FC0-U71 Private IPv4 Address Ranges Practice Question
A technician is troubleshooting a network issue and needs to identify the IP address of a device. Which of the following are private IPv4 addresses? (Select TWO).
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
192.168.1.10
Private IPv4 addresses belong to reserved ranges for internal networks (RFC 1918). The options that fall within private ranges are 192.168.1.10 (192.168.0.0/16) and 172.16.0.1 (172.16.0.0/12). The other options are not private: 8.8.8.8 is a public DNS server, 203.0.113.5 is a public test address (from RFC 5737), and 169.254.1.1 falls in the APIPA link-local range (169.254.0.0/16), which is not routable but also not considered private per RFC 1918.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
8.8.8.8
Why it's wrong here
8.8.8.8 is a public IPv4 address owned by Google DNS, not a private IP.
- ✓
192.168.1.10
Why this is correct
192.168.1.10 falls within the private range 192.168.0.0/16 (RFC 1918), making it a private IPv4 address.
- ✗
203.0.113.5
Why it's wrong here
203.0.113.5 is a public test address from the documentation range (RFC 5737), not private.
- ✗
169.254.1.1
Why it's wrong here
169.254.1.1 is an APIPA link-local address (169.254.0.0/16), which is not a private IP per RFC 1918.
- ✓
172.16.0.1
Why this is correct
172.16.0.1 falls within the private range 172.16.0.0/12 (RFC 1918), making it a private IPv4 address.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the FC0-U71 exam.