IBM C1000-154 : IBM Watson Data Scientist v1

Exam Code: C1000-154

Exam Name: IBM Watson Data Scientist v1

Updated: Oct 07, 2026

Q & A: 82 Questions and Answers

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IBM C1000-154 Exam Syllabus Topics:

SectionObjectives
Data Visualization and Communication- Communicating insights to stakeholders
- Visualization techniques
Data Science Fundamentals- Data science lifecycle
- Types of data and data sources
Machine Learning Methods- Unsupervised learning
- Supervised learning
- Model evaluation and validation
Data Preparation and Analysis- Data cleaning and preprocessing
- Exploratory data analysis
- Feature engineering basics
IBM Watson Tools and Platform- IBM Watson Studio usage
- Model development and deployment

IBM Watson Data Scientist v1 Sample Questions:

Question #1

In the deployment phase, why is it important to know the different data sources available in Cloud Pak for Data?

  • A. Because only one type of data source can be used in any deployment
  • B. To limit the deployment to only use local file storage
  • C. To effectively integrate and manage data from various sources for analysis and model training
  • D. To ensure that all data sources are manually processed
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #2

The first step in performing exploratory data analysis (EDA) typically involves:

  • A. Connecting to as many data sources as possible
  • B. Choosing a color palette for data visualization
  • C. Determining the hypothesis for the analysis
  • D. Selecting a random sample of data to analyze
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #3

Which of the following is true about the AUC measure in the context of classification models?

  • A. It indicates the number of false positives.
  • B. It represents the degree of separability between classes.
  • C. It is less useful when the classes are highly imbalanced.
  • D. It measures the model's accuracy using a single threshold.
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

Question #4

Which analytic technique is NOT typically used to address business requirements?

  • A. Decision trees
  • B. Clustering
  • C. Regression analysis
  • D. Proofreading
Reveal Solution  Discussion  0

Correct Answer: D  🗳️

Question #5

When implementing cross-validation, which of the following is NOT a common approach?

  • A. K-Fold Cross-Validation
  • B. Using the entire dataset as both the training and the test set in each iteration
  • C. Stratified K-Fold Cross-Validation for imbalanced datasets
  • D. Leave-One-Out Cross-Validation (LOOCV)
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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