CompTIA Network+ N10-009 Practice Question

Configuring URL filtering rules on the network firewall to block access to websites categorized under gambling is the most efficient way to ensure such sites are inaccessible during corporate usage. URL filters operate by identifying sites based on pre-determined categories and user-defined lists, and then blocking any requests to them as specified by the policy. Updating firewall firmware and enforcing NAC are useful security practices but do not directly impact web usage policies. Disallowing mobile devices might reduce risk exposure, but it doesn't specifically target gambling sites and would not be effective if the devices access gambling content through other networks.