A network administrator is troubleshooting connectivity issues on a server. Using a tester, the administrator notices that the signals generated by the server NIC are distorted and not usable. In which layer of the OSI model is the error categorized? A)Presentation layer. B)Network layer. C)Physical layer. D)Data link layer.
The error described, where the signals generated by the server NIC are distorted and unusable, falls under the category of the Physical layer of the OSI model.
The error described, where the signals generated by the server NIC are distorted and unusable, falls under the category of the Physical layer of the OSI model.
The Physical layer (Layer 1) is responsible for the transmission and reception of raw data bits over a physical medium. It deals with the electrical, mechanical, and physical aspects of transmitting data, such as voltage levels, cables, connectors, and network interface cards (NICs).
In this scenario, since the issue is related to the distorted signals generated by the server NIC, it indicates a problem at the physical layer, such as a faulty cable, loose connection, or a defective NIC.
To address the problem, the network administrator would need to examine the physical connections and components involved, ensuring that cables are securely plugged in, testing with different NICs or cables, or potentially replacing faulty hardware.
It’s worth noting that while the physical layer is responsible for the transmission of data, it does not handle error correction or protocols. Those elements are covered by higher layers such as the Data Link layer (Layer 2) or the Network layer (Layer 3). However, in the given scenario, the issue is specifically related to the physical transmission of data.
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