OSI and TCP Layered Models

OSI Model

TCP/IP Model

Questions

1. By OSI layer, which group sets the standards for each OSI layer?

Layer 1: ITU

Layer 2 &3: IEEE and EIA/TIA

Layer 4 – 7 the ITEF

2. Describe, by device, how information from your computer’s keyboard at home gets out to the Internet. Specifically, briefly describe each device and its function.

When keystrokes are input, the massages then sent to the CPU through a bus. The transport layer takes the massages and breaks into several smaller massages. The massages will be packed and sent to the router via the wire or wireless connection. The packets are sent out to the receiver by router over the Internet.

3. Go to speedtest.net and test your Internet connection speed. Report that on your assignment.

My ISP is Comcast. I have download speed 18.53 Mbps and upload speed 6.01Mbps.

Vocabulary Table