1. Explain in detail the functions of each layer of the 7-layer OSI model.
a. Layer 1 – Physical Layer – To establish and terminate the connection to a media source, it also does the conversions of data from one form to another.
b. Layer 2 – Data-Link Layer – Transmits data from one point to another.
c. Layer 3 – Network Layer – Transmits data from one host to another on another network.
d. Layer 4 – Transport Layer – Controls the end-to-end connections, reliability, flow control of data in a network.
e. Layer 5 – Session Layer – Controls connections between computers and manages application sessions in a network.
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| The TCP/IP model has only 4 layers. |
In OSI model, the protocols are better hidden. | In TCP/IP model, the protocols are not hidden. |
In OSI model, the protocols came after the model was described. | In TCP/TP model, the protocols came first, and the model was really just a description of the existing protocols. |
The OSI model is a reference model. | The TCP/IP model is an implementation of the OSI model. |
The OSI model originally distinguishes between service, interval and protocols. | The TCP/IP model doesn’t clearly distinguish between service, interval and protocol. |
The OSI model supports both connectionless and connection-oriented communication in the network layer, but only connection -oriented communication in transport layer. | The TCP/IP model supports both connectionless and connection-oriented communication in the transport layer. Giving users the choice |
4. Explain where the following items are in the OSI model: packets, frames, segments, unformatted bits.
j. Packets- Layer 3
k. Frames- Layer 2
l. Segments- Layer 4
m. Unformatted bits- Layer 1
1. Given the IP address 192.168.1.25 with a subnet mask of...