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Hortonworks Exam HDPCD Topic 2 Question 58 Discussion

Actual exam question for Hortonworks's HDPCD exam
Question #: 58
Topic #: 2
[All HDPCD Questions]

Can you use MapReduce to perform a relational join on two large tables sharing a key? Assume that the two tables are formatted as comma-separated files in HDFS.

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Suggested Answer: C

by Oneida at Jun 02, 2024, 08:44 PM

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Shay
11 months ago
I'm confident it's C. 'hadoop fs -cat x' is the classic command for displaying file contents in HDFS. Easy peasy!
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Noah
10 months ago
Yes, 'hadoop fs -cat x' is the classic command for that.
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Tommy
10 months ago
I agree, 'hadoop fs -cat x' is the right command to display file contents in HDFS.
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Jerilyn
11 months ago
Haha, this is a trick question! The real answer is A - 'hadoop fs -Is x' shows the file listing, not the contents. Nice try, exam writers!
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Tarra
10 months ago
Actually, it's a trick question. The correct answer is A - 'hadoop fs -Is x'.
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Madonna
10 months ago
Me too, but I think the answer is C - 'hadoop fs -cat x'.
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Lizette
11 months ago
I always get confused with HDFS commands.
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Steffanie
11 months ago
I agree with Noelia, because the 'cat' command is used to display the contents of a file.
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Cruz
11 months ago
I'm going with D. 'hadoop fs -cp x' must be the way to copy the file, right? That's gotta be it.
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Marshall
11 months ago
Oh, I see. Thanks for the clarification. I'll remember to use 'hadoop fs -cat x' next time.
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Elinore
11 months ago
The correct command to display the contents of a file in HDFS is 'hadoop fs -cat x'.
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Wilda
11 months ago
No, that's not correct. 'hadoop fs -cp x' is used to copy files, not display the contents.
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Noelia
11 months ago
I think the answer is C) hadoop fs -cat x.
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Malcom
11 months ago
Hmm, I'm not sure about this one. Maybe it's B? 'hdfs fs -get x' sounds like it could display the file contents.
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Isreal
12 months ago
I think the answer is C. The 'hadoop fs -cat x' command displays the contents of the file x in the user's HDFS home directory.
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Ivory
10 months ago
Yes, that command will display the contents of the file x in the user's HDFS home directory.
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Vi
10 months ago
No, it's C) hadoop fs -cat x for sure
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Cathrine
11 months ago
I think it's A) hadoop fs -ls x
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Willard
11 months ago
I agree, the correct answer is C) hadoop fs -cat x.
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Johnetta
11 months ago
Yes, 'hadoop fs -cat x' is the command to display the contents of the file x in the user's HDFS home directory.
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Teddy
11 months ago
I agree, the correct answer is C) hadoop fs -cat x.
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Audria
11 months ago
I agree, the correct answer is C) hadoop fs -cat x
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