a) map b) reduce c) mapper d) reducer Answer: a Explanation: The Mapper outputs are sorted and ...
View QuestionUsers can specify a different symbolic name for files and archives passed through -files and -archives option, using __________
a) $ b) @ c) # d) $ Answer: c Explanation: MapReduce is the primary method for ...
View QuestionThe option ___________ allows to pass comma separated list of archives as arguments.
a) optionname b) -libjars c) -archives d) none of the mentioned Answer: c Explanation: These archives are ...
View QuestionThe ________ option allows applications to add jars to the classpaths of the maps and reduces.
a) optionname b) -libjars c) -archives d) all of the mentioned Answer: b Explanation: Applications can specify ...
View QuestionKey classes have to implement the __________ interface to facilitate sorting by the framework.
a) Writable b) Comparable c) WritableComparable d) None of the mentioned Answer: c Explanation: Input and Output ...
View QuestionThe key and value classes have to be _________ by the Mapreduce framework.
a) collected b) serializable c) compacted d) none of the mentioned Answer: b Explanation: Writable interface needs ...
View QuestionPoint out the wrong statement.
a) MapReduce configuration allows the framework to effectively schedule tasks on the nodes where data is already present
View QuestionHadoop _________ is a SWIG- compatible C++ API to implement MapReduce applications.
a) Streaming b) Pipes c) Orchestration d) All of the mentioned Answer: b Explanation: The MapReduce framework ...
View QuestionHadoop __________ is a utility which allows users to create and run jobs with any executables.
a) Streaming b) Pipes c) Orchestration d) All of the mentioned Answer: a Explanation: Applications specify the ...
View QuestionPoint out the correct statement.
a) Another limitation of the Hadoop MapReduce framework is its pull-based scheduling model b) The MapReduce framework sorts ...
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