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D-DS-FN-23 Mock Exam, Valid D-DS-FN-23 Test Registration
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EMC D-DS-FN-23 Exam Syllabus Topics:| Topic | Details | | Topic 1 | - Big Data, Analytics, and the Data Scientist Role: This section of the exam measures the skills of a Data Science Enthusiast and covers the basic concepts of Big Data, including its defining characteristics and the business drivers behind its rise. It also introduces the role of the Data Scientist, highlighting the critical skills needed in the data science field.
| | Topic 2 | - Advanced Analytics - Theory, Application, and Interpretation of Results for Eight Methods: This section of the exam measures the skills of an Entry-Level Data Analyst and covers foundational knowledge in various advanced analytics methods. Topics include the theory, application, and interpretation of K-means clustering, association rules, linear and logistic regression, naïve Bayesian classifiers, decision trees, time series analysis, and text analytics.
| | Topic 3 | - Initial Analysis of the Data: This section of the exam measures the skills of a Data Science Enthusiast and focuses on the first steps in analyzing data. It explains how basic R commands are used for exploration, discusses important statistical measures and visualizations, and describes hypothesis testing techniques for evaluating models.
| | Topic 4 | - Data Analytics Lifecycle: This section of the exam measures the skills of an Entry-Level Data Analyst and explains the purpose and phases of the data analytics lifecycle. It includes understanding key activities and roles involved in the discovery, data preparation, model planning, and model building phases to successfully manage analytics projects.
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EMC Dell Data Science Foundations Sample Questions (Q290-Q295):NEW QUESTION # 290
After which phase of the data analytics lifecycle should you determine if the model is robust enough?
- A. Operationalize
- B. Discovery
- C. Data preparation
- D. Model building
Answer: D
NEW QUESTION # 291
Which chart type is intended to display time series data?
- A. Pie chart
- B. [Histogram
- C. Bar chart
- D. Line chart
Answer: D
Explanation:
A line chart is specifically designed to display time series data. It shows data points in a sequential order, making it easy to observe trends over time.
NEW QUESTION # 292
While having a discussion with your colleague, this person mentions that they want to perform K-means clustering on text file data stored in HDFS.
Which tool would you recommend to this colleague?
- A. Sqoop
- B. HBase
- C. Scribe
- D. Mahout
Answer: D
NEW QUESTION # 293
Which relationship holds for a confusion matrix?
- A. Precision = 1 - False Positive Ratio
- B. Precision = 1 - False Negative Ratio
- C. Recall = 1 - False Negative Ratio
- D. Recall = 1 - False Positive Ratio
Answer: C
NEW QUESTION # 294
Refer to the Exhibit.

You are going into a meeting where you anticipate your manager will have a question on your dataset.
Specifically, your manager will want to know about customers that are classified as renters with a good credit status.
In order to prepare for the meeting, you create a rule: RENTER => GOOD CREDIT.
What is the confidence of this rule?
Answer: B
NEW QUESTION # 295
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