Basically, any device that needs to communicate with another device on an IP network will require an IP address. so, each PC and router will need an address, along with anything else per above: a switch, a server, and IP phone, etc.
dhcp
More unique ip addresses, so essentially more devices on the network.
The correct answer is switch.
These addresses are not assigned to devices because they have a reserved meaning. All zeroes refers to "this network", and all ones usually is assigned to a broadcast address (all devices).
The DHCP service.
Computers that are connected to each other create a network. These networks are often configured with "public" internet Protocol (IP) addresses -- that is, the devices on the network are "visible" to devices outside the network (from the Internet or another network). Networks can also be configured as "private" -- meaning that devices outside the network cannot "see" or communicate directly to them.
It is what... DHCP is designed to automatically distributed IP addresses to connected to the same network devices.
Computers that are connected to each other create a network. These networks are often configured with "public" Internet Protocol (IP) addresses -- that is, the devices on the network are "visible" to devices outside the network (from the Internet or another network). Networks can also be configured as "private" -- meaning that devices outside the network cannot "see" or communicate directly to them.
OUI (Organizationally Unique Identifier) is used in MAC addresses of network devices to identify the manufacturer or vendor of the device. It helps in organizing and managing network traffic, troubleshooting network issues, and ensuring security by identifying the origins of devices connected to the network.
MAC Filtering
If you are using a DHCP server, you are basically safe. It's a good practice to release all ip addresses after certain time especially if you have temporary computer in the network.
It should not cause any problems on the network since the first 24 bits of the MAC addresses are different.