EMC E20-007 for the latest training materials

IT-Tests.com's EMC E20-007 exam training materials' simulation is particularly high. You can encounter the same questions in the real real exam. This only shows that the ability of our IT elite team is really high. Now many ambitious IT staff to make their own configuration files compatible with the market demand, to realize their ideals through these hot IT exam certification. Achieved excellent results in the EMC E20-007 exam. With the EMC E20-007 exam training of IT-Tests.com, the door of the dream will open for you.

Each IT person is working hard for promotion and salary increases. It is also a reflection of the pressure of modern society. We should use the strength to prove ourselves. Participate in the EMC E20-007 exam please. In fact, this examination is not so difficult as what you are thinking. You only need to select the appropriate training materials. IT-Tests.com's EMC E20-007 exam training materials is the best training materials. Select the materials is to choose what you want. In order to enhance your own, do it quickly.

Exam Code: E20-007
Exam Name: EMC Data Science and Big Data Analytics E20-007
Free One year updates to match real exam scenarios, 100% pass and refund Warranty.
Updated: 2013-09-01

Fantasy can make people to come up with many good ideas, but it can not do anything. So when you thinking how to pass the EMC E20-007 exam, It's better open your computer, and click the website of IT-Tests.com, then you will see the things you want. IT-Tests.com's products have favorable prices, and have quality assurance, but also to ensure you to 100% pass the exam.

In order to pass the EMC E20-007 exam, selecting the appropriate training tools is very necessary. And the study materials of EMC E20-007 exam is a very important part. IT-Tests.com can provide valid materials to pass the EMC E20-007 exam. The IT experts in IT-Tests.com are all have strength aned experience. Their research materials are very similar with the real exam questions . IT-Tests.com is a site that provide the exam materials to the people who want to take the exam. and we can help the candidates to pass the exam effectively.

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.

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

NO.1 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 test   E20-007   E20-007   E20-007 dumps   E20-007

NO.2 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 dumps   E20-007   E20-007 test answers   E20-007 test answers

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

NO.4 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 questions   E20-007 original questions   E20-007 answers real questions

NO.5 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 simulations   E20-007 exam   E20-007 braindump   E20-007   E20-007 test   E20-007

NO.6 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   E20-007 questions   E20-007   E20-007

NO.7 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 dumps   E20-007 pdf   E20-007 questions   E20-007   E20-007 original questions

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

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

NO.10 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 answers real questions   E20-007   E20-007   E20-007   E20-007

NO.11 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   E20-007   E20-007 exam simulations

NO.12 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   E20-007 exam dumps   E20-007

NO.13 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 dumps   E20-007   E20-007   E20-007 exam prep   E20-007

NO.14 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   E20-007   E20-007 exam dumps

NO.15 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 exam prep   E20-007   E20-007 exam prep

NO.16 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 test   E20-007   E20-007 pdf

NO.17 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 exam dumps   E20-007   E20-007

NO.18 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 exam dumps   E20-007 exam   E20-007   E20-007   E20-007 certification training

NO.19 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 practice test   E20-007   E20-007 answers real questions

NO.20 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 exam simulations   E20-007 certification

If you're still studying hard to pass the EMC E20-007 exam, IT-Tests.com help you to achieve your dream. We provide you with the best EMC E20-007 exam materials. It passed the test of practice, and with the best quality. It is better than EMC E20-007 tutorials and any other related materials. It can help you to pass the EMC E20-007 exam, and help you to become a strong IT expert.