A network administrator needs to ensure that users accept internet usage rules.

A captive portal is designed to present terms, conditions, or usage rules to users and require them to acknowledge/accept those rules before granting network or internet access. In Network+ (N10-009) security and access control concepts, captive portals are commonly associated with guest wireless or public access scenarios, where users are redirected to a web page that displays acceptable-use language and requires a click-through acceptance (and sometimes authentication). This provides a technical enforcement point: users must actively accept the rules to proceed, which supports organizational policy compliance and creates a recordable control in many implementations.

An Acceptable Use Policy (AUP) is the document that defines the rules, but by itself it does not technically force a user to acknowledge them at the time of access. NAC controls who/what can connect and can enforce posture and segmentation, but it does not inherently ensure users “accept” usage rules unless paired with a portal workflow. DNS filtering blocks or allows domain access categories (malware, adult content, etc.), which enforces browsing restrictions but does not guarantee user acceptance of rules. Therefore, the best answer to ensure users accept the rules is captive portal.

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