Which factor can directly impact network bandwidth?

The number of connected devices actively using the network is a crucial factor that can directly impact network bandwidth. When multiple devices are connected and engaged in data transmission at the same time, they share the available bandwidth. This sharing can lead to network congestion, resulting in slower data transfer speeds for each device. Essentially, the more devices that are actively utilizing the network, the more bandwidth is consumed, potentially degrading the performance for all connected devices.

Device age, while it can affect performance due to technological limitations or outdated hardware, does not inherently change the available bandwidth. Similarly, data encryption methods can influence the speed of data transmission but do not affect the actual bandwidth. Lastly, router placement can impact signal strength and coverage but does not alter how much bandwidth is available on the network itself. Consequently, the number of connected devices actively using the network is the most direct factor influencing network bandwidth availability and performance.