You are creating a network environment for a small business

You are creating a network environment for a small business customer. You know that the DSL modem the customer uses to connect to the Internet includes a DHCP server used to issue IP addresses to all the computers on the network dynamically. How will these computers receive DNS services so that computers will have domain name–to–IP address translation services?

A. Manually configure the computers to use the IP address of a public DNS server on the Internet.

B. Manually configure the computers to use the IP address of the ISP’s DNS server.

C. The DSL modem has a DNS server, and the DHCP server will issue the IP address of this DNS server automatically along with IP addresses.

D. The DSL modem has a DNS server, and you can manually configure the computers to use the IP address of the DSL modem to point to the DNS server.

Solution

C. DSL modems provide a number of services on a customer’s local home or small business network, including DHCP and DNS. If you have configured the DSL modem to provide these services, the DHCP server will automatically issue the address to its DNS server (the same IP address as is assigned to the DSL modem) to network computers so that they can access domain name–to–IP address translation for hosts on the Internet.