CompTIA A+ Core 1 (220-1101) — Question 254

A technician installed a new router at a small office. After the installation, the technician notices that all devices have a 169.254.x.x IP address. Printers and fileshares are still working, but PCs cannot access the internet. Which of the following should the technician configure on the router to enable devices to connect to the internet?

Answer options

• A. APIPA
• B. DNS
• C. DHCP
• D. SMB

Correct answer: C

Explanation

The correct answer is C, DHCP, because it automatically assigns IP addresses to devices on the network, allowing them to connect to the internet. The 169.254.x.x addresses indicate that the devices are using Automatic Private IP Addressing (APIPA), which occurs when DHCP is not available. DNS is necessary for resolving domain names but does not assign IP addresses, while SMB is a protocol for file sharing and not related to internet connectivity.