You have been given the task of configuring a new DNS server and giving it a static IP address. The network uses DHCP, which is configured to assign IP addresses in the range of 192.168.1.100-192.168.1.150. The network has a subnet of 192.168.1.0/24. You assign the new DNS server a static IP of 192.168.1.130. When testing the new DNS server, you are unable to contact it on port 53. Given this information, what is the most likely issue?
CompTIA exam questions often include extra information to test a candidate's ability to identify what is relevant. In this scenario, the key pieces of information are the DHCP scope (192.168.1.100-192.168.1.150) and the manually assigned static IP address (192.168.1.130) for the DNS server. Because the static IP falls within the DHCP server's active range, an IP address conflict is highly likely. This occurs when the DHCP server assigns 192.168.1.130 to a client device, while the DNS server is also configured to use that same IP address, causing one or both devices to have network communication problems. The best practice is to assign static IPs from a range that is outside the DHCP scope or to create a DHCP reservation for the device.
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