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Exam Code:D-DS-FN-23
Exam Name:Dell Data Science Foundations
Certification Provider:EMC
Free Question Number:141
Version:v2025-02-06
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Exam Question List
Question 1: What is one modeling or descriptive statistical function in ...
Question 2: In which lifecycle stage are initial hypotheses formed?...
Question 3: In addition to less data movement and the ability to use lar...
Question 4: To ensure a successful analytic project, which key role can ...
Question 5: Which word or phrase completes the statement; "Adata scienti...
Question 6: Based on the exhibit, what is a likely issue with the data? ...
Question 7: Refer to the exhibit. (Exhibit) You have scored your Naive b...
Question 8: Adisk drive manufacturer has a defect rate of less than 1.5%...
Question 9: Which process in text analysis can be used to reduce dimensi...
Question 10: In a Logistic Regression, the coefficient for "age" equals -...
Question 11: In a Student's t-test, what is the meaning of the p-value?...
Question 12: What is holdout data?
Question 13: Refer to the exhibit. (Exhibit) In the exhibit, a correlogra...
Question 14: You are assigned the task of creating customer profiles for ...
Question 15: In time series analysis, what function is examined to identi...
Question 16: What is the output of the K-means clustering algorithm?...
Question 17: An IT department deployed a spam filter to reduce the amount...
Question 18: Which characteristic applies mainly to Data Science as oppos...
Question 19: Which clause is required by all window functions?...
Question 20: When is a Wilcoxon Rank-Sum test used?...
Question 21: In linear regression, what indicates that an estimated coeff...
Question 22: There are three criterions for big data analytics projects w...
Question 23: Which word or phrase completes the statement; "The intersect...
Question 24: Consider these itemsets: (hat, scarf, coat) (hat, scarf, coa...
Question 25: Based on the exhibit, the table shows the values for the inp...
Question 26: On analyzing the results of a K-means clustering output, you...
Question 27: In text analysis, what makes the corpus representation dynam...
Question 28: What is a good use case for logistic regression?...
Question 29: Assume that you have a data frame in R. Which function would...
Question 30: Which word or phrase completes the statement? Structured dat...
Question 31: You have been assigned to do a study of the daily revenue ef...
Question 32: Refer to the exhibit. (Exhibit) Click on the calculator icon...
Question 33: In a t-test with unknown variance, what values are used to c...
Question 34: You are provided with a dataset with the following attribute...
Question 35: What is a distinct property of Logistic Regression compared ...
Question 36: A study was run to identify general dietary patterns among t...
Question 37: Which activity is performed in the Operationalize phase of t...
Question 38: Before building an ARMA model, how can you determine if the ...
Question 39: After which phase of the data analytics lifecycle should you...
Question 40: What is the output format from the Map function of MapReduce...
Question 41: You are analyzing data in order to build a classifier model....
Question 42: You are using a Logistic Regression model to determine if an...
Question 43: A call center for a large electronics company handles an ave...
Question 44: How are window functions different from regular aggregate fu...
Question 45: You have numeric data for more than 500 observations. You ar...
Question 46: In which lifecycle stage are test and training data sets cre...
Question 47: What type of data is represented in the exhibit? (Exhibit)...
Question 48: If distributed Item-based Collaborative Filtering is an algo...
Question 49: Refer to the exhibit. (Exhibit) You have run a linear regres...
Question 50: A time series of monthly sales indicates a periodic pattern,...
Question 51: Which word or phrase completes the statement? Mahout is to H...
Question 52: In data visualization, which type of chart is recommended to...
Question 53: In data visualization, what is used to focus the audience on...
Question 54: What is the purpose of the process step "parsing" in text an...
Question 55: While having a discussion with your colleague, this person m...
Question 56: You have been assigned to run a linear regression model for ...
Question 57: Refer to the exhibit. (Exhibit) In the exhibit, a correlogra...
Question 58: Since R factors are categorical variables, they are most clo...
Question 59: Refer to the exhibit. (Exhibit) Which type of data issue wou...
Question 60: In a fitted ARIMA(1,2,3) model, how many differences are app...
Question 61: Consider these itemsets: (hat, scarf, coat) (hat, scarf, coa...
Question 62: Refer to the exhibit. (Exhibit) You are asked to write a rep...
Question 63: Which word or phrase completes the statement? Data-ink ratio...
Question 64: Refer to the exhibit. (Exhibit) In the exhibit, the x-axis r...
Question 65: You have been assigned to run a logistic regression model fo...
Question 66: An analyst is searching a corpus of documents for the topic ...
Question 67: You submit a Map Reduce job to a Hadoop cluster. However, yo...
Question 68: Consider the following SQL statement: SELECT employee_id, ye...
