What does the following WebHDFS command do?Curl -1 -L "http://host:port/webhdfs/v1/foo/bar?op=OPEN"
Answer(s): B
In Hadoop 2.0, which TWO of the following processes work together to provide automatic failover of the NameNode? Choose 2 answers
Answer(s): B,C
Which one of the following statements is FALSE regarding the communication between DataNodes and a federation of NameNodes in Hadoop 2.0?
Answer(s): A
What is the term for the process of moving map outputs to the reducers?
Answer(s): D
Which one of the following statements is true regarding a MapReduce job?
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q23, its an array, isnt it? starts with [ and end with ]. its an array of objects, not object.
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