The Network Interface cards
A Switch is a Layer 2 device as they operate in the data link layer
Hubs are a physical layer (layer 1) device; most switches operate at the Data Link layer (Layer 2) of the OSI model.
Bridge operate on data link layer
Data Link Layer
Layer 2 - Data Link
No. A digital subscriber line (DSL) operates at layer 2 or the Data-link layer.
data link
Data-link layer
Switches / Bridges and hubs work at data link layer, but there are layer three switches which operate at network layer. Dhruv
at both physical layer 1 and Data Link layer 2
Router works in Network Layer of OSI model
Node