Final answer:
Embedded devices typically form an ad-hoc network, which is a decentralized, dynamic, and self-configuring wireless network. This type of network is well-suited for scenarios where embedded devices need to communicate directly without fixed infrastructure.
Step-by-step explanation:
The question is regarding the type of network that embedded devices will form. Given the options, the correct answer is that embedded devices often form an ad-hoc network. An ad-hoc network is a type of wireless network where devices can communicate directly with each other without the need for a centralized access point such as a router. This is in contrast to networks like ATM (Asynchronous Transfer Mode), Ethernet, or FDDI (Fiber Distributed Data Interface), which are more structured and often require fixed infrastructure and configuration.
In ad-hoc networks, devices can join and leave the network at any time, and they can also act as nodes that relay data to other devices, thus forming a dynamic, self-configuring network. This property is particularly useful for embedded devices in scenarios where temporary networks are needed, or where infrastructure is not available or practical, such as in sensor networks, home automation systems, disaster recovery situations, and military operations.