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Exam Code:	DEA-7TT2
Exam Name:	Associate - Data Science and Big Data Analytics v2 Exam
Certification Provider:	EMC
Free Question Number:	115
Version:	v2025-08-19
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# of Questions views:	1700
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Exam Question List: Question 1: In the Map Reduce framework, what is the purpose of the Map ...; Question 2: Data visualization is used in the final presentation of an a...; Question 3: You are using the Apriori algorithm to determine the likelih...; Question 4: Imagine you are trying to hire a Data Scientist for your tea...; Question 5: Before you build an ARMA model, how can you tell if your tim...; Question 6: Refer to the Exhibit. (Exhibit) In the Exhibit, the table sh...; Question 7: What is LOESS used for? Response:...; Question 8: Refer to the exhibit. (Exhibit) You have run a linear regres...; Question 9: In which lifecycle stage are appropriate analytical techniqu...; Question 10: Refer to the exhibit. (Exhibit) To predict whether or not a ...; Question 11: What is an appropriate data visualization to use in a presen...; Question 12: You fit a Logistic Regression model to your training data an...; Question 13: Data has been collected on visitors' viewing habits at a ban...; Question 14: In which phase of the data analytics lifecycle do Data Scien...; Question 15: What describes a true limitation of a Logistic Regression me...; Question 16: Which word or phrase completes the statement? Structured dat...; Question 17: Which chart type is intended to display correlations between...; Question 18: You have been assigned to perform a study of the daily reven...; Question 19: You have been assigned to perform a study of the daily reven...; Question 20: A data scientist plans to classify the sentiment polarity of...; Question 21: Which key role for a successful analytic project can consult...; Question 22: Which data asset is an example of unstructured data? Respons...; Question 23: What is the optimal usage scenario for the Hadoop Distribute...; Question 24: Which data asset is an example of semi-structured data? Resp...; Question 25: Consider a database with 4 transactions: Transaction 1: {che...; Question 26: Consider the following itemsets: (hat, scarf, coat) (hat, sc...; Question 27: What is Hadoop? Response:; Question 28: You have fit a decision tree classifier using 12 input varia...; Question 29: What is an appropriate data visualization to use in a presen...; Question 30: In linear regression modeling, which action can be taken to ...; Question 31: While having a discussion with your colleague, this person m...; Question 32: A data scientist is investigating a new database column that...; Question 33: You are analyzing data in order to build a classifier model....; Question 34: (Exhibit) You have created a Logistic Regression model to pr...; Question 35: In which phase of the analytic lifecycle would you expect to...; Question 36: You have been assigned to do a study of the daily revenue ef...; Question 37: What is a property of window functions in SQL commands? Resp...; Question 38: Which data asset is an example of quasi-structured data? Res...; Question 39: You are performing a market basket analysis using the Aprior...; Question 40: Consider the following SQL query: SELECT product_id FROM sup...; Question 41: What provides an extensive library of algorithm building too...; Question 42: What does R code nv <- v[v < 1000] do? Response:...; Question 43: You have completed your model and are handing it off to be d...; Question 44: Which SQL OLAP extension provides all possible grouping comb...; Question 45: How is dimensionality defined in a "bag of words" document r...; Question 46: When is a Wilcoxon Rank-Sum test used? Response:...; Question 47: In time series analysis, what function is examined to identi...; Question 48: What is the format of the output from the Map function of Ma...; Question 49: You submit a MapReduce job to a Hadoop cluster. Although the...; Question 50: If your intention is to show trends over time, which chart t...; Question 51: You are analyzing a time series and want to determine its st...; Question 52: You are provided four different datasets. Initial analysis o...; Question 53: The R vector "v" contains 16 elements. Which R command modif...; Question 54: Review the following code: SELECT pn, vn, sum(prc*qty) FROM ...; Question 55: Refer to the Exhibit. (Exhibit) You are going into a meeting...; Question 56: Why do the Naive Bayesian classifier implementations