220-1202 · Question #41
220-1202 Question #41: Real Exam Question with Answer & Explanation
The correct answer is A: Port mapping. By using port mapping (NAT) rules on the router, you can choose to forward the surveillance system's HTTP/HTTPS ports only on the LAN interface and leave them closed on the WAN side. This ensures users on the local subnet can access the camera interface via its IP address, while
Question
A technician is setting up a surveillance system for a customer. The customer wants access to the system's web interface on the LAN via the system's IP address. Which of the following should the technician use to prevent external log-in attempts from the internet?
Options
- APort mapping
- BSubnetting
- CStatic IP
- DContent filtering
Explanation
By using port mapping (NAT) rules on the router, you can choose to forward the surveillance system's HTTP/HTTPS ports only on the LAN interface and leave them closed on the WAN side. This ensures users on the local subnet can access the camera interface via its IP address, while external login attempts from the internet are blocked.
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