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CompTIA 220-801 Certification Practice Test

Category - Essentials

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George has just attached a computer with an NIC to a network. He is not sure if the NIC has a physical connectivity with the network. Which of the following demonstrates that there is successful physical connectivity between your NIC and the network?
  1. Being able to ping the local host successfully
  2. Glowing NIC LEDs
  3. Device Manager shows that the NIC is OK
  4. Able to boot the PC successfully
Explanation
Answer - B - The best way to ensure that a physical connectivity between the NIC and the network is valid is to check the glowing NIC LEDs. As long as there is a packet exchange between the computer and the network, the LEDs glow.

Key Takeaway: While troubleshooting a network, it is very crucial to check the NIC status before you proceed further. The green LINK LED on the NIC confirms the integrity of the physical connectivity.
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