Which term describes the measures taken to protect a computer network?

The term that describes the measures taken to protect a computer network is network security. Network security encompasses a range of technologies, policies, and practices designed to protect the integrity, confidentiality, and accessibility of computer networks and data. This includes both hardware and software tools and processes used to safeguard against unauthorized access, misuse, or attacks.

Network security can include various measures such as firewalls, intrusion detection systems, encryption, and access controls, all of which work together to create a secure environment for data transmission and network functionality. The primary goal of network security is to ensure that only authorized users can access network resources while protecting sensitive information from cyber threats.

In contrast, network analysis focuses on examining network performance and diagnosing issues, which does not inherently involve protective measures. Network optimization involves improving the efficiency and speed of a network rather than its security features. Network infrastructure refers to the physical and virtual resources that support the flow, transfer, and processing of information, which includes components like routers and switches, but it does not specifically address protective measures.