Realtime Processing with Apache Spark MCQ question and answer with solution

81

. . . . . . . . mode is used when you just have a single server and want to launch all the daemon processes.

A) Local Mode B) Pseudo Distributed Mode C) Distributed Mode D) All of the mentioned

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Answer & Solution

Answer: Option B

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82

. . . . . . . . is a distributed machine learning framework on top of Spark.

A) MLlib B) Spark Streaming C) GraphX D) RDDs

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Answer & Solution

Answer: Option A

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83

Point out the wrong statement.

A) Apache Hama is not a pure Bulk Synchronous Parallel Engine B) Hama uses the Hadoop Core for RPC calls C) Apache Hama is optimized for massive scientific computations such as matrix, graph and network algorithms D) Hama is a relatively newer project than Hadoop

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Answer & Solution

Answer: Option A

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84

Hive does not have a data type corresponding to the . . . . . . . . type in Pig.

A) decimal B) short C) biginteger D) datetime

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Answer & Solution

Answer: Option C

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85

You can write to a single partition by specifying the partition key(s) and value(s) in the . . . . . . . . method.

A) setOutput B) setOut C) put D) get

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Answer & Solution

Answer: Option A

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86

Point out the wrong statement.

A) With Thrift, it is not possible to define a service and change the protocol and transport without recompiling the code B) Thrift includes server infrastructure to tie protocols and transports together, like blocking, non-blocking, and multi threaded servers C) Thrift supports a number of protocols for service definition D) None of the mentioned

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Answer & Solution

Answer: Option D

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87

DoFns provide direct access to the . . . . . . . . object that is used within a given Map or Reduce task via the getContext method.

A) TaskInputContext B) TaskInputOutputContext C) TaskOutputContext D) All of the mentioned

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Answer & Solution

Answer: Option B

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88

GraphX provides an API for expressing graph computation that can model the . . . . . . . . abstraction.

A) GaAdt B) Spark Core C) Pregel D) None of the mentioned

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Answer & Solution

Answer: Option C

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89

The . . . . . . . . class allows developers to exercise precise control over how data is partitioned, sorted, and grouped by the underlying execution engine.

A) Grouping B) GroupingOptions C) RowGrouping D) None of the mentioned

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Answer & Solution

Answer: Option B

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90

Hive, Pig, and Cascading all use a . . . . . . . . data model.

A) value centric B) columnar C) tuple-centric D) none of the mentioned

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Answer & Solution

Answer: Option C

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Realtime Processing with Apache Spark MCQ question and answer with solution | Hadoop MCQs