An IP address starting with169.254.x.xis aself-assigned address(also calledAPIPA- Automatic Private IP Addressing). It's used when a client device cannot contact a DHCP server. This address allows limited communication on the local network segment butno internet access.
Option A:DHCP reservations assign specific IPs from the DHCP server - they don't result in APIPA.
Option B:Dynamic assignment from DHCP assigns valid IPs in the proper subnet, not 169.254.x.x.
Option D:Static IPs are manually set and would not fall in the 169.254.x.x range unless set incorrectly.
CompTIA A+ Core 1 Exam Objective Reference:
Objective 2.6: Given a scenario, configure and troubleshoot network connectivity.