How does a DOCSIS modem receive its internet protocol (IP) address?

The choice that states a DOCSIS modem receives its internet protocol (IP) address from a dynamic host configuration protocol (DHCP) server is correct because this is the standard process used in cable internet systems. When a DOCSIS modem connects to the cable network, it first communicates with the Cable Modem Termination System (CMTS).

During this process, the modem sends a request for an IP address to the DHCP server, which is typically part of the CMTS infrastructure. The DHCP server manages the pool of IP addresses that can be assigned to modems and is responsible for dynamically allocating an IP address to each modem when it connects to the network. This allows for efficient use of IP address resources and enables modems to connect to the internet without requiring manual configuration.

The other methods listed for obtaining an IP address are generally less common for DOCSIS modems. Static IP configuration would require the user to manually set the IP address, which is contrary to the convenience and flexibility that DHCP provides. Manual entry processes at the modem are also not used in standard configurations, as they complicate the connection process. Lastly, connecting directly to an internet service provider's main server does not accurately describe how IP assignments are made in a DOCSIS