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D-DS-FN-23 PDF, D-DS-FN-23 Reliable Exam Cost

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EMC D-DS-FN-23 Exam Syllabus Topics:

Topic
Details

Topic 1

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 2

Operationalizing an Analytics Project and Data Visualization Techniques: This section of the exam measures the skills of an Entry-Level Data Analyst and explains best practices for communicating findings and operationalizing analytics projects. It covers effective methods for presenting projects to various audiences and emphasizes the importance of planning and creating impactful data visualizations.

Topic 3

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.

Topic 4

Advanced Analytics for Big Data - Technology and Tools: This section of the exam measures the skills of a Data Science Enthusiast and addresses the technological challenges associated with Big Data. It introduces tools and technologies such as MapReduce, Hadoop, the Hadoop ecosystem, in-database analytics, SQL essentials, and advanced SQL techniques like window functions and MADlib.

EMC Dell Data Science Foundations Sample Questions (Q316-Q321):

NEW QUESTION # 316
You are attempting to find the Euclidean distance between two centroids:
Centroid A's coordinates: (X = 2, Y = 4)
Centroid B's coordinates (X = 8, Y = 10)
Which formula finds the correct Euclidean distance?

A. ((2-8)2+(4-10)2) or 72
B. SQRT(((2-8) x 2) + ((4-10) x 2)) or 12.17
C. SQRT((2-8)2+(4-10)2) or 8.49
D. ((2-8) x 2 + (4-10) x 2) or 148

Answer: C

NEW QUESTION # 317
Refer to the exhibit.

After analyzing a dataset, you report findings to your team:
1. Variables A and C are significantly and positively impacting the dependent variable.
2. Variable B is significantly and negatively impacting the dependent variable.
3. Variable D is not significantly impacting the dependent variable.
After seeing your findings, the majority of your team agreed that variable B should be positively impacting the dependent variable.
What is a possible reason the coefficient for variable B was negative and not positive?

A. Variable B is interacting with another variable due to correlated inputs
B. The information gain from variable B is already provided by another variable
C. Variable B needs a logarithmic transformation due to its relationship to the dependent variable
D. Variable B needs a quadratic transformation due to its relationship to the dependent variable

Answer: A

NEW QUESTION # 318
Refer to the exhibit.

The exhibit shows four graphs labeled as Fig A thorough Fig D.
Which figure represents the entropy function relative to a Boolean classification and is represented by the formula shown in Exhibit?

A. Fig-B
B. Fig-A
C. Fig-D
D. Fig-C

Answer: B

NEW QUESTION # 319
What provides the means for matching and manipulating text strings in SQL?

A. PACF
B. Association rules
C. TF-IDF
D. Regular expressions

Answer: D

NEW QUESTION # 320
What type of variable is the dependent variable from a logistic regression?

A. Ratio
B. Continuous
C. Interval
D. Categorical

Answer: D

Explanation:
The dependent variable in logistic regression is categorical, typically binary (e.g., success/failure, yes/no), since the goal is to model the probability of an event occurring.

NEW QUESTION # 321
......

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