EMC E20-007 exam study materials

The quality of IT-Tests.com product is very good and also have the fastest update rate. If you purchase the training materials we provide, you can pass EMC certification E20-007 exam successfully.

With the arrival of the flood of the information age of the 21st century, people are constantly improve their knowledge to adapt to the times. But this is still not enough. In the IT industry, EMC's E20-007 exam certification is the essential certification of the IT industry. Because this exam is difficult, through it, you may be subject to international recognition and acceptance, and you will have a bright future and holding high pay attention. IT-Tests.com has the world's most reliable IT certification training materials, and with it you can achieve your wonderful plans. We guarantee you 100% certified. Candidates who participate in the EMC E20-007 certification exam, what are you still hesitant？Just do it quickly!

Exam Code: E20-007
Exam Name: EMC (Data Science and Big Data Analytics)
Free One year updates to match real exam scenarios, 100% pass and refund Warranty.
Total Q&A: 165 Questions and Answers
Last Update: 2013-11-04

EMC certification E20-007 exam is the first step for the IT employees to set foot on the road to improve their job. Passing EMC certification E20-007 exam is the stepping stone towards your career peak. IT-Tests.com can help you pass EMC certification E20-007 exam successfully.

IT-Tests.com is a website to achieve dreams of many IT people. IT-Tests.com provide candidates participating in the IT certification exams the information they want to help them pass the exam. Do you still worry about passing EMC certification E20-007 exam? Have you thought about purchasing an EMC certification E20-007 exam counseling sessions to assist you? IT-Tests.com can provide you with this convenience. IT-Tests's training materials can help you pass the certification exam. IT-Tests's exercises are almost similar to real exams. With IT-Tests's accurate EMC certification E20-007 exam practice questions and answers, you can pass EMC certification E20-007 exam with a high score.

If you are looking for a good learning site that can help you to pass the EMC E20-007 exam, IT-Tests.com is the best choice. IT-Tests.com will bring you state-of-the-art skills in the IT industry as well as easily pass the EMC E20-007 exam. We all know that this exam is tough, but it is not impossible if you want to pass it. You can choose learning tools to pass the exam. I suggest you choose IT-Tests.com EMC E20-007 exam questions and answers. I suggest you choose IT-Tests.com EMC E20-007 exam questions and answers. The training not only complete but real wide coverage. The test questions have high degree of simulation. This is the result of many exam practice. . If you want to participate in the EMC E20-007 exam, then select the IT-Tests.com, this is absolutely right choice.

IT-Tests.com senior experts have developed exercises and answers about EMC certification E20-007 exam with their knowledge and experience, which have 95% similarity with the real exam. I believe that you will be very confident of our products. If you choose to use IT-Tests's products, IT-Tests.com can help you 100% pass your first time to attend EMC certification E20-007 exam. If you fail the exam, we will give a full refund to you.

E20-007 (Data Science and Big Data Analytics) Free Demo Download: http://www.it-tests.com/E20-007.html

NO.1 Which data asset is an example of quasi-structured data.?
A. Webserver log
B. XML data file
C. Database table
D. News article
Answer: A

EMC   E20-007 demo   E20-007   E20-007 study guide

NO.2 In which lifecycle stage are test and training data sets created?
A. Model building
B. Model planning
C. Discovery
D. Data preparation
Answer: A

EMC exam prep   E20-007 braindump   E20-007   E20-007

NO.3 In R, functions like plot() and hist() are known as what?
A. generic functions
B. virtual methods
C. virtual functions
D. generic methods
Answer: B

EMC   E20-007   E20-007 certification training   E20-007   E20-007 demo   E20-007

NO.4 In data visualization, what is used to focus the audience on a key part of a chart?
A. Emphasis colors
B. Detailed text
C. Pastel colors
D. A data table
Answer: A

EMC braindump   E20-007   E20-007 braindump   E20-007 braindump   E20-007

NO.5 What does the R code
z <- f[1:10, ]
do?
A. Assigns the first 10 rows of f to the vector z
B. Assigns the 1st 10 columns of the 1st row of f to z
C. Assigns a sequence of values from 1 to 10 to z
D. Assigns the 1st 10 columns to z
Answer: A

EMC   E20-007   E20-007   E20-007

NO.6 The web analytics team uses Hadoop to process access logs. They now want to correlate this data
with structured user data residing in a production single-instance JDBC database. They collaborate with
the production team to import the data into Hadoop. Which tool should they use?
A. Sqoop
B. Pig
C. Chukwa
D. Scribe
Answer: A

EMC   E20-007 answers real questions   E20-007 certification   E20-007 study guide

NO.7 What would be considered "Big Data"?
A. An OLAP Cube containing customer demographic information about 100,000,000 customers
B. Daily Log files from a web server that receives 100,000 hits per minute
C. Aggregated statistical data stored in a relational database table
D. Spreadsheets containing monthly sales data for a Global 100 corporation
Answer: B

EMC   E20-007 braindump   E20-007   E20-007   E20-007

NO.8 When creating a presentation for a technical audience, what is the main objective?
A. Show that you met the project goals
B. Show how you met the project goals
C. Show if the model will meet the SLA
D. Show the technique to be used in the production environment
Answer: B

