EMC certification E20-007 exam test software

If you find any quality problems of our E20-007 or you do not pass the exam, we will unconditionally full refund. IT-Tests.com is professional site that providing EMC E20-007 questions and answers , it covers almost the E20-007 full knowledge points.

If you IT-Tests, IT-Tests.com can ensure you 100% pass EMC certification E20-007 exam. If you fail to pass the exam, IT-Tests.com will full refund to you.

EMC certification E20-007 exam has become a very popular test in the IT industry, but in order to pass the exam you need to spend a lot of time and effort to master relevant IT professional knowledge. In such a time is so precious society, time is money. IT-Tests.com provide a training scheme for EMC certification E20-007 exam, which only needs 20 hours to complete and can help you well consolidate the related IT professional knowledge to let you have a good preparation for your first time to participate in EMC certification E20-007 exam.

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: 2013-12-10

We are all ordinary human beings. Something what have learned not completely absorbed, so that wo often forget. When we need to use the knowledge we must learn again. When you see IT-Tests.com's EMC E20-007 exam training materials, you understand that this is you have to be purchased. It allows you to pass the exam effortlessly. You should believe IT-Tests.com will let you see your better future. Bright hard the hard as long as IT-Tests.com still, always find hope. No matter how bitter and more difficult, with IT-Tests.com you will still find the hope of light.

The E20-007 examination certification, as other world-renowned certification, will get international recognition and acceptance. People around the world prefer E20-007 exam certification to make their careers more strengthened and successful. In IT-Tests.com, you can choose the products which are suitable for your learning ability to learn.

What are you waiting for? Opportunity knocks but once. You can get EMC E20-007 complete as long as you enter IT-Tests.com website. You find the best E20-007 exam training materials, with our exam questions and answers, you will pass the exam.

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

NO.1 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 braindump   E20-007   E20-007 test answers

NO.2 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 practice test   E20-007   E20-007 study guide   E20-007

NO.3 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   E20-007 certification training   E20-007 questions   E20-007

NO.4 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 exam prep   E20-007 braindump   E20-007 certification training   E20-007

NO.5 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 exam dumps   E20-007   E20-007 questions

NO.6 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 certification training   E20-007   E20-007 exam simulations

NO.7 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 study guide   E20-007 exam   E20-007 dumps   E20-007

NO.8 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 pdf   E20-007 exam prep   E20-007 test answers   E20-007 braindump   E20-007 test answers   E20-007 study guide

NO.9 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 exam prep   E20-007 test   E20-007   E20-007   E20-007

NO.10 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 test   E20-007 exam simulations   E20-007   E20-007 practice test   E20-007

NO.11 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 exam prep   E20-007 pdf   E20-007

NO.12 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 exam   E20-007 dumps

NO.13 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 certification training   E20-007 braindump   E20-007

NO.14 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 test questions   E20-007 study guide   E20-007 certification training

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}
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 questions   E20-007   E20-007 answers real questions   E20-007 exam simulations

NO.16 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 exam simulations   E20-007   E20-007

NO.17 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 practice test   E20-007   E20-007 test questions   E20-007 exam dumps   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   E20-007 certification   E20-007 exam

NO.19 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   E20-007 exam prep   E20-007

NO.20 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 original questions   E20-007 study guide   E20-007   E20-007

IT-Tests.com offer the latest 70-463 Questions & Answers and high-quality BAS-004 PDF Practice Test. Our 74-325 VCE testing engine and LOT-441 study guide can help you pass the real exam. High-quality 000-456 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