Hortonworks Exam HDPCD Topic 3 Question 61 Discussion

Actual exam question for Hortonworks's HDPCD exam

Question #: 61
Topic #: 3

You have a directory named jobdata in HDFS that contains four files: _first.txt, second.txt, .third.txt and #data.txt. How many files will be processed by the FileInputFormat.setInputPaths () command when it's given a path object representing this directory?

AFour, all files will be processed

BThree, the pound sign is an invalid character for HDFS file names

CTwo, file names with a leading period or underscore are ignored

DNone, the directory cannot be named jobdata

EOne, no special characters can prefix the name of an input file

Show Suggested Answer

Suggested Answer: C

Files starting with '_' are considered 'hidden' like unix files starting with '.'.

# characters are allowed in HDFS file names.

by Ty at Jul 07, 2024, 01:19 AM

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Lashandra

7 months ago

This is a tricky one, but I'm gonna go with B. The pound sign is definitely not allowed in HDFS, so it'll only process three files.

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7 months ago

I think the answer is C. File names with a leading period or underscore are ignored, so only second.txt and third.txt will be processed.

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Craig

6 months ago

Actually, it's E

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Lashaunda

6 months ago

I'm pretty sure it's B

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Reita

6 months ago

No, I believe the answer is A

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Karol

7 months ago

I think the answer is C

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Maira

8 months ago

I think the answer is A) Four, all files will be processed.

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