What is the primary function of DHCP failover in a network environment?

The primary function of DHCP failover in a network environment is to provide redundant IP address assignment. This functionality is crucial for maintaining network stability and availability. In a typical DHCP setup, a single server is responsible for assigning IP addresses to clients. However, if that server becomes unavailable due to hardware failure or network issues, clients may be unable to obtain an IP address, leading to connectivity problems.

By implementing DHCP failover, two DHCP servers can work together to ensure that if one server fails, the other can take over the IP address assignment process without any disruption to network services. This setup allows both servers to share and balance the IP address lease pool, providing redundancy. As a result, even in the event of a server failure, devices on the network can still receive the necessary IP configurations to maintain connectivity.

This explains why the focus is on redundancy and reliability rather than speed, network limitations, or remote access. Other options, while they might address different aspects of network management, do not align with the core purpose of DHCP failover as it centers specifically on ensuring continuous and reliable IP address distribution.