CompTIA A+ 220-1101 Practice Question

When devices receive network configurations that deviate from the expected settings, it's typically a sign your network may have an unauthorized DHCP server distributing invalid addresses, suggesting a rogue DHCP device is present. 'Excessive network traffic' might slow down communications but wouldn't change device configurations. 'Misconfigured DNS service' could lead to the incorrect resolution of domain names but would not alter the fundamental network configuration of client devices. 'Switching loop' might cause duplication of broadcasts and degrade network performance, but it would not result in devices obtaining outside network configuration settings.