For each of the following functions identify the corresponding layer from OSI model.
a. Communicates directly with user’s application program
b. Error correction and retransmission.
c. Mechanical, electrical, and functional interface
d. Responsibility for delivery between adjacent nodes
e. Reassembly of data packets
(a) The “application layer” provide the facility to communicate directly with
the user’s application layer.
(b) The task of error correction and retransmission performed by the “data
(c) The task of mechanical, electrical, and functional interface performed by
the “physical layer”
(d) The “network layer” Responsible for delivery between adjacent nodes
(e) The “transport layer” responsible for the Reassembly of data packets
If we have three systems as follows:
1. One in communication from outside city
2. Two systems are within the same city but at different offices not far apart.
Using given scenario, explain the role of following addressing methods for OSI Layers when
Transferring data between systems A, B and C:
1. Service point address
2. Logical address
3. Physical address