It depends on which textbook you are reading; some textbooks state that the frame is constructed in the data link layer (layer 2) and transmitted out the physical layer as a packet. Some other textbooks will say that the packet is created in layer 2 and transmitted out the physical layer as a frame.
Application layer.
A web browser is best associated with the application layer of the OSI Model.
layer 1, or the physical layer
layer 3 , network layer .
layer 2
DHCP runs at the application layer of the OSI model.
Data Link
data link layer should divide frame into segment by ravi from kurnool
Data link layer of the OSI model..
- data Link
it may be network layer or transport layer.. it depends on the design of the firewall.. also depends on the requirement specification..
Frame relay and PPP is used with WAN encapsulation. Frame Relay most closely compares to the OSI data link layer (Layer 2). If you remember that the word "frame" describes the data link layer protocol data unit (PDU), it will be easy to remember that Frame Relay relates to OSI Layer 2. Like other data-link protocols, Frame Relay can be used to deliver packets (Layer 3 PDUs) between routers.