EMC   E20-007   E20-007

NO.9 Your company has 3 different sales teams. Each team's sales manager has developed incentive offers
to increase the size of each sales transaction. Any sales manager whose incentive program can be
shown to increase the size of the average sales transaction will receive a bonus.
Data are available for the number and average sale amount for transactions offering one of the incentives
as well as transactions offering no incentive.
The VP of Sales has asked you to determine analytically if any of the incentive programs has resulted in a
demonstrable increase in the average sale amount. Which analytical technique would be appropriate in
this situation?
A. One-way ANOVA
B. Multi-way ANOVA
C. Student's t-test
D. Wilcoxson Rank Sum Test
Answer: A

EMC   E20-007 braindump   E20-007   E20-007 practice test

NO.10 What is an appropriate data visualization to use in a presentation for an analyst audience?
A. Pie chart
B. Area chart
C. Stacked bar chart
D. ROC curve
Answer: D

EMC pdf   E20-007   E20-007 demo   E20-007

NO.11 You are using MADlib for Linear Regression analysis. Which value does the statement return?
SELECT (linregr(depvar, indepvar)).r2 FROM zeta1;
A. Goodness of fit
B. Coefficients
C. Standard error
D. P-value
Answer: A

EMC demo   E20-007 braindump   E20-007   E20-007   E20-007 study guide   E20-007 study guide

NO.12 Which word or phrase completes the statement? Data-ink ratio is to data visualization as __________ .
A. Confusion matrix is to classifier
B. Data scientist is to big data
C. Seasonality is to ARIMA
D. K-means is to Naive Bayes
Answer: A

EMC   E20-007   E20-007 questions   E20-007 test questions

NO.13 Which type of numeric value does a logistic regression model estimate?
A. Probability
B. A p-value
C. Any integer
D. Any real number
Answer: A

EMC questions   E20-007   E20-007 dumps   E20-007 certification

NO.14 When would you use GROUP BY ROLLUP clause in your OLAP query?
A. where all subtotals and grand totals are to be included in the output
B. where only the subtotals are to be included in the output
C. where only the grand totals are to be included in the output
D. where only specific subtotals and grand totals for a combination of variables are to be included in the
output
Answer: A

EMC   E20-007   E20-007

NO.15 Consider a database with 4 transactions:
Transaction 1: {cheese, bread, milk}
Transaction 2: {soda, bread, milk}
Transaction 3: {cheese, bread}
Transaction 4: {cheese, soda, juice}
The minimum support is 25%. Which rule has a confidence equal to 50%?
A. {bread,milk} => {cheese}
B. {bread} => {milk}
C. {juice} => {soda}
D. {bread} => {cheese}
Answer: D

EMC   E20-007   E20-007 exam prep   E20-007 certification   E20-007 original questions   E20-007 test answers

NO.16 You are using the Apriori algorithm to determine the likelihood that a person who owns a home has a
good credit score. You have determined that the confidence for the rules used in the algorithm is > 75%.
You calculate lift = 1.011 for the rule, "People with good credit are homeowners". What can you determine
from the lift calculation?
A. Support for the association is low
B. Leverage of the rules is low
C. The rule is coincidental
D. The rule is true
Answer: C

EMC   E20-007 study guide   E20-007 dumps   E20-007   E20-007 pdf   E20-007 study guide

NO.17 Under which circumstance do you need to implement N-fold cross-validation after creating a
regression model?
A. There is not enough data to create a test set.
B. The data is unformatted.
C. There are missing values in the data.
D. There are categorical variables in the model.
Answer: A

EMC   E20-007 braindump   E20-007   E20-007

NO.18 A data scientist plans to classify the sentiment polarity of 10, 000 product reviews collected from the
Internet. What is the most appropriate model to use? Suppose labeled training data is available.
A. Na ve Bayesian classifier
B. Linear regression
C. Logistic regression
D. K-means clustering
Answer: A

EMC exam simulations   E20-007   E20-007   E20-007

NO.19 Your colleague, who is new to Hadoop, approaches you with a question. They want to know how best
to access their data. This colleague has a strong background in data flow languages and programming.
Which query interface would you recommend?
A. Pig
B. Hive
C. Howl
D. HBase
Answer: A

EMC test   E20-007   E20-007 demo   E20-007 study guide   E20-007 dumps

NO.20 Consider a database with 4 transactions:
Transaction 1: {cheese, bread, milk}
Transaction 2: {soda, bread, milk}
Transaction 3: {cheese, bread}
Transaction 4: {cheese, soda, juice}
You decide to run the association rules algorithm where minimum support is 50%. Which rule has a
confidence at least 50%?
A. {cheese} => {bread}
B. {juice} => {cheese}
C. {milk} => {soda}
D. {soda} => {milk}
Answer: A

EMC   E20-007 study guide   E20-007 exam prep   E20-007 braindump   E20-007

IT-Tests.com offer the latest 1z0-559 Questions & Answers and high-quality 000-318 PDF Practice Test. Our 000-224 VCE testing engine and 642-385 study guide can help you pass the real exam. High-quality Real Exam Questions can 100% guarantee you pass the exam faster and easier. Pass the exam to obtain certification is so simple.

Article Link: http://www.it-tests.com/E20-007.html