Which three of the following statements correctly describe switching? (Choose three.)
A.
A Layer 2 switch operates up to the data link layer of the OSI network model.
B.
A Layer 3 switch operates up to the transport layer of the OSI network model.
C.
A dual-layer switch operates at the transport and data link layers of the OSI
network model.
D.
A dual-layer switch operates at the data link and network layers of the OSI network
model.
E.
A multilayer switch operates up to Layer 4 of the OSI network model.