Advanced MapReduce Concepts MCQ question and answer with solution

91

. . . . . . . . class allows you to specify the InputFormat and Mapper to use on a per-path basis.

A) MultipleOutputs B) MultipleInputs C) SingleInputs D) None of the mentioned

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Answer & Solution

Answer: Option B

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92

The . . . . . . . . is a framework-specific entity that negotiates resources from the ResourceManager.

A) NodeManager B) ResourceManager C) ApplicationMaster D) All of the mentioned

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Answer & Solution

Answer: Option C

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93

. . . . . . . . method clears all keys from the configuration.

A) clear B) addResource C) getClass D) none of the mentioned

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Answer & Solution

Answer: Option A

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94

The . . . . . . . . is responsible for allocating resources to the various running applications subject to familiar constraints of capacities, queues etc.

A) Manager B) Master C) Scheduler D) None of the mentioned

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Answer & Solution

Answer: Option C

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95

Point out the wrong statement.

A) A Storage policy consists of the Policy ID B) The storage policy can be specified using the "dfsadmin -setStoragePolicy" command C) dfs.storage.policy.enabled is used for enabling/disabling the storage policy feature D) None of the mentioned

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Answer & Solution

Answer: Option D

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96

An input . . . . . . . . is a chunk of the input that is processed by a single map.

A) textformat B) split C) datanode D) all of the mentioned

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Answer & Solution

Answer: Option B

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97

. . . . . . . . is useful for iterating the properties when all deprecated properties for currently set properties need to be present.

A) addResource B) setDeprecatedProperties C) addDefaultResource D) none of the mentioned

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Answer & Solution

Answer: Option B

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98

. . . . . . . . is the architectural center of Hadoop that allows multiple data processing engines.

A) YARN B) Hive C) Incubator D) Chuckwa

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Answer & Solution

Answer: Option A

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99

Point out the wrong statement.

A) From the system perspective, the ApplicationMaster runs as a normal container B) The ResourceManager is the per-machine slave, which is responsible for launching the applications' containers C) The NodeManager is the per-machine slave, which is responsible for launching the applications' containers, monitoring their resource usage D) None of the mentioned

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Answer & Solution

Answer: Option B

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100

Which of the following storage policy is used for both storage and compute?

A) Hot B) Cold C) Warm D) All_SSD

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Answer & Solution

Answer: Option A

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Advanced MapReduce Concepts MCQ question and answer with solution | Hadoop MCQs