed key-value pairs D) Store unstructured data

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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