What types of systems are included in "networks" in a security assessment?

The correct answer encompasses a comprehensive view of what constitutes "networks" within the context of a security assessment. Networks are not limited to a single type of system; rather, they include a broad array of systems, infrastructures, and equipment that facilitate data communications. This includes both data systems, such as servers and networking devices (routers, switches), and telecommunications systems that support voice and video communications. By considering the entirety of networks in this way, security assessments can adequately evaluate potential vulnerabilities and risks across all relevant technologies and communication channels, ensuring a holistic understanding of security needs.

The other options are too narrow in scope. Focusing solely on telecommunication systems or just computer processing assets fails to consider the interconnected nature of modern networked environments where multiple types of systems converge to support overall functionality. Physical security systems, while critical, are not inherently part of the networks as defined in the context of data and telecommunications, thus missing the broader perspective needed for an effective security assessment.