What is the purpose of using DHCP in a network?

The purpose of using DHCP, or Dynamic Host Configuration Protocol, in a network is to allocate dynamic IP addresses to client devices. DHCP automates the process of assigning IP addresses, which eliminates the need for manual configuration. This is particularly useful in networks where devices frequently connect and disconnect, as well as in larger environments where managing IP addresses manually would be impractical and error-prone.

By utilizing DHCP, devices such as laptops, smartphones, and printers can dynamically receive unique IP addresses, subnet masks, default gateways, and DNS server information upon connecting to the network. This ensures that every device can communicate effectively while minimizing the risk of addressing conflicts that can occur with static IP assignments. DHCP also supports user mobility, allowing devices to easily be moved between different networks without manual reconfiguration.

The other choices focus on unrelated functionalities: assigning static IP addresses is a different function altogether and does not involve DHCP; managing DNS routing pertains to how domain names are translated into IP addresses, which can be a separate service; and enhancing wireless security involves methods like encryption and authentication, which falls outside the primary role of DHCP. Thus, the emphasis on dynamic IP allocation makes the correct answer clear.