The greatest concern would be if vulnerability assessments are only conducted once per year, as this frequency does not provide ongoing assurance of the system's security. Regular assessments are crucial for identifying vulnerabilities in a timely manner.

Deep packet inspection provides the ability to examine packet payloads for sensitive content (not just headers), enabling detection and blocking of confidential data in motion. Without DPI, encrypted or non-standard traffic could bypass perimeter controls, undermining any monitoring or prevention efforts.