Mark works as a Network Administrator for BlueWell Inc. While surfing the Internet, he enters a address?

DNS (Domain Name System) is the protocol responsible for translating fully qualified domain names (FQDNs) like 'www.example.com' into IP addresses. Without DNS resolution, the client cannot route the request to the correct server. This lookup occurs automatically in the background each time a URL is entered.

SMTP (Simple Mail Transfer Protocol) is used for sending email messages, not for resolving domain names during web browsing.

DHCP (Dynamic Host Configuration Protocol) dynamically assigns IP addresses to network clients, but it does not translate domain names to IP addresses.

ARP (Address Resolution Protocol) maps a known IP address to a MAC address on a local network segment, not a domain name to an IP address.