InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Apache Hadoop ___________ provides a persistent data structure for binary key-value pairs.(a) GetFile(b) SequenceFile(c) Putfile(d) All of the mentionedThis question was posed to me during an internship interview.Origin of the question is Hadoop I/O in chapter Hadoop I/O of Hadoop |
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Answer» CORRECT OPTION is (B) SEQUENCEFILE Explanation: SequenceFile is append-only. |
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| 52. |
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 mentionedThe question was asked in an online quiz.My enquiry is from Hadoop I/O in portion Hadoop I/O of Hadoop |
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Answer» 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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| 53. |
How many formats of SequenceFile are present in Hadoop I/O?(a) 2(b) 3(c) 4(d) 5I had been asked this question in my homework.This is a very interesting question from Hadoop I/O in chapter Hadoop I/O of Hadoop |
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Answer» Right CHOICE is (b) 3 |
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| 54. |
Hadoop I/O Hadoop comes with a set of ________ for data I/O.(a) methods(b) commands(c) classes(d) none of the mentionedThis question was posed to me in class test.This intriguing question originated from Hadoop I/O topic in portion Hadoop I/O of Hadoop |
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Answer» The CORRECT answer is (d) none of the mentioned |
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