Which type of network topology entirely shuts down if there is a break in the main cable?

In a star topology, all devices are connected to a central hub or switch. If a cable connected to a single device fails, the rest of the network remains operational because the other connections to the hub are unaffected. Therefore, a break in one cable does not disrupt the entire network.

Wireless networks do not rely on physical cables for connectivity; instead, they use radio waves to transmit data. As such, they are not impacted by cable breaks. Wireless communication can continue unless the wireless access point itself fails, which is a different scenario than that described in the question.

In a ring topology, each device is connected to two others, forming a circular pathway for data. While a break in one cable can disrupt the network, many ring topologies include redundancy features to maintain communication. Thus, the entire network does not necessarily shut down due to a single break.