At which of the following layers do frames exist? (Select TWO).

A.
OSI model Data link layer

B.
TCP/IP model Network Interface layer

C.
OSI model Physical layer

D.
OSI model Network layer

E.
TCP/IP model Internet layer

Explanation:

The data link layer is concerned with local delivery of frames between devices on the same LAN.
Data-link frames, as these protocol data units are called, do not cross the boundaries of a local
network. Inter-network routing and global addressing are higher layer functions, allowing data-link
protocols to focus on local delivery, addressing, and media arbitration. In this way, the data link
layer is analogous to a neighborhood traffic cop; it endeavors to arbitrate between parties
contending for access to a medium, without concern for their ultimate destination.