#46. A home network consists of three computers. The computers are used for controlling the climate of the house. All three computers can ping the IP addresses of many Web sites, but not by the URL of the site. Which of the following settings needs to be corrected?
#49. A technician is assigned to configure the e-mail function on three computers in a residential home office. The network also consists of a DSL router and firewall. Which of the following two protocols must the technician configure on the firewall for the e-mail to function properly?