Question 69: When would you prefer a Naive Bayes model to a logistic regr...
Question 70: What are the characteristics of Big Data?...
Question 71: The Marketing department of your company wishes to track opi...
Question 72: What are two data categories that represent quantitative dat...
Question 73: Your colleague, who is new to Hadoop, approaches you with a ...
Question 74: What provides the means for matching and manipulating text s...
Question 75: You have plotted the distribution of savings account sizes f...
Question 76: Which activity is performed in the Operationalize phase of t...
Question 77: Refer to the Exhibit. (Exhibit) You are going into a meeting...
Question 78: What describes the data repository represented by the 'A' in...
Question 79: What is required in a presentation for project sponsors?...
Question 80: Which assumption makes the Naïve Bayesian classifier differe...
Question 81: How does Pig's use of a schema differ from that of a traditi...
Question 82: How does an HBase data structure differ from an ANSI standar...
Question 83: Refer to the exhibit. (Exhibit) What provides the decision t...
Question 84: Which Hadoop service is responsible for requesting resources...
Question 85: Refer to the exhibit. (Exhibit) The graph represents an ROC ...
Question 86: Refer to the exhibit. (Exhibit) The exhibit shows four graph...
Question 87: What is a consideration when building decision trees?...
Question 88: You are provided with the following list. Which window funct...
Question 89: Refer to the graphic. (Exhibit) How would you run the MADlib...
Question 90: During a study to understand the population growth of a cert...
Question 91: Which visualization technique should be avoided?...
Question 92: In which phase of the data analytics lifecycle do Data Scien...
Question 93: What describes a true property of Logistic Regression method...
Question 94: On analyzing your time series data you suspect that the data...
Question 95: Assume you are performing an analysis to determine fraud det...
Question 96: A data scientist is asked to implement an article recommenda...
Question 97: Refer to the exhibit. (Exhibit) You are building a decision ...
Question 98: A business colleague who is new to Hadoop approaches you wit...
Question 99: Which function shown in the exhibit is used to calculate the...
Question 100: You are using the Apriori algorithm to determine the likelih...
Question 101: A data scientist is given an R data frame (i.e., empdata) wi...
Question 102: What requests resources from YARN during a MapReduce job?...
Question 103: You are analyzing a time series and want to determine its st...
Question 104: What does a leaf node represent in a decision tree?...
Question 105: Refer to the exhibit. (Exhibit) You have plotted the distrib...
Question 106: In a user-defined aggregate function, what is SFUNC?...
Question 107: Which data asset is an example of semi-structured data?...
Question 108: Refer to the exhibit. (Exhibit) You have scored your Naive b...
Question 109: Consider the following text: "Aren't you glad that there are...
Question 110: What is the difference between the array and list data struc...
Question 111: What is the primary bottleneck in text classification?...
Question 112: You have two tables of customers in your database. Customers...
Question 113: A data scientist is preparing a presentation for a meeting w...
Question 114: Which word or phrase completes the statement? Theater actor ...
Question 115: Refer to the exhibit. (Exhibit) What is the approximate R-sq...
Question 116: In addition to quantitative and technical skills, what is a ...
Question 117: What tasks need to be completed when designing an analytic s...
Question 118: Which data asset is an example of unstructured data?...
Question 119: Which two analytical methods can be used for dealing with ca...
Question 120: You have created a Linear Regression model to predict total ...
Question 121: In time series analysis, what is an indication of a stationa...
Question 122: Consider the following SQL query: SELECT product_id FROM sup...
Question 123: What is the optimal usage scenario for the Hadoop Distribute...
Question 124: You have completed your model and are handing it off to be d...
Question 125: Which analytical method is considered unsupervised?...
Question 126: What is an appropriate data visualization to use in a presen...
Question 127: Which statement about linear regression is correct?...
Question 128: A fair six-sided die is rolled. Let A denote the event that ...
Question 129: You are asked to create a model to predict the total number ...
Question 130: Which chart type is the most effective way to show trends ov...
Question 131: What is LOESS used for?
Question 132: Which word or phrase completes the statement; "Excessive emp...
Question 133: You received 100,000 home loan records and want to quickly d...
Question 134: You are having a discussion with a business colleague. The c...
Question 135: Which word or phrase completes the statement? Business Intel...
Question 136: Your customer provided you with 2, 000 unlabeled records and...
Question 137: When creating a project sponsor presentation, what is the ma...
Question 138: In the Map Reduce framework, what is the purpose of the Map ...
Question 139: You have created a scatter plot using R from household incom...
Question 140: Under which circumstance do you need to implement N-fold cro...
Question 141: Consider a database with 4 transactions: Transaction 1: {che...