Exam CAS-004 topic 1 question 301 discussion

This directly supports the CISO's goal of implementing tokenization with a one-to-many mapping of sensitive data, ensuring each token is temporary and reduces the impact of token exposure.

Single-use translation: In tokenization, single-use translation refers to the practice of creating a unique token for each instance of a credit card number. This ensures that even if tokens are intercepted or exposed, they cannot be reused to retrieve the original sensitive information. This approach enhances security by ensuring that tokens are unique and not predictable

Key word is "unique." When you tokenize the data, you need to conceal what the real numbers are, but the tokens need to be unique. If you and I both have our credit cards in the database and are assigned the same token, how is the vendor to know which one to process when I buy something? A. Data field watermarking - A Watermark for data synchronization describes an object of a predefined format which provides a point of reference value for two systems/datasets attempting to establish delta/incremental synchronization; any object in the queried data source which was created, modified, or deleted after the watermark's value will be qualified as "above watermark" and should be returned to the client requesting data. B. Field tagging - Defines a field that the user selects as input for an analytic script. OR Field tags provide the possibility of adding metadata to the fields in your data model.

"Single-use translation" appears to be an answer without a clear definition. A google search for this exact term yields only references to this exam question. Can anyone enlighten us?

The correct answer is C