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DS-200 Exam Questions & Answers

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DS-200 Exam Questions & Answers

Vendor: Cloudera

Certifications: CCDH

Exam Code: DS-200

Exam Name: Data Science Essentials

Updated: Apr 22, 2025

Q&As: 60

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DS-200 Online Practice Questions and Answers

Questions 1

There are 20 patients with acute lymphoblastic leukemia (ALL) and 32 patients with acute myeloid leukemia (AML), both variants of a blood cancer.

The makeup of the groups as follows:

Each individual has an expression value for each of 10000 different genes. The expression value for each

gene is a continuous value between -1 and 1.

With which type of plot can you encode the most amount of the data visually?

Rather than use all 10,000 features to separate AML from ALL, you pick a small subnet of features to

separate them optimally. You feature vectors have 10,000 dimensions while you only have 52 data points. You use cross-validation to test your chosen set of features. What three methods will choose the features in an optimal way?

A. Singular value Decomposition

B. Bootstrapping

C. Markov chain Monte Carlo

D. Hidden Markov

E. Bayesian Information Criterion

F. Mutual Information

Show Answer
Questions 2

You are about to sample a 100-dimensinal unit-cube. To adequately sample any single given dimension, you need only capture 10 points. How many points do you need to order to sample the complete 100dimensional unit cube adequately?

A. 10010

B. 1010

C. Log2(100)

D. 100

E. 1000

F. 1010

Show Answer
Questions 3

You've built a model that has ten different variables with complicated independence relationships between them, and both continuous and discrete variables that have complicated, multi-parameter distributions. Computing the joint probability distribution is complex, but it turns out that computing the conditional probabilities for the variables is easy. What is the most computationally efficient for computing the expected value?

A. Method of moments

B. Markov Chain Monte Carlo

C. Gibbs sampling

D. Numerical quadrature

Show Answer More Questions

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