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 E20-065 Dumps with Practice Exam Questions Answers

Questions: 66 questions

Last Update: Dec 19, 2024

EMC Certification Exam E20-065 has been designed to measure your skills in handling the technical tasks mentioned in the certification syllabus

E20-065 Exam Last Week Results!

20

Customers Passed
EMC E20-065

90%

Average Score In Real
Exam At Testing Centre

93%

Questions came word by
word from this dump

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E20-065 Questions and Answers

Question # 1

What is a characteristic of spark?

A.

Unable to run map -> reduce execution plans

B.

Supports applications written in Python, Java, and Scala

C.

Less efficient processing small files than Hadoop MapReduce

D.

Supports workflows that can return to previous work steps

Question # 2

Which library is NOT part of the Apache Spark distribution?

A.

MLib

B.

NLTK

C.

GraphX

D.

Spark SQL

Question # 3

What do lemmatization and stemming have in common?

A.

Use WordNet

B.

Remove common words in a natural language

C.

Reduce the high dimensionality in text

D.

Use a set of heuristics

Question # 4

What is a typical use of a UDF in Pig?

A.

Creating functionality outside of what is provided by the built-in functions

B.

Providing Functional access to user-defined data in HDFS

C.

Providing advanced analytics to Hadoop

D.

Providing an interface from Pig to Microsoft Excel for easier data manipulation

Question # 5

The naive Bayer classifier is trained over 1600 movie reviews and then tested over 400 reviews.

Here is the resulting confusion matrix:

190 (TP) 10(FN)

80 (FP) 120(TN)

What are the precision, recall, and the F1-score values?

A.

Precision0.95; Recall: 0704; F1-score: 0.809

B.

Precision 0.613, Recall: 0.95, F1-score: 0.745

C.

Precision 0.704, Recall: 0.95; F1-score: 0.809

D.

Precision 0.95; Recall: 0.613; F1-score: 0.745