CompTIA CASP+ Practice Test

What is the primary requirement for achieving the highest level of confidentiality in data protection?

1. Employee training programs

2. Full disk encryption of all data

3. Regular software updates

4. Network segmentation

The correct answer is: Full disk encryption of all data

Achieving the highest level of confidentiality in data protection primarily revolves around securing sensitive data from unauthorized access and exposure. Full disk encryption plays a crucial role in this process because it ensures that all data stored on a device is rendered unreadable without proper authorization, typically through encryption keys. This means that even if an unauthorized individual gains physical access to the device, the encrypted data remains secure and inaccessible without decrypting it using the correct credentials. While employee training programs are vital for raising awareness about security protocols and practices, and regular software updates are essential for protecting against vulnerabilities, they do not directly encrypt data. Network segmentation is a strategy to improve network security by dividing it into smaller segments, which can help control data flow and reduce attack surfaces but does not inherently secure the data itself. Therefore, full disk encryption stands as the most straightforward and effective method for ensuring that sensitive data remains confidential, protecting it from being easily accessed or exploited by unauthorized users.