Identifying New Host Systems on the Network

C.

The security administrator installed a new network scanner that identifies new host systems on the network. Based on this information, the most likely answer is C. Rogue system detection.

Rogue system detection is a security measure used to identify unauthorized or unmanaged devices on a network. Rogue devices can pose significant security risks, as they can provide attackers with a foothold into the network or introduce vulnerabilities that can be exploited. Rogue system detection tools scan the network for devices that do not belong or are not authorized to be present on the network.

A vulnerability scanner is a tool used to identify vulnerabilities in software, applications, or systems. Vulnerability scanners typically scan networks for known vulnerabilities and provide reports that help administrators prioritize patches and remediation efforts.

A network-based intrusion detection system (IDS) is a security tool that monitors network traffic for signs of malicious activity. IDS can be either host-based or network-based. Host-based IDS monitor the activity on a single host, while network-based IDS monitor network traffic across multiple hosts.

A configuration compliance scanner is a tool used to verify that systems and devices on a network are configured according to established security policies and standards. Configuration compliance scanners can be used to ensure that devices have the proper security settings, patches, and updates installed.

In summary, the security administrator most likely installed a rogue system detection tool to identify unauthorized or unmanaged devices on the network.