Which DHCP option number is used to convey the host name?

• A. Option 24
• B. Option 12
• C. Option 1
• D. Option 15

Answer: (B)

In DHCP, devices can advertise or receive a variety of parameters, each serving a different purpose. The Host Name option is the one specifically designed to carry the device’s hostname. The client includes this field in the DHCP exchange to tell the network what its host name is, and the server or network tools can use that name for logging, administration, or applying host-specific policies. Other options cover different data, such as the domain name used for DNS (domain-related information) or network addressing details like the subnet mask or DNS servers. Because only the Host Name option is meant to convey the actual host name, it’s the correct choice for identifying the device by name on the network.