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Point out the correct statement.

(a) The sequence file also can contain a “secondary” key-value list that can be used as file Metadata

(b) SequenceFile formats share a header that contains some information which allows the reader to recognize is format

(c) There’re Key and Value Class Name’s that allow the reader to instantiate those classes, via reflection, for reading

(d) All of the mentioned

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My enquiry is from Hadoop I/O in portion Hadoop I/O of Hadoop

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Correct option is (d) All of the mentioned

The best I can explain: In contrast with other persistent key-value data structures like B-Trees, you can’t seek to specified key editing, adding or removing it.

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