Download IBM : C1000-154 Questions & Answers as PDF & Test Software
Updated: Jun 06, 2026
No. of Questions: 82 Questions & Answers with Testing Engine
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IBM Watson Data Scientist v1 Sample Questions:
1. Which of the following is true about the AUC measure in the context of classification models?
A) It is less useful when the classes are highly imbalanced.
B) It represents the degree of separability between classes.
C) It indicates the number of false positives.
D) It measures the model's accuracy using a single threshold.
2. What is a critical consideration when selecting the right model class for a given problem?
A) The model's ability to produce results quickly, regardless of accuracy.
B) The theoretical complexity of the model, with more complex models always being preferred.
C) The nature of the problem (e.g., classification, regression) and the characteristics of the data.
D) The availability of high-performance computing resources.
3. In the case of imbalanced data, what technique is recommended to ensure that the train and test sets have similar distributions of the target variable?
A) Using only the majority class for splitting
B) Splitting based on the order of data collection
C) Stratified split
D) Random split without considering the target variable
4. When managing data with Cloud Pak for Data Services, what is a common task?
A) Reading data from and writing data to Watson Studio
B) Using the same data management approach for all types of data, regardless of size or format
C) Avoiding the automation of data processing tasks
D) Ignoring data security and compliance requirements
5. In the context of model selection, explainability refers to:
A) How colorful and visually appealing the model's output is.
B) The ease with which humans can understand how the model makes decisions.
C) The complexity of the algorithm used to build the model.
D) The model's ability to operate without any data.
Solutions:
| Question # 1 Answer: B | Question # 2 Answer: C | Question # 3 Answer: C | Question # 4 Answer: A | Question # 5 Answer: B |
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