Exam N10-009 Topic 2 Question 109 Discussion

Actual exam question for CompTIA's N10-009 exam
Question #: 109
Topic #: 2
Which of the following is the most likely reason a host assigns itself an IP address in the 169.254.x.x range (APIPA)?

Suggested Answer: A Vote an answer

When a host fails to obtain an IP address from a DHCP server, it assigns itself an APIPA (Automatic Private IP Addressing) address in the 169.254.x.x range, commonly described as a "self-assigned IP." This prevents communication outside the local link, including reaching the default gateway.
* B. RFC1918 addresses are private ranges (10.x.x.x, 172.16-31.x.x, 192.168.x.x), but these are not self- assigned.
* C. If the TCP/IP stack were disabled, the host wouldn't have any IP at all.
* D. If a static IP were assigned, it would show a configured value, not self-assigned.
References (CompTIA Network+ N10-009):
* Domain: Network Troubleshooting - IP addressing issues, DHCP failures, APIPA behavior.

by Noel at Jan 23, 2026, 09:11 AM

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