A computer network is a complex union of various devices that creates a self-contained data sharing and processing system. Other than the computers themselves, there are various intermediary devices that make data transfer possible.
These devices are like the backstage artists of a play, that work behind the scenes and get little recognition. Intermediary Devices in a Network Computer networks vary in scale from small work groups, local area networks LANs to some of the largest networks like the Internet. They are all created from connections between computers.
These devices make the data transfer and regulation of these networks possible. They are designed to serve many functions like making data flow control decisions, encryption, modulation, and demodulation, provide network security, and most importantly, provide point-to-point connectivity.
Here are some of the prime examples. Switches Network switches or packet switches are devices that connect the various segments of a network, and their main function is switching packets of data. Also known as a network bridge, they switch processes and direct data at the level of the data link layer, which is second of the OSI model layers concerned with physical addressing of data.
A switch may also operate at the level of other OSI layers like the physical, network, or transport layer. Multilayer switches act at different OSI layers simultaneously.
Network switches play a vital role in the functioning of local area networks. Routers As its name suggests, a router is an intermediary device that regulates and directs data traffic between computer networks. It forwards data to various network destinations and controls its flow between two or more logical subnets, which do not have the same network address in a large network.
It selects the optimum path for data transfer between two points in a network. The Open University is authorised and regulated by the Financial Conduct Authority in relation to its secondary activity of credit broking.
Skip to main content. Search for free courses, interactives, videos and more! Free learning from The Open University. What is the IoE? About this free course 15 hours study. Free statement of participation on completion of these courses. Course content Course content. Internet of everything This free course is available to start right now. Session 1 Session 2 Session 3 Session 4 Session 5. Free course Internet of everything.
Skip Your course resources. Lab - Mapping the internet File. Packet Tracer — Packet Switching Simulation. Investment in new infrastructure is required in order to access the cloud. Applications can be accessed over the Internet through a subscription. Which two Internet connection options do not require that physical cables be run to the building? A single message can be broken into multiple message blocks that are transmitted through multiple circuits simultaneously. If all circuits are busy, a new call cannot be placed.
Circuit-switched networks can dynamically learn and use redundant circuits. Requiring strong, complex passwords is a practice that supports which network security goal? Data sent over the network is not altered in transmission.
The fewest possible devices are affected by a failure. The network provides predictable levels of service to different types of traffic. The network should be able to expand to keep up with user demand. Which device performs the function of determining the path that messages should take through internetworks? Which tool provides real-time video and audio communication over the Internet so that businesses can conduct corporate meetings with participants from several remote locations?
The Internet is a WAN. Which three network tools provide the minimum required security protection for home users? Which area of the network would a college IT staff most likely have to redesign as a direct result of many students bringing their own tablets and smartphones to school to access school resources?
What two criteria are used to help select a network medium from various network media? Which term describes the state of a network when the demand on the network resources exceeds the available capacity? What are three characteristics of a peer-to-peer network?
Intermediary devices are used to connect end devices to the network and can also be used to connect individual networks to form an internetwork. Intermediary devices include: 1 Switches and wireless access points. 2 Routers and modems. 3 Firewalls.
What is Intermediary Device? Any networking device positioned between a Remote Access Service (RAS) server and a RAS client. Intermediary devices are third-party devices for performing security-related tasks such as authentication, encryption, and other functions.
Start studying End Device, Intermediary Device or Network Media? (Chapter 1). Learn vocabulary, terms, and more with flashcards, games, and other study tools. A computer network is a complex union of various devices that creates a self-contained data sharing and processing system. Other than the computers themselves, there are various intermediary devices that make data transfer possible. These devices are like the backstage artists of a play, that work behind the scenes and get little recognition.
Role of Intermediary Devices in the network The switch, which is basically a modern and more efficient version of the outdated hub, is a network access device. The router is an internetworking device. In addition to the end devices that people are familiar with, networks rely on intermediary devices to provide connectivity and to work behind the scenes to ensure that data flows across the network.