220-1201 Question #291: Real Exam Question with Answer & Explanation

The correct answer is C: 192.30.0.1. 192.30.0.1 is a public IP address, which can be assigned by an ISP for WAN connectivity. The other options (10.x.x.x, 172.16.x.x–172.31.x.x, and 192.168.x.x) are private IP ranges and cannot be used as public-facing addresses on the internet.

Submitted by diego_uy· Mar 30, 2026

Question

A technician needs to deploy a router at a home office to provide internet access. The WAN port is required to connect to a static, public IP address assigned by the ISP. Which of the following should the ISP assign?

Options

A10.1.1.1
B172.16.0.1
C192.30.0.1
D192.168.10.1

Explanation

192.30.0.1 is a public IP address, which can be assigned by an ISP for WAN connectivity. The other options (10.x.x.x, 172.16.x.x–172.31.x.x, and 192.168.x.x) are private IP ranges and cannot be used as public-facing addresses on the internet.

Topics

#Private IP ranges#Public IP addresses#IPv4 addressing

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