CompTIA Network+ (N10-008) — Question 480

A company is using a DHCP server with 12-hour leases for its device configurations. A user records the information that the DHCP server provides and uses the information to connect a device with a manual IP set. Over time, the user experiences intermittent connectivity and recurring connection timeouts. Which of the following is the MOST likely cause of the issue?

Answer options

• A. A duplicate IP address is on the network.
• B. The user's device is pointing to an incorrect DNS server.
• C. The device is set to use an incorrect subnet.
• D. The device is set to use an incorrect gateway.

Correct answer: A

Explanation

The correct answer is A because when a device is manually configured with a static IP that is already in use by another device on the network, it leads to IP address conflicts, causing connectivity issues. The other options, while possible, do not directly explain the intermittent connectivity and timeouts in this specific scenario, as they pertain to different aspects of network configuration.