ITCertKing EMC E20-007 exam practice questions and answers

ITCertKing's EMC E20-007 exam training materials provide the two most popular download formats. One is PDF, and other is software, it is easy to download. The IT professionals and industrious experts in ITCertKing make full use of their knowledge and experience to provide the best products for the candidates. We can help you to achieve your goals.

ITCertKing is a website specifically provide the certification exam information sources for IT professionals. Through many reflects from people who have purchase ITCertKing's products, ITCertKing is proved to be the best website to provide the source of information about certification exam. The product of ITCertKing is a very reliable training tool for you. The answers of the exam exercises provided by ITCertKing is very accurate. Our ITCertKing's senior experts are continuing to enhance the quality of our training materials.

Exam Code: E20-007
Exam Name: EMC (Data Science and Big Data Analytics)
One year free update, No help, Full refund!
Total Q&A: 165 Questions and Answers
Last Update: 2013-12-23

What do you think of EMC E20-007 certification exam? As one of the most popular EMC certification exams, E20-007 test is also very important. When you are looking for reference materials in order to better prepare for the exam, you will find it is very hard to get the excellent exam dumps. What should we do? It doesn't matter. ITCertKing is well aware of your aspirations and provide you with the best certification training dumps to satisfy your demands.

ITCertKing has been devoted itself to provide all candidates who are preparing for IT certification exam with the best and the most trusted reference materials in years. With regards to the questions of IT certification test, ITCertKing has a wealth of experience. ITCertKing has helped numerous candidates and got their reliance and praise. So, don't doubt the quality of ITCertKing EMC E20-007 dumps. It is high quality dumps helping you 100% pass E20-007 certification test. ITCertKing promises 100% FULL REFUND, if you fail the exam. With this guarantee, you don't need to hesitate whether to buy the dumps or not. Missing it is your losses.

If you are looking for a good learning site that can help you to pass the EMC E20-007 exam, ITCertKing is the best choice. ITCertKing 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 ITCertKing EMC E20-007 exam questions and answers. I suggest you choose ITCertKing 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 ITCertKing, this is absolutely right choice.

ITCertKing website is fully equipped with resources and the questions of EMC E20-007 exam, it also includes the EMC E20-007 exam practice test. Which can help candidates prepare for the exam and pass the exam. You can download the part of the trial exam questions and answers as a try. ITCertKing provide true and comprehensive exam questions and answers. With our exclusive online EMC E20-007 exam training materials, you'll easily through EMC E20-007 exam. Our site ensure 100% pass rate.

E20-007 Free Demo Download: http://www.itcertking.com/E20-007_exam.html

NO.1 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 exam   E20-007   E20-007 exam prep   E20-007 pdf   E20-007 braindump

NO.2 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 test   E20-007 exam prep   E20-007   E20-007 exam prep

NO.3 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 dumps   E20-007 questions   E20-007   E20-007

NO.4 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 test   E20-007 demo   E20-007 practice test   E20-007

NO.5 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   E20-007 braindump   E20-007 braindump   E20-007

NO.6 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 certification   E20-007   E20-007   E20-007 certification

NO.7 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 questions   E20-007 demo

NO.8 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 study guide   E20-007   E20-007

NO.9 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 study guide   E20-007   E20-007

NO.10 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 practice test   E20-007 pdf   E20-007   E20-007 practice test   E20-007 pdf   E20-007

NO.11 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 demo   E20-007   E20-007

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   E20-007 exam prep   E20-007 exam prep

NO.13 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 test answers   E20-007 test   E20-007   E20-007

NO.14 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 questions   E20-007   E20-007   E20-007   E20-007 answers real questions

NO.15 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.16 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 original questions   E20-007

NO.17 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 test questions   E20-007 test questions   E20-007   E20-007 exam prep

NO.18 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 exam dumps   E20-007 braindump   E20-007

NO.19 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 pdf   E20-007   E20-007

NO.20 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 exam dumps   E20-007 exam prep   E20-007 exam   E20-007 demo   E20-007

ITCertKing offer the latest 648-385 exam material and high-quality 1Z0-478 pdf questions & answers. Our VCP-510 VCE testing engine and CAT-221 study guide can help you pass the real exam. High-quality 1Z0-597 dumps training materials can 100% guarantee you pass the exam faster and easier. Pass the exam to obtain certification is so simple.

Article Link: http://www.itcertking.com/E20-007_exam.html