Which of the following can be a function of a wireless access point?

A wireless access point primarily serves to expand the range of a wireless network by allowing wireless devices to connect and communicate through it, effectively extending the reach of the network beyond the range of the primary router. This function is crucial in environments where users need coverage in areas that are too far from the main source of the Wi-Fi signal, such as large homes, offices, or public spaces.

When it comes to wireless device connectivity and network expansion, access points can facilitate seamless communication between devices and the broader network, ensuring users maintain a strong connection while moving throughout the space. This capability is essential for maintaining a stable internet connection, which is especially important in situations with many users or high-demand applications.

While connecting wired networks and converting digital data into analog signals are important functions in networking, these are typically handled by different devices such as routers and modems. Similarly, filtering network traffic is primarily the role of security appliances or routers that manage or restrict access to certain types of traffic. Thus, the ability to extend the range of a wireless network is the key function associated with wireless access points.