AI and ML Fundamentals CLOUD-DIGITAL-LEADER Practice Questions (Page 6)

Questions 26–27

1. 26foundation · easy

   How can machine learning create business value from unstructured data?

   • ABy storing unstructured data in a relational database for easier querying.
   • BBy using ML to extract insights from text, images, and audio that are difficult to analyze manually.
   • CBy applying fixed business rules to unstructured data to generate reports.
   • DBy converting all unstructured data into structured data before any analysis.
   Reveal Solution Discussion Select an answer first
2. 27expert · hard

   A bank is building an ML model to detect fraudulent transactions. The dataset is highly imbalanced: only 0.1% of transactions are fraudulent. The model achieves 99.9% accuracy but fails to catch most fraud. What is the most likely reason for this?

   • AThe model is not being retrained frequently enough.
   • BThe model is not using enough features.
   • CThe model is overfitting the training data.
   • DThe model is biased toward the majority class because the data is imbalanced.
   Reveal Solution Discussion Select an answer first