What optimization method will limit the Wi-Fi guest network traffic to 100Kbps so that utilization does not exceed the home network's cable modem Internet access downstream and upstream?

The end-user has to be login home modem and to set the limit to 100 kps for guest login in the network traffic.

Explanation:

In-office network if they use managed switch then setting can be done easily for guest login to control the network traffic.

In the home network, end-user will have option control the guest login with special password and those are connected to the home modem with special password setting can be done and network traffic can be controlled easily

As result set can be done in-home modern network