Cloudera Exam CCA175 Topic 1 Question 62 Discussion

Actual exam question for Cloudera's CCA175 exam

Question #: 62
Topic #: 1

Problem Scenario 62 : You have been given below code snippet.

val a = sc.parallelize(List("dogM, "tiger", "lion", "cat", "panther", "eagle"), 2)

val b = a.map(x => (x.length, x))

operation1

Write a correct code snippet for operationl which will produce desired output, shown below. Array[(lnt, String)] = Array((3,xdogx), (5,xtigerx), (4,xlionx), (3,xcatx), (7,xpantherx), (5,xeaglex))

ASolution :
b.mapValuesf'x' + _ + 'x').collect
mapValues [Pair] : Takes the values of a RDD that consists of two-component tuples, and applies the provided function to transform each value. Tlien,.it.forms newtwo-componendtuples using the key and the transformed value and stores them in a new RDD.

BSolution :
b.mapValuesf'x' + _ + 'x').collect
mapValues [Pair] : Takes the values of a RDD that consists of two-component tuples, and applies the provided function to transform each value.

Show Suggested Answer

Suggested Answer: B

by Chauncey at May 29, 2024, 09:03 AM

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Margarita

11 months ago

If I had a nickel for every time I had to work with JSON, I'd have enough to buy a new hard drive to store all these data files.

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11 months ago

Hmm, wonder if there's a way to make this even more efficient. Maybe use a different file format?

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Melina

10 months ago

User 2

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Hyun

11 months ago

User 1

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Gwen

11 months ago

Love the JSON data format! Makes it easy to work with.

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11 months ago

User 1

upvoted 0 times

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