EMC E20-007 Actual Free Exam Questions & Community Discussion
You are analyzing data in order to build a classifier model. You discover non-linear data and discontinuities that will affect the model. Which analytical method would you recommend?
Correct Answer: D
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Refer to the exhibit Consider the training data set shown in the exhibit. What are the classification (Y = 0 or 1) and the probability of the classification for the tuple
X(1, 0, 0)
using Naive Bayesian classifier?
X(1, 0, 0)
using Naive Bayesian classifier?
Correct Answer: B
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What is the format of the output from the Map function of MapReduce?
Correct Answer: D
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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 previously worked extensively with SQL and databases.
Which query interface would you recommend?
Which query interface would you recommend?
Correct Answer: C
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You are using MADlib for Linear Regression analysis. Which value does the statement return?
SELECT (linregr(depvar, indepvar)).r2 FROM zeta1;
SELECT (linregr(depvar, indepvar)).r2 FROM zeta1;
Correct Answer: C
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A disk drive manufacturer has a defect rate of less than 1.0% with 98% confidence. A quality assurance team samples 1000 disk drives and finds 14 defective units. Which action should the team recommend?
Correct Answer: A
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Refer to the exhibit.
What provides the decision tree for predicting whether or not someone is a good or bad credit risk. What would be the assigned probability, p(good), of a single male with no known savings?
What provides the decision tree for predicting whether or not someone is a good or bad credit risk. What would be the assigned probability, p(good), of a single male with no known savings?
Correct Answer: B
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You have been assigned to do a study of the daily revenue effect of a pricing model of online transactions. When have you completed the analytics lifecycle?
Correct Answer: B
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In linear regression, what indicates that an estimated coefficient is significantly different than zero?
Correct Answer: A
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Which data type value is used for the observed response variable in a logistic regression model?
Correct Answer: A
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Which word or phrase completes the statement? A data warehouse is to a centralized database for reporting as an analytic sandbox is to a _______?
Correct Answer: A
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