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Senior Data Scientist Exam Practice Questions & SDS Free Download Pdf & Senior Data Scientist Valid Training Material

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DASCA Senior Data Scientist Sample Questions (Q68-Q73):

NEW QUESTION # 68
Which of the following is NOT a valid section of Big Data Strategy document?

A. Key business initiatives
B. Key business entities
C. Business strategy
D. Key decisions
E. Business decisions

Answer: E

Explanation:
A Big Data Strategy document provides a framework for aligning data initiatives with organizational objectives. It typically includes:
Business strategy (Option A): Ensures that big data initiatives align with overall corporate strategy.
Key decisions (Option B): Identifies the decisions data will help optimize or automate.
Key business initiatives (Option D): Links big data projects with critical organizational initiatives.
Key business entities (Option E): Defines the core entities (customers, products, channels) around which data will be organized.
However:
Business decisions (Option C): This is redundant and not a standard section; "key decisions" covers this aspect already.
Thus, the correct answer is Option C (Business decisions).
Reference:
DASCA Data Scientist Knowledge Framework (DSKF) - Big Data Strategy and Business Alignment.

NEW QUESTION # 69
Which of the following is the common evolutionary algorithm of neural networks?

A. Genetic programming
B. All of the above
C. Evolution strategy
D. Genetic algorithm

Answer: B

Explanation:
Evolutionary algorithms are optimization techniques inspired by natural selection. They are often applied in neural network optimization for evolving architectures, weights, or hyperparameters.
Genetic Algorithm (Option A): Uses selection, crossover, and mutation to evolve neural network parameters.
Genetic Programming (Option B): Evolves computer programs or expressions; can be applied to evolve neural network structures.
Evolution Strategy (Option C): Focuses on optimization using mutation and adaptation of parameters.
Since all are used as evolutionary approaches in neural networks, the correct answer is Option D (All of the above).
Reference:
DASCA Data Scientist Knowledge Framework (DSKF) - Neural Networks: Evolutionary Algorithms in Machine Learning.

NEW QUESTION # 70
Which of the following is a trend analysis component of time series decomposition?

A. Cyclical
B. Both A and B
C. All of the above
D. Irregular
E. Seasonal

Answer: C

Explanation:
Time series decomposition breaks down data into components to better understand underlying patterns and support forecasting. The main components are:
Trend: Long-term progression (upward or downward).
Seasonal: Repeating short-term patterns (e.g., monthly or quarterly).
Cyclical (Option A): Medium- to long-term cycles (e.g., business cycles).
Irregular/Residual (Option C): Random, unpredictable variations.
Since trend analysis involves examining cyclical, seasonal, and irregular components, the correct answer is Option E (All of the above).
Reference:
DASCA Data Scientist Knowledge Framework (DSKF) - Analytics: Time Series Decomposition and Trend Analysis.

NEW QUESTION # 71
Which of the following is correct about microservices?

A. All of the above
B. Each service can be developed in any language that best fits the requirement
C. Each service is a new project
D. Each service is independent

Answer: A

Explanation:
Microservices architecture is a software design approach where applications are developed as a collection of small, loosely coupled, and independently deployable services.
Option A: Correct. Each microservice runs independently and has its own lifecycle, allowing scalability and modularity.
Option B: Correct. Each service can be treated as an independent project with its own repository, build pipeline, and deployment.
Option C: Correct. Microservices can be developed in different programming languages or frameworks, chosen based on the best fit for each specific requirement.
Therefore, the correct answer is Option D (All of the above).
Reference:
DASCA Data Scientist Knowledge Framework (DSKF) - Data Management & Engineering: Microservices in Data Ecosystems.

NEW QUESTION # 72
Business Intelligence (BI) is:

A. BI focuses on reporting on the future state of the business
B. Both A and B
C. Both B and C
D. BI focuses on descriptive analytics
E. BI focuses on "What happened?"

Answer: B

Explanation:
Business Intelligence (BI) is primarily focused on descriptive analytics and reporting - understanding historical and current business performance.
Option A (Descriptive analytics): Correct. BI uses dashboards, reports, and OLAP tools to summarize what has occurred in the past.
Option B ("What happened?"): Correct. BI answers retrospective questions by analyzing transactional and operational data.
Option C (Future state): Incorrect. Predicting future business outcomes falls under predictive analytics or advanced analytics, not BI.
Thus, the correct answer is Option D (Both A and B).
Reference:
DASCA Data Scientist Knowledge Framework (DSKF) - Data Visualization & BI: Descriptive Analytics and Reporting.

NEW QUESTION # 73
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SDS Valid Exam Online | Reliable SDS Test Topics

Senior Data Scientist Exam Practice Questions & SDS Free Download Pdf & Senior Data Scientist Valid Training Material

DASCA Senior Data Scientist Sample Questions (Q68-Q73):

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