CompTIA Server+ (SK0-005) — Question 297

A DHCP server was installed on the network and duplicate IP addresses are being assigned. The administrator decides to manually account for IP addresses and remove the DHCP services. However, clients are still being assigned IP addresses. Which of the following would be the best option to resolve this issue?

Answer options

• A. Checking the DHCP server for reservations
• B. Checking the lease time of the IP address
• C. Checking the DHCP server for unexpired leases
• D. Checking and scanning for any rogue DHCP servers within the network

Correct answer: D

Explanation

The correct answer is D because rogue DHCP servers can cause conflicts by issuing IP addresses that are already in use by the legitimate DHCP server. Options A, B, and C may help in managing leases but do not address the root cause of the issue, which is the presence of unauthorized DHCP servers.