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DASCA SDS Exam Braindumps - in .pdf Free Demo

  • Exam Code: SDS
  • Exam Name: Senior Data Scientist
  • Last Updated: Aug 02, 2026
  • Q & A: 87 Questions and Answers
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  • Exam Code: SDS
  • Exam Name: Senior Data Scientist
  • Last Updated: Aug 02, 2026
  • Q & A: 87 Questions and Answers
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DASCA SDS Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Advanced Statistical Modeling20-25%- Statistical Inference
  • 1. Hypothesis Testing
  • 2. Confidence Intervals
  • 3. Bayesian Methods
- Regression Analysis
  • 1. Regularization Techniques
  • 2. Linear and Logistic Regression
  • 3. Generalized Linear Models
Topic 2: Machine Learning at Scale25-30%- Deep Learning Fundamentals
  • 1. Neural Networks
  • 2. Recurrent Networks
  • 3. Convolutional Networks
- Unsupervised Learning
  • 1. Dimensionality Reduction
  • 2. Anomaly Detection
  • 3. Clustering Algorithms
- Supervised Learning
  • 1. Support Vector Machines
  • 2. Time Series Forecasting
  • 3. Ensemble Methods
Topic 3: Data Visualization and Communication10-15%- Visualization Principles
  • 1. Storytelling with Data
  • 2. Dashboard Design
- Tools and Technologies
  • 1. Python Visualization Libraries
  • 2. Tableau/Power BI
Topic 4: Foundations of Data Science15-20%- Data Science Lifecycle
  • 1. Deployment and Monitoring
  • 2. Problem Formulation
  • 3. Data Collection and Preparation
  • 4. Model Building and Evaluation
- Data Science Ethics
  • 1. Bias and Fairness
  • 2. Privacy and Confidentiality
  • 3. Transparency and Explainability
Topic 5: Big Data Engineering15-20%- Distributed Computing
  • 1. Data Pipelines
  • 2. Hadoop Ecosystem
  • 3. Apache Spark
- Cloud Computing for Data Science
  • 1. Containerization
  • 2. Serverless Architectures
  • 3. AWS/Azure/GCP Services

DASCA Senior Data Scientist Sample Questions:

1. Data wrangling is the process of getting the data from:

A) Both A and B
B) Its modified meaning format into something suitable for more conventional analytics
C) Its raw format into something suitable for more conventional analytics
D) None of the above


2. In regression, the principle of machine learning is used to optimize the parameters to:

A) Both A and B
B) Calculate the closest possible outcomes
C) Minimize the approximation error
D) None of the above


3. Which of the following is NOT a valid section of Big Data Strategy document?

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


4. ElementTree sub-library gives us direct access to:

A) Copy tree of the XML
B) Delete tree of the XML
C) Parse tree of the XML
D) None of the above
E) Insert tree of the XML


5. Which of the following is correct about customer lifetime value (CLTV)?
i. Most organizations determine the current customer lifetime value (CLTV) based on historic sales over past
12 to 18 months
ii. The goal of the CLTV score is to help marketing and store personnel to determine the "value" of a customer

A) Only i
B) Only ii
C) Both i and ii


Solutions:

Question # 1
Answer: C
Question # 2
Answer: A
Question # 3
Answer: B
Question # 4
Answer: C
Question # 5
Answer: C

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