DASCA SDS Actual Free Exam Questions & Community Discussion

Exam Code/Number: SDS
Exam Name/Title: Senior Data Scientist
Certification Provider: DASCA
Corresponding Certification: DASCA Data Scientist

Exam Questions: 87
Updated On: Sep 08, 2026

Question #1

Business Intelligence (BI) is:

A. BI focuses on "What happened?"

B. BI focuses on reporting on the future state of the business

C. BI focuses on descriptive analytics

D. Both A and B

E. Both B and C

Discussion 0

Correct Answer: D Vote an answer

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Question #2

Which of the following is NOT a process of Use Case?

A. Identify your key business stakeholders

B. Capture the decisions that the key business stakeholders need to make in order to support the organization's key business initiatives

C. Brainstorm the outcomes that the key stakeholders need to answer to facilitate making the decisions

D. Understand your organization's key business initiatives or business challenge

E. Brainstorm the questions that the key stakeholders need to answer to facilitate making the decisions

Discussion 0

Correct Answer: C Vote an answer

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Question #3

What is TRUE for "rehashing"?

A. Key/value pairs from the original table can be inserted into the new, larger one

B. It requires a new hash function, which maps values into a larger range of integers

C. All of the above

D. Allocate a new, larger hash table in memory

E. Both A and B

Discussion 0

Correct Answer: C Vote an answer

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Question #4

Which classification steps are performed in inductive techniques?
i. Training Step
ii. Test Step
iii. Validation Step
iv. Application Step

A. i, ii

B. i, ii, iii, iv

C. i, ii, iv

D. ii, iii

Discussion 0

Correct Answer: B Vote an answer

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Question #5

Which of the following is correct?
i. LaTeX is used to publish work in a scientific journal
ii. LaTeX is a markup language that can be compiled into formatted documents iii. LaTeX is for publishing scientific papers

A. i, ii

B. i, ii, iii

C. ii, iii

D. i, iii

Discussion 0

Correct Answer: B Vote an answer

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Question #6

The Big Data Vision Workshop process is ideal for organizations who:

A. All of the above

B. Have a desire to leverage Big Data to transform their business but do not know where and how to start

C. Both A and B

D. Have a desire to leverage the Big Data Vision Workshop to identify where and how to leverage data and analytics to power their business models

E. Have a wealth of data that they do not know how to monetize

Discussion 0

Correct Answer: A Vote an answer

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Question #7

Which of the following is the most important part of Hadoop?

A. Spark Framework

B. Hadoop Distributed File System (HDFS)

C. Both A and B

D. Both B and C

E. MapReduce Framework

Discussion 0

Correct Answer: C Vote an answer

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Question #8

Maximum Likelihood Estimation (MLE) is a way to frame:

A. Small class of problems in Data Science

B. Both A and C

C. Large class of problems in HDFS

D. Small class of problems in HDFS

E. Large class of problems in Data Science

Discussion 0

Correct Answer: E Vote an answer

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Question #9

Which of the following is an example of NLP?

A. Flagging e-mails as spam

B. All of the above

C. Both A and C

D. Using Twitter to assess public sentiment

E. Finding which text documents are about similar topics

Discussion 0

Correct Answer: B Vote an answer

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