Question: Which of the following best describes \'shadow deployment\'?

Options:

1. Deploying a model alongside the current model without affecting users
2. Completely replacing the old model with a new one
3. Deploying a model only during off-peak hours
4. Using a model for training while another is in production

Correct Answer: Deploying a model alongside the current model without affecting users

Solution:

Shadow deployment involves deploying a new model alongside the current model without affecting users, allowing for performance comparison without risk.