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DASCA SDS Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Data Visualization and Communication | 10-15% | - Tools and Technologies
|
| Big Data Engineering | 15-20% | - Cloud Computing for Data Science
|
| Foundations of Data Science | 15-20% | - Data Science Lifecycle
|
| Advanced Statistical Modeling | 20-25% | - Regression Analysis
|
| Machine Learning at Scale | 25-30% | - Unsupervised Learning
|
DASCA Senior Data Scientist Sample Questions:
Which of the following standardizes scores similar to a percentile rank but preserves equal interval properties of a Z-score?
- A. None of the above
- B. Medium Curve Equivalent (MCE)
- C. Normal Curve Equivalent (NCE)
- D. High Curve Equivalent (HCE)
- E. Trend analysis
Correct Answer: C 🗳️
Explanation: Only visible for PassLeader members. You can sign-up / login (it's free).
Example of amortized performance is:
- A. Hadoop dictionaries
- B. HDFS dictionaries
- C. Python dictionaries
- D. MapReduce dictionaries
- E. All of the above
Correct Answer: C 🗳️
Explanation: Only visible for PassLeader members. You can sign-up / login (it's free).
Which of the following is TRUE for data lake?
- A. The data lake enables organizations to gather, manage, enrich, and analyze many new sources of data, whether structured or unstructured
- B. The data lake can make both of the Business Intelligence and Data Science environments less agile and more productive
- C. None of the above
- D. The data lake can make both of the Business Intelligence and Data Science environments more agile and more productive
- E. The data lake enables organizations to treat data as an organizational asset to be gathered and nurtured versus a cost to be minimized
Correct Answer: A,D,E 🗳️
Explanation: Only visible for PassLeader members. You can sign-up / login (it's free).
Which of the following is TRUE for Business Metamorphosis?
- A. Both A and C
- B. The Business Metamorphosis phase is where organizations integrate the insights that they captured about their customers' usage patterns, product performance behaviors, and overall market trends to transform their business models
- C. The Business Metamorphosis phase helps drive an organization's core business model through the analytic insights gathered as the organization traverses the Big Data Business Model Maturity Index
- D. Business Metamorphosis exercise can uncover Big Data requirements around decisions, analytics and data sources that can be leveraged to transform or metamorphose your organization's business model
- E. All of the above
Correct Answer: E 🗳️
Explanation: Only visible for PassLeader members. You can sign-up / login (it's free).
Which of the following is a useful feature of functional programming?
- A. Higher-Order Functions (HOFs)
- B. Lazy Evaluation
- C. Immutable Data
- D. All of the above
Correct Answer: D 🗳️
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