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Exam Code:	E20-007
Exam Name:	Data Science and Big Data Analytics
Certification Provider:	EMC
Free Question Number:	165
Version:	v2018-04-02
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Exam Question List: Question 1: Consider a database with 4 transactions: Transaction 1: {che...; Question 2: In the MapReduce framework, what is the purpose of the Reduc...; Question 3: In linear regression, what indicates that an estimated coeff...; Question 4: In addition to less data movement and the ability to use lar...; Question 5: The Marketing department of your company wishes to track opi...; Question 6: Which analytical method is considered unsupervised?...; Question 7: What does the R code z <- f[1:10, ] do?...; Question 8: Which characteristic applies only to Business Intelligence a...; Question 9: Refer to the exhibit. (Exhibit) The graph represents an ROC ...; Question 10: Which process in text analysis can be used to reduce dimensi...; Question 11: What is required in a presentation for project sponsors?...; Question 12: How does Pig's use of a schema differ from that of a traditi...; Question 13: Refer to the exhibit. (Exhibit) You are using k-means cluste...; Question 14: Refer to the exhibit (Exhibit) Consider the training data se...; Question 15: Your company has 3 different sales teams. Each team's sales ...; Question 16: In which phase of the data analytics lifecycle do Data Scien...; Question 17: You are using the Apriori algorithm to determine the likelih...; Question 18: In linear regression modeling, which action can be taken to ...; Question 19: A data scientist plans to classify the sentiment polarity of...; Question 20: Refer to the exhibit. (Exhibit) Click on the calculator icon...; Question 21: You submit a MapReduce job to a Hadoop cluster and notice th...; Question 22: Trend, seasonal, and cyclical are components of a time serie...; Question 23: Refer to the exhibit. (Exhibit) Click on the calculator icon...; Question 24: You are using MADlib for Linear Regression analysis. Which v...; Question 25: In R, functions like plot() and hist() are known as what?...; Question 26: Which word or phrase completes the statement? Business Intel...; Question 27: Which word or phrase completes the statement? A data warehou...; Question 28: Which activity might be performed in the Operationalize phas...; Question 29: How are window functions different from regular aggregate fu...; Question 30: In which lifecycle stage are appropriate analytical techniqu...; Question 31: In data visualization, what is used to focus the audience on...; Question 32: Which word or phrase completes the statement? A Data Scienti...; Question 33: Which key role for a successful analytic project can provide...; Question 34: A disk drive manufacturer has a defect rate of less than 1.5...; Question 35: The average purchase size from your online sales site is $17...; Question 36: What is Hadoop?; Question 37: What is one modeling or descriptive statistical function in ...; Question 38: Refer to the exhibit. (Exhibit) You are using K-means cluste...; Question 39: Refer to the Exhibit. (Exhibit) In the Exhibit, the table sh...; Question 40: The web analytics team uses Hadoop to process access logs. T...; Question 41: Refer to the exhibit. (Exhibit) You have run a linear regres...; Question 42: Which word or phrase completes the statement? Data-ink ratio...; Question 43: Refer to the exhibit. (Exhibit) You are building a decision ...; Question 44: You are attempting to find the Euclidean distance between tw...; Question 45: What is a core deliverable at the end of the analytic projec...; Question 46: What would be considered "Big Data"?...; Question 47: You have fit a decision tree classifier using 12 input varia...; Question 48: You are using k-means clustering to classify heart patients ...; Question 49: You are provided four different datasets. Initial analysis o...; Question 50: Consider the example of an analysis for fraud detection on c...; Question 51: Consider a database with 4 transactions: Transaction 1: {che...; Question 52: Refer to the exhibit. (Exhibit) You have created a density p...; Question 53: You have been assigned to do a study of the daily revenue ef...; Question 54: What is the primary bottleneck in text classification?...; Question 55: What are the characteristics of Big Data?...; Question 56: You are analyzing data in order to build a classifier model....; Question 57: What is an example of a null hypothesis?...; Question 58: Refer to exhibit. (Exhibit) You are asked to write a report ...; Question 59: Which method is used to solve for coefficients b0, b1, .., b...; Question 60: Refer to the Exhibit. (Exhibit) You are working on creating ...; Question 61: When would you use a Wilcoxson Rank Sum test?...; Question 62: Which R data structure allows elements to have different dat...; Question 63: Which graphical representation shows the distribution and mu...; Question 64: Refer to the exhibit. (Exhibit) The exhibit shows four graph...; Question 65: Imagine you are trying to hire a Data Scientist for your tea...; Question 66: Refer to the exhibit (Exhibit) Consider the training data se...; Question 67: You have two tables of customers in your database. Customers...; Question 68: Refer to the exhibit. (Exhibit) You have scored your Naive b...; Question 69: Which word or phrase completes the statement? Business Intel...; Question 70: What is a property of window functions in SQL commands?...; Question 71: Refer to the Exhibit. (Exhibit) In the Exhibit, the table sh...; Question 72: You have completed your model and are handing it off to be d...; Question 73: Which functionality do regular expressions provide?...; Question 74: Which word or phrase completes the statement? Mahout is to H...; Question 75: You have been assigned to run a linear regression model for ...; Question 76: Refer to the exhibit. (Exhibit) After analyzing a dataset, y...; Question 77: On analyzing your time series data you suspect that the data...; Question 78: Which characteristic applies mainly to Data Science as oppos...; Question 79: What describes a true property of Logistic Regression method...; Question 80: Consider these itemsets: (hat, scarf, coat) (hat, scarf, coa...; Question 81: Consider these itemsets: (hat, scarf, coat) (hat, scarf, coa...; Question 82: Your colleague, who is new to Hadoop, approaches you with a ...; Question 83: Which data asset is an example of semi-structured data?...; Question 84: Refer to the exhibit. (Exhibit) You ran a linear regression,...; Question 85: You have used k-means clustering to classify behavior of 100...; Question 86: In MADlib what does MAD stand for?...; Question 87: Refer to the exhibit. (Exhibit) What provides the decision t...; Question 88: When creating a project sponsor presentation, what is the ma...; Question 89: Which word or phrase completes the statement? Unix is to bas...; Question 90: In data visualization, which type of chart is recommended to...; Question 91: Which word or phrase completes the statement? Emphasis color...; Question 92: Consider a scale that has five (5) values that range from "n...; Question 93: In a Student's t-test, what is the meaning of the p-value?...; Question 94: Which ROC curve represents a perfect model fit? A: (Exhibit)...; Question 95: What is LOESS used for?; Question 96: You have been assigned to do a study of the daily revenue ef...; Question 97: Your colleague, who is new to Hadoop, approaches you with a ...; Question 98: A data scientist is given an R data frame, "empdata", with t...; Question 99: For which class of problem is MapReduce most suitable?...; Question 100: Assume that you have a data frame in R Which function would ...; Question 101: In the MapReduce framework, what is the purpose of the Map F...; Question 102: Refer to the exhibit. (Exhibit) In the exhibit, a correlogra...; Question 103: You are given 10, 000, 000 user profile pages of an online d...; Question 104: The web analytics team uses Hadoop to process access logs. T...; Question 105: You have been assigned to do a study of the daily revenue ef...; Question 106: A disk drive manufacturer has a defect rate of less than 1.0...; Question 107: What is required in a presentation for business analysts?...; Question 108: You are studying the behavior of a population, and you are p...; Question 109: Refer to the exhibit. (Exhibit) Which type of data issue wou...; Question 110: What does R code nv <- v[v < 1000] do?...; Question 111: A Data Scientist is assigned to build a model from a reporti...; Question 112: You are analyzing a time series and want to determine its st...; Question 113: You are performing a market basket analysis using the Aprior...; Question 114: Before you build an ARMA model, how can you tell if your tim...; Question 115: If your intention is to show trends over time, which chart t...; Question 116: What is the purpose of the process step "parsing" in text an...; Question 117: Which word or phrase completes the statement? 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Theater actor ...; Question 130: What describes a true limitation of Logistic Regression meth...; Question 131: Which type of numeric value does a logistic regression model...; Question 132: You are building a logistic regression model to predict whet...; Question 133: In which lifecycle stage are initial hypotheses formed?...; Question 134: Refer to the exhibit. (Exhibit) You have plotted the distrib...; Question 135: Refer to the exhibit. (Exhibit) You are asked to write a rep...; Question 136: You are asked to create a model to predict the total number ...; Question 137: Refer to the exhibit. (Exhibit) You are assigned to do an en...; Question 138: Refer to the exhibit. (Exhibit) Click on the calculator icon...; Question 139: Refer to the exhibit. (Exhibit) In the exhibit, a correlogra...; Question 140: Data visualization is used in the final presentation of an a...; Question 141: What is the mandatory Clause that must be included when usin...; Question 142: Refer to the exhibit. (Exhibit) In the exhibit, the x-axis r...; Question 143: You are testing two new weight-gain formulas for puppies. Th...; Question 144: A data scientist is asked to implement an article recommenda...; Question 145: Which data type value is used for the observed response vari...; Question 146: What describes the use of UNION clause in a SQL statement?...; Question 147: Refer to the Exhibit. (Exhibit) In the Exhibit. For effectiv...; Question 148: A call center for a large electronics company handles an ave...; Question 149: What is an appropriate data visualization to use in a presen...; Question 150: Which key role for a successful analytic project can consult...; Question 151: When creating a presentation for a technical audience, what ...; Question 152: Which data asset is an example of quasi-structured data?...; Question 153: Refer to the exhibit. 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