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HCatalog supports reading and writing files in any format for which a ________ can be written.(a) SerDE(b) SaerDear(c) DocSear(d) All of the mentionedThis question was addressed to me in an interview for internship.I want to ask this question from Introduction to Hcatalog topic in section Apache Spark, Flume, Lucene, Hama, HCatalog, Mahout, Drill, Crunch and Thrift of Hadoop

Answer»

The correct answer is (a) SERDE

Easiest explanation: By default, HCATALOG supports RCFile, CSV, JSON, and SequenceFile, and ORC file FORMATS. To use a CUSTOM format, you must provide the InputFormat, OutputFormat, and SerDe.



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