At which two layers does the

network adapter work?

The network adapter, also known as the network interface card (NIC), works at the physical layer (Layer 1) and the data link layer (Layer 2) of the OSI model.

The network adapter, also known as a network interface card (NIC), works at the data link layer (Layer 2) and the physical layer (Layer 1) of the OSI model. It connects a computer or device to a network, translating data between the computer's internal format and the network's external format. At the data link layer, the network adapter handles tasks such as framing and error detection, while at the physical layer, it deals with the electrical, mechanical, and functional aspects of transmitting data over a physical medium like Ethernet or Wi-Fi.