use the...; Question 57: Which activity is performed in the Operationalize phase of t...; Question 58: Refer to the exhibit. (Exhibit) You have scored your Naive b...; Question 59: What is a consideration when building decision trees? Respon...; Question 60: A call center for a large electronics company handles an ave...; Question 61: Consider the following SQL statement: SELECT employee_id, ye...; Question 62: If distributed Item-based Collaborative Filtering is an algo...; Question 63: When would you prefer a Naive Bayes model to a logistic regr...; Question 64: Refer to the exhibit. (Exhibit) You are asked to write a rep...; Question 65: You have just completed the Discovery phase of a project and...; Question 66: If R factors are categorical variables, which data classific...; Question 67: Refer to the exhibit. (Exhibit) You have plotted the distrib...; Question 68: What describes the data repository represented by the 'A' in...; Question 69: In a Logistic Regression, the coefficient for "age" equals -...; Question 70: When would you use a Wilcoxson Rank Sum test? Response:...; Question 71: What are the characteristics of Big Data? Response:...; Question 72: Which of the following is an example of quasi-structured dat...; Question 73: An analyst is searching a corpus of documents for the topic ...; Question 74: You need to run a hypothesis test across three normally dist...; Question 75: A study was run to identify general dietary patterns among t...; Question 76: (Exhibit) Based on the graphic, what should be done to begin...; Question 77: Which relationship holds for a confusion matrix? Response:...; Question 78: For which class of problem is Map Reduce most suitable? Resp...; Question 79: What is a key consideration when preparing a presentation in...; Question 80: (Exhibit) A data scientist is preparing a presentation for a...; Question 81: A data scientist wants to predict the probability of death f...; Question 82: Which Hadoop service is responsible for requesting resources...; Question 83: When creating a project sponsor presentation, what is the ma...; Question 84: Refer to the exhibit. (Exhibit) You are using k-means cluste...; Question 85: Which word or phrase completes the statement? Business Intel...; Question 86: What should be subtracted to remove a simple linear trend fr...; Question 87: The average purchase size from your online sales site is $17...; Question 88: You are using k-means clustering to classify heart patients ...; Question 89: There are three criterions for big data analytics projects w...; Question 90: Refer to the exhibit. (Exhibit) Which type of data issue wou...; Question 91: You are provided with the following list. Which window funct...; Question 92: Consider a database with 4 transactions: Transaction 1: {che...; Question 93: (Exhibit) The graph represents the plot of WSS as a function...; Question 94: What are challenges presented by Big Data? Response:...; Question 95: After which phase of the data analytics lifecycle should you...; Question 96: Since R factors are categorical variables, they are most clo...; Question 97: Refer to the exhibit. (Exhibit) What provides the decision t...; Question 98: A fair six-sided die is rolled. Let A denote the event that ...; Question 99: How is HDFS defined? Response:; Question 100: A Data Scientist is assigned to build a model from a reporti...; Question 101: In addition to quantitative and technical skills, what is a ...; Question 102: In a decision tree, what is an example of a pure node? Respo...; Question 103: What describes a true property of Logistic Regression method...; Question 104: You have been assigned to perform a study of the daily reven...; Question 105: What is the output format from the Map function of MapReduce...; Question 106: A data scientist is asked to implement an article recommenda...; Question 107: What is the difference between the array and list data struc...; Question 108: What is the output of the K-means clustering algorithm? Resp...; Question 109: Which component of a final presentation focuses on how to de...; Question 110: Refer to the Exhibit. (Exhibit) In the Exhibit. For effectiv...; Question 111: During a study to understand the population growth of a cert...; Question 112: Refer to the exhibit, which shows pairwise counts for items ...; Question 113: What tasks need to be completed when designing an analytic s...; Question 114: Which SQL OLAP grouping extension is used to provide hierarc...; Question 115: Refer to the exhibit. (Exhibit) What is the approximate R-sq...

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