The maximum number of devices in a domain can vary depending on the specific technology or context being referenced. For instance, in Microsoft Active Directory, a single domain can theoretically support up to around 2 billion objects, including user accounts, computers, and other resources. However, practical limits may be influenced by factors such as performance, administrative overhead, and network architecture. It's essential to consider these factors when planning for a domain's capacity.
The recommended limit of DCs per domain as per Microsoft is 1200
Three is the number of maximum hops between domain controllers
A switch or router will limit the number of clients in a collision domain, thus limiting what can be in the collision domain.
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You can have up to seven Bluetooth controller devices on a PS3
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A collision domain is an area on the network where two devices may attempt to transmit at the same time. A hub has 1 collision domain overall. A switch has 1 collision domain per interface. The fewer devices in 1 collision domain, the better. ----