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E20-007 - Data Science Associate - Dump Information

Vendor	:	EMC
Exam Code	:	E20-007
Exam Name	:	Data Science Associate
Questions and Answers	:	198 Q & A
Updated On	:	November 20, 2017
PDF Download Mirror	:	E20-007 Brain Dump
Get Full Version	:	Pass4sure E20-007 Full Version

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E20-007 Questions and Answers

QUESTION: 161

Refer to the exhibit. Exhibit.

You have scored your Naive bayesian classifier model on a hold out test data for cross validation and determined the way the samples scored and tabluated them as shown in the exhibit. What are the Precision and Recall rate of the model?

1. Precision = 262/277 Recall = 262/288
2. Precision =262/288 Recall = 262/277
3. Precision = 277/262 Recall = 288/262
4. Precision = 288/262 Recall = 277/262

Answer: A

QUESTION: 162

Which ROC curve represents a perfect model fit?

A) 65

Exhibit.

B)

Exhibit.

C)

Exhibit.

D)

Exhibit.

1. Exhibit A
2. Exhibit B
3. Exhibit C
4. Exhibit D

Answer: A

QUESTION: 163

Refer to the exhibit. Exhibit.

You have scored your Naive bayesian classifier model on a hold out test data for cross validation and determined the way the samples scored and tabulated them as shown in the exhibit. What are the the False Positive Rate (FPR) and the False Negative Rate (FNR) of the model?

A. FPR = 15/262 FNR = 26/288 B. FPR = 26/288 FNR = 15/262 C. FPR = 262/15

FNR = 288/26 68

D. FPR = 288/26 FNR = 262/15

Answer: A

QUESTION: 164

Refer to the exhibit. Exhibit.

Click on the calculator icon in the upper left corner. An analyst is searching a corpus of documents for the topic "solid state disk". In the Exhibit, Table A provides the inverse document frequency for each term across the corpus. Table B provides each term's frequency in four documents selected from corpus. Which of the four documents is most relevant to the analyst's search?

1. Document B
2. Document A
3. Document C
4. Document D

Answer: A

QUESTION: 165

Refer to the exhibit. Exhibit.

Click on the calculator icon in the upper left corner. You are going into a meeting where you know your manager will have a question on your dataset -- specifically relating to customers that are classified as renters with good credit status. In order to prepare for the meeting, you create a rule: RENTER => GOOD CREDIT. What is the confidence of the rule?

1. 63%
2. 41%
3. 18%
4. 73%

Answer: A

EMC E20-007 Exam (Data Science Associate) Detailed Information

E20-007 - Data Science Associate

---

EMC Education Services

Data Science Associate (EMCDSA)

Certification Description

Proven Professional Website

Proven Professional Community

Certification Overview

This certification enables the learner to immediately participate in big data and other analytics projects. The certification validates the practical foundation skills required by a Data Scientist.

Certification Requirements

To complete the requirements for this certification you must:

Pass the following Associate level exam:



E20-007 Data Science and Big Data Analytics Exam

This certification will qualify towards the Specialist level certification in the EMC Proven Professional Data Scientist (EMCDS) track including the following:

• EMC Data Scientist, Advanced Analytics Specialist

Note: These details reflect certification requirements as of 3/30/12.

The Proven Professional Program periodically updates certification requirements.

*Please check the Proven Professional CertTracker website regularly for the latest information and for other options to meet the Associate level requirement.

EMC Education Services

E20-007 Data Science and Big Data Analytics Exam

Exam Description

Duration

90 Minutes

(60 Questions)

Pass Score: 60

Practice Test

Associate Exam E20-007

Overview

This exam is a qualifying exam for the Data Science Associate (EMCDSA) certification.

This exam focuses on the practice of data analytics, the role of the Data Scientist, the main phases of the Data Analytics Lifecycle, analyzing and exploring data with R,

statistics for model building and evaluation, the theory and methods of advanced analytics and statistical modeling, the technology and tools that can be used for advanced analytics, operationalizing an analytics project, and data visualization techniques. Successful candidates will achieve the EMC Proven Professional – Data Science Associate credential.

EMC provides free practice tests to assess your knowledge in preparation for the exam. Practice tests allow you to become familiar with the topics and question types you will

find on the proctored exam. Your results on a practice test offer one indication of how prepared you are for the proctored exam and can highlight topics on which you need to study and train further. A passing score on the practice test does not guarantee a passing score on the certification exam.

Exam Topics

Topics likely to be covered on this exam include:

Big Data Analytics and the Data Scientist Role (7%)

• The characteristics of Big Data
• The practice of analytics
• The role and required skills of a Data Scientist
  Data Analytics Lifecycle (9%)
• Discovery
• Data preparation
• Model planning and building
• Communicating results
• Operationalizing a data analytics project
  Initial Analysis of the Data (15%)
• Using basic R commands to analyze data
• Using statistical measures and visualization to understand data
• The theory, process, and analysis of results to evaluate a model

Advanced Analytics for Big Data – Theory and Methods (40%) K-means clustering

EMC Corporation

Hopkinton Massachusetts 01748-9103



• Association rules
• Linear regression
• Logistic Regression
• Naïve Bayesian classifiers
• Decision trees
• Time Series Analysis
• Text Analytics
  Advanced Analytics for Big Data – Technology and Tools (20%)
  • MapReduce
  • Hadoop Ecosystem
  • SQL OLAP extensions, Windows functions, user defined functions, and aggregates
  • MADlib
    Operationalizing an Analytics Project and Data Visualization Techniques (9%)
  • Best practices for operationalizing an analytics project
  • Best practices for planning and creating effective data visualizations

The percentages after each topic above reflects the approximate distribution of the total question set across the exam.

Recommended Training

Course Title	Course Number	Mode	Available
Data Science and Big Data Analytics	MR-1CP-DSBDA	Instructor-Led	3/30/12
Data Science and Big Data Analytics – Video ILT	MR-1TP-DSBDA	Video ILT-Stream	3/30/12

The following curriculum is recommended for candidates preparing to take this exam. Please complete one of the following courses

The course material is supplemented by the textbook. Text book is optional

Course Title	Mode	Available
Data Science and Big Data Analytics: Discovering, Analyzing, Visualizing and Presenting Data Purchasing Options available at: http://www.wiley.com/WileyCDA/WileyTitle/productCd- 111887613X.html	Book	1/27/15

Note: These exam description details reflect contents as of March 30, 2012.

The Proven Professional Program periodically updates exams to reflect technical currency and relevance. Please check the Proven Professional website regularly for the latest information.

EMC2, EMC, EMC Proven, and the EMC logo are registered trademarks or trademarks of EMC Corporation in the United States and other countries. VMware is a registered trademark or trademark of VMware, Inc., in the United States and other jurisdictions. © Copyright 2015 EMC Corporation. All rights reserved. Published in the USA. 03/12 Exam Description

EMC believes the information in this document is accurate as of its publication date. The information is subject to change without notice.