CompTIA Network+ (N10-007) — Question 202

A technician notices clients are receiving a 169.254.x.x IP address following the upgrade of a server. Which of the following ports should the technician check on the local server firewall?

Answer options

• A. ports 20 and 21
• B. ports 67 and 68
• C. ports 80 and 443
• D. port 123 and 8080

Correct answer: B

Explanation

The 169.254.x.x IP address indicates that clients are using Automatic Private IP Addressing (APIPA) due to the inability to obtain an IP address from a DHCP server. Ports 67 and 68 are used for DHCP, which is why option B is correct. The other options are not related to DHCP and would not resolve the IP address assignment issue.