What feature of modern CPUs segregates areas of memory into data and code?

The feature that segregates areas of memory into data and code is known as Data Execution Prevention (DEP). This security feature is designed to protect against certain types of attacks, such as buffer overflow attacks, by preventing the execution of code from areas of memory that are designated for data storage.

By marking areas of memory as non-executable, DEP helps ensure that any code in these sections cannot be run, thereby reducing the risk of malicious code executing on the system. This is particularly important in maintaining the integrity of applications and the operating system, as it helps to prevent unauthorized execution of code that could compromise system security.

Other options, while related to security or memory management, do not specifically serve the function of segregating memory into executable and non-executable areas in the way that DEP does. This distinction is critical in the context of modern CPU architectures, which utilize various mechanisms to enforce memory protection and execution policies, helping to create a more secure computing environment.