CompTIA Updated N10-009 Exam Questions and Answers by aras

Single-mode fiberis best suited forlong-distance communication, often exceeding 10 km (6.2 miles). It's immune to EMI and offers high bandwidth — making it the ideal choice forconnecting buildings across a city.

Coaxial(A) andTwinaxial(B) are used for shorter distances and specific use cases (e.g., storage or legacy systems).

Cat 5(D) is limited to 100 meters and is not suitable for city-level interconnects.

✅For long-distance, high-speed, and reliable communication between buildings,Single-mode fiberis the professional choice.

The netstat command provides information about network connections, routing tables, interface statistics, masquerade connections, and multicast memberships. Running netstat on the server can help the administrator verify that the web server process is listening on the expected port (e.g., port 80 for HTTP or port 443 for HTTPS) and that there are no issues with network connections. This is a crucial first step in diagnosing why the web server is not accessible via a browser.References: CompTIA Network+ study materials. ​