A technician is trying to reach abc.intranet.com but is unable to do so by name. The technician is able to reach it by IP address, though. Which of the following is MOST likely misconfigured?

A misconfigured VLAN would typically prevent all communication (both by IP and name) or route traffic incorrectly, not selectively block name resolution.

The ability to reach a target by its IP address confirms that basic network connectivity is functional. However, the inability to reach it by its hostname (`abc.intranet.com`) points directly to a failure in the Domain Name System (DNS), which is responsible for resolving hostnames into IP addresses. This symptom is the most common indicator of a DNS configuration issue.

An incorrect subnet mask would prevent successful IP communication with hosts outside the perceived local subnet, thus affecting both IP-based and name-based access.

A misconfigured default gateway would prevent any communication to resources outside the local network segment, meaning the host could not be reached by either IP or name if it's on a different subnet.