SSID Broadcasting

Correct Answer: Enable open SSID broadcasting

In the context of a hospital needing a wireless network for non-sensitive activities with minimal security, enabling open SSID broadcasting would be the most appropriate configuration. This is because open SSID broadcasting allows the network to be publicly visible but does not require high-level encryption or security measures, making it ideal for non-sensitive activities. Disabling SSID broadcasting would not be practical as it makes the network invisible to devices which are not pre-configured to connect to it. Enabling WPA3 encryption provides a high level of security that is generally unnecessary for non-sensitive activities, hence would not be the ideal choice in the given context. Setting up a hidden network, again, hides the network from devices which are not pre-configured to connect to it. This could pose unnecessary complications for a network intended for non-sensitive activities. Hence, this option too would not be the ideal choice.

Correct Answer: Change the wireless channel

The best option in order to minimize the interference between the newly installed wireless network and a neighboring network, and yet maintain a visible SSID (Service Set Identifier), is to 'Change the wireless channel'. Wireless networks use a specific channel to transmit and receive data. By changing the wireless channel, the network administrator can essentially move the network to a different 'frequency lane', which could decrease the amount of interference with the neighboring network. In contrast, 'Disabling the SSID broadcast' would not solve the interference issue, it would simply make the SSID non-visible. 'Enabling MAC address filtering' would restrict access to the network based on the MAC address of the devices, but it won't decrease the interference. 'Upgrading to a higher gain antenna' might increase the signal strength but it doesn't necessarily reduce interference with other networks. Therefore, the most effective solution would be to change the wireless channel.

Correct Answer: Enable WPA2-Enterprise authentication

The best solution to prevent unauthorized users from accessing a business's wireless network, while still maintaining SSID visibility, is to enable WPA2-Enterprise authentication. This type of authentication uses a RADIUS server for authentication, which is more secure than the pre-shared key (PSK) method used in WPA2-Personal. It's the most robust form of wireless network security, making it the best choice for a business. The other options are not as effective. Setting the wireless mode to 802.11b only wouldn't necessarily prevent unauthorized access, it would just limit the type of devices that could connect. Changing the wireless channel wouldn't prevent unauthorized access either, it would just potentially minimize interference with other networks. Disabling SSID broadcasting would hide the network from being seen by casual users, but wouldn't actually prevent unauthorized access as the network can still be found by determined attackers.