What type of portal places a prospective system in a restricted area until compliance is met?

A quarantine portal is designed to restrict access to a system until it meets specific compliance criteria. This type of portal ensures that any devices attempting to connect to the network are assessed for security compliance, such as having up-to-date antivirus software, security patches, or other security configurations. Until these criteria are satisfied, the device remains in a restricted area, limiting its access to network resources.

The mechanism behind a quarantine portal helps organizations maintain a secure environment by preventing potentially vulnerable devices from accessing the broader network, thereby reducing the risk of cyber threats. This controlled access is crucial for protecting sensitive data and maintaining overall network integrity.

In contrast, other options like captive portals typically redirect users to authentication pages, while agent-based and dissolvable NAC (Network Access Control) solutions may focus on control through software agents on the devices themselves rather than restricting access through isolation until compliance is verified.