Design Use Cases CERTIFIED-DATA-SCIENCE-PRACTITIONER Practice Questions (Page 6)

Questions 26–28

1. 26foundation · easy

   A company wants to compare a new recommendation algorithm against the current one in a live production environment with real users. Which testing method is most suitable?

   • ACross-validation
   • BA/B testing
   • CAdversarial testing
   • DHoldout validation
   Reveal Solution Discussion Select an answer first
2. 27application · medium

   A government agency is developing a model to screen job applicants. They must ensure the model does not discriminate based on gender or ethnicity. Which testing objective is most critical?

   • AHigh interpretability for stakeholders
   • BHigh overall accuracy
   • CFairness across protected groups
   • DLow latency for real-time screening
   Reveal Solution Discussion Select an answer first
3. 28expert · hard

   A credit card company is developing a model to detect fraudulent transactions. They need to minimize financial losses from fraud while avoiding customer inconvenience from declined legitimate transactions. Which testing objective best captures this dual goal?

   • AMaximize the true negative rate
   • BMaximize the F1 score for the fraud class
   • CMaximize the false positive rate
   • DMaximize the area under the ROC curve (AUC)
   Reveal Solution Discussion Select an answer first