2. 1. Introduction. -A network can be defined as a group of computers and other devices -Each of the devices on the network can be thought of as a node; each. Technology Education. Network Basics Figure: The definition of a computer network: a set of transmission paths . Network Hardware. • Network interface. Describe the functionality of LAN, MAN, and WAN networks. • Identify the possible . MAC Address. • The network interface card address, called the hardware.
|Language:||English, Spanish, Portuguese|
|ePub File Size:||22.88 MB|
|PDF File Size:||11.25 MB|
|Distribution:||Free* [*Regsitration Required]|
Tools for teaching computer networking and hardware concepts / Nurul Sarkar, editor. .. processor, it is important that the student grasp the basic concepts of. In this chapter, you'll begin by relating networks to situations and concepts hardware or software failure that causes information or applications to be. Networking concepts and hardware Local area network; Single office, building, campus; 10 Mbps to Mbps to the desktop common Some basic concepts.
This eliminates the unnecessary repetition of the hub. Using a switch, computer A sends a message to computer B —the other computers do not see the message. Those computers can send other messages at the same time without interfering.
Switches do have a limitation though—they only know about the addresses of equipment that is plugged directly into them. So, you can only send messages to a small number of devices—however many ports the switch has! If you need to send a message to a computer on another network, it will need to be sent through a router, which we discuss next. Routers do the majority of the hard work on a network - they make the decisions about all the messages that travel on the network, and whether to pass messages to and from outside networks.
There are three main functions:. Routers separate networks into sections, or bridge different networks together, as we see in the example above—the private network of They can assign IP addresses. In the example of They can filter messages or keep users out of private networks. Most routers have a Firewall built in.
This is a software function that keeps unwanted messages from reaching the computers on the inside, or private part, of the network. Let us take another look at As it turns out, that postal service building is acting as a Router. In this case, the postal service building is routing messages between the rest of the Internet using its public address and the street with private addresses. This module is intended to provide some helpful background on networking.
We recommend reading the upcoming but