IBM Watson Data Scientist v1 : C1000-154

C1000-154 real exams

Exam Code: C1000-154

Exam Name: IBM Watson Data Scientist v1

Updated: Sep 09, 2026

Q & A: 82 Questions and Answers

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About IBM Watson Data Scientist v1 : C1000-154

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IBM C1000-154 Exam Syllabus Topics:

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

IBM Watson Data Scientist v1 Sample Questions:

Question 1

Which hyperparameter is NOT commonly adjusted in a deep learning model?

A. Activation function
B. Learning rate
C. Number of layers
D. The color of the model's output


Question 2

F1-score is particularly useful when:

A. The data is completely balanced.
B. The dataset size is extremely large.
C. Only the model's accuracy matters.
D. You need a balance between precision and recall.


Question 3

A model's performance is not solely dependent on its accuracy but also on:

A. Metrics like precision, recall, and F1 score
B. The choice of programming language
C. The number of features selected
D. The color of the visualization charts


Question 4

In the context of assessing data quality in Watson Knowledge Catalog (WKC) and Cloud Pak for Data (CPD), what is a primary focus?

A. Increasing the volume of data collected
B. Focusing on the data's color scheme
C. Analyzing completeness, consistency, and accuracy of data
D. Enhancing the graphical user interface


Question 5

Given the Confusion matrix below, which is the formula for specificity?

A. (TP + TN)/(FN + FP + TN + TP)
B. TP/(FN + TP)
C. TN/(TN + FP)
D. TP/(FP + TP)


Solutions:

Question 1
Answer: D
Question 2
Answer: D
Question 3
Answer: A
Question 4
Answer: C
Question 5
Answer: C

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