MapReduce Programming Model MCQ question and answer with solution

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. . . . . . . . refers to incremental costs with no major impact on solution design, performance and complexity.

A) Scale-out B) Scale-down C) Scale-up D) None of the mentioned

Discuss

Answer & Solution

Answer: Option C

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

Point out the correct statement.

A) MapReduce tries to place the data and the compute as close as possible B) Map Task in MapReduce is performed using the Mapper() function C) Reduce Task in MapReduce is performed using the Map() function D) All of the mentioned

Discuss

Answer & Solution

Answer: Option A

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Mapper and Reducer implementations can use the . . . . . . . . to report progress or just indicate that they are alive.

A) Partitioner B) OutputCollector C) Reporter D) All of the mentioned

Discuss

Answer & Solution

Answer: Option C

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

Which of the following class provides a subset of features provided by the Unix/GNU Sort?

A) KeyFieldBased B) KeyFieldComparator C) KeyFieldBasedComparator D) All of the mentioned

Discuss

Answer & Solution

Answer: Option C

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

. . . . . . . . part of the MapReduce is responsible for processing one or more chunks of data and producing the output results.

A) Maptask B) Mapper C) Task execution D) All of the mentioned

Discuss

Answer & Solution

Answer: Option A

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. . . . . . . . function is responsible for consolidating the results produced by each of the Map() functions/tasks.

A) Reduce B) Map C) Reducer D) All of the mentioned

Discuss

Answer & Solution

Answer: Option A

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

Point out the correct statement.

A) Hadoop is ideal for the analytical, post-operational, data-warehouse-ish type of workload B) HDFS runs on a small cluster of commodity-class nodes C) NEWSQL is frequently the collection point for big data D) None of the mentioned

Discuss

Answer & Solution

Answer: Option A

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

Hadoop data is not sequenced and is in 64MB to 256MB block sizes of delimited record values with schema applied on read based on . . . . . . . .

A) HCatalog B) Hive C) Hbase D) All of the mentioned

Discuss

Answer & Solution

Answer: Option A

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

Point out the correct statement.

A) You can specify any executable as the mapper and/or the reducer B) You cannot supply a Java class as the mapper and/or the reducer C) The class you supply for the output format should return key/value pairs of Text class D) All of the mentioned

Discuss

Answer & Solution

Answer: Option A

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The right number of reduces seems to be . . . . . . . .

A) 0.90 B) 0.80 C) 0.36 D) 0.95

Discuss

Answer & Solution

Answer: Option D

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

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