What is the role of DHCP in a network?

The role of DHCP, or Dynamic Host Configuration Protocol, in a network is to automatically assign IP addresses to devices on that network. When a device connects to a network, it does not have a static IP address by default, which can complicate network management and connectivity. DHCP alleviates this issue by dynamically assigning a unique IP address from a predefined range to a device, enabling it to communicate on the network without the need for manual configuration.

This process not only simplifies the onboarding of devices but also helps in efficiently managing the pool of available IP addresses, ensuring that devices do not end up with duplicate addresses, which could lead to connectivity issues. DHCP can also provide additional configuration details, such as subnet masks and default gateways, facilitating further network connectivity and configuration.

The other options pertain to different functions that DHCP does not fulfill. Providing high-speed internet access involves different network technologies and infrastructure, enhancing network security relates more to firewalls and intrusion detection, while managing email services involves protocols like SMTP or IMAP, not DHCP. Each of these functions is essential in networking but does not fall under the role of DHCP.