David uses a method that lists the specific applications that can be installed and run on a system. The method uses hashes of the application's binary to identify each application to ensure that the application matches the filename provided for it. What type of method is David using?

David is using a whitelisting (or allowed list) method. Methods like this allow only specific applications to be installed and run on a system and often use hashes of known good applications to make sure that the applications are those that are permitted. A blacklisting (or blocked list) method prevents specific applications or files from being used, stored, or downloaded to a system. Although antivirus and antimalware methods may have similar features, the most accurate answer here is whitelisting.