Advanced Analytics Specialist Exam for Data Scientists (E20-065) - EMC

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Sample E20-065 Exam Questions & Explanations

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Question #1 Verified Q&A
In multinomial logistic regression, what is used to calculate the probability of outcome occurring?
A Logistic function applied to a linear combination of the input variables
B Logistic function applied to a linear combination of the input and outcome variables
C Linear regression applied to a combination of input and outcome variables
D Linear regression applied to a combination of input variables
Correct Answer: Linear regression applied to a combination of input variables
Question #2 Verified Q&A
What is a characteristic of spark?
A Supports workflows that can return to previous work steps
B Unable to run map -> reduce execution plans
C Less efficient processing small files than Hadoop MapReduce
D Supports applications written in Python, Java, and Scala
Correct Answer: Supports applications written in Python, Java, and Scala
Question #3 Verified Q&A
In a connected, undirected graph of 5 nodes with 10 edges, how many more edges need to be added to make the clustering coefficient of every node equal 1?
A 15
B 0
C 10
D 5
Correct Answer: 0
Question #4 Verified Q&A
Which metric would be most helpful in identifying a node that may cause network disruption if the node were removed?
A PageRank
B Degree
C Betweenness
D Closeness
Correct Answer: Degree
Question #5 Verified Q&A
The naive Bayer classifier is trained over 1600 movie reviews and then tested over 400 reviews.<br />
<br />
Here is the resulting confusion matrix: 190 (TP) 10(FN) 80 (FP) 120(TN)<br />
<br />
What are the precision, recall, and the F1-score values?
A Precision 0.95; Recall: 0.613; F1-score: 0.745
B Precision0.95; Recall: 0704; F1-score: 0.809
C Precision 0.704, Recall: 0.95; F1-score: 0.809
D Precision 0.613, Recall: 0.95, F1-score: 0.745
Correct Answer: Precision 0.704, Recall: 0.95; F1-score: 0.809

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Our E20-065 (Advanced Analytics Specialist Exam for Data Scientists) practice question bank currently includes 66 verified questions with comprehensive explanations.
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The E20-065 (Advanced Analytics Specialist Exam for Data Scientists) question bank is built to mirror the real exam's format and topics, with detailed explanations for every answer so you understand the reasoning — not just memorize responses.
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