encapsulation
source and destination port number or two applications communicating the data
MAC provides physical addressing. The BIA (Burn In Address) which is stored in RAM when the computer boots up is added to each frame that is created as the source mac address. But to answer your question, the MAC layer does the following: Data Encapsulation and Media Access Control.
the network layer --> check your question. ^^^^^^^^^^^^^^^^^^^^^^^^^^^ That is totally not the right answer, how about you actually read the book for the course. It is the data link layer that does encapsulation. I agree - its the Data Link Layer which encapsulates the Network layer...NOT the Network Layer.
7 - application
* addressing * error detection * frame delimiting
No, frame delimiting is a primary responsibility of the Logical Link Control sublayer of the Data Link Layer.. Data link layer exists of 2 sublayers; Media Acces control Sublayer (MAC) & Logical Link Control sublayer (LLC)
layer 2
It first occurs at the application layer.
Encapsulation. Actually, this is one type of encapsulation; encapsulation occurs at several layers.Encapsulation. Actually, this is one type of encapsulation; encapsulation occurs at several layers.Encapsulation. Actually, this is one type of encapsulation; encapsulation occurs at several layers.Encapsulation. Actually, this is one type of encapsulation; encapsulation occurs at several layers.
Encapsulation
By encapsulation process data is put in a nutshell with all basic protocol information at each and every OSI layer. During this phase of network layer each layer conveys and exchange information to its neighboring layer. This is done utilizing Protocol Data Units.
IP source and destination address
dictate hot to accomplish layer functiions 2= require layer encapsulation
Conversation Multiplexing Segmentation and Rassembly Error Checking
The physical address is added
encapsulation