Table of Contents
Where are modems on OSI model?
With respect to the OSI model of network design, a cable modem is both physical layer (layer 1) device and a data link layer (layer 2) forwarder. As an IP addressable network node, cable modems support functionality at other layers.
At which layer of the OSI model do repeaters and modems work?
4.1 Repeaters A Repeater enables signals to travel longer distances over a network. Repeaters work at the OSI’s Physical layer. A repeater regenerates the received signals and then retransmits the regenerated (or conditioned) signals on other segments.
How do modems work?
A modem modulates and demodulates electrical signals sent through phone lines, coaxial cables, or other types of wiring; in other words, it transforms digital information from your computer into analog signals that can transmit over wires, and it can translate incoming analog signals back into digital data that your …
At what layers of the OSI does it work?
Summary
| Layer | Name | Function |
|---|---|---|
| Layer 3 | Network | To provide internetworking. To move packets from source to destination |
| Layer 2 | Data Link | To organize bits into frames. To provide hop-to-hop delivery |
| Layer 1 | Physical | To transmit bits over a medium. To provide mechanical and electrical specifications |
Is my modem Layer 2 or 3?
A modem is part of the data link layer (layer 2) and connects an internal network to the external Internet. This device essentially brings the Internet to a home network or facility’s network. A router, on the other hand, is part of the network layer (layer 3) and passes data between various devices.
What layer does router work?
Routers operate on the third layer of the OSI Model, the Network-Control Layer.
What is Layer 1 of the OSI model?
Layer 1 of The OSI Model: Physical Layer defines electrical and physical specifications for devices. The physical layer defines the relationship between a device and a transmission medium, such as a copper or optical cable.
What are two types of modem?
There are three types of modems: cable, digital subscriber line (DSL) and dial-up. A cable modem uses coaxial cables that connect to the back of the modem and the bolt-like outlet in your wall or on your cable box. This type of modem delivers high speed internet to your device.
What are the three types of modem?
There are three kinds of modems—Cable, DSL, and Fiber—that operate via different cable mediums depending on your Internet Service Provider (ISP).
What are the three layers of the OSI model?
Answers Explanation & Hints: The three upper layers of the OSI model, the session, presentation, and application layers, provide application services similar to those provided by the TCP/IP model application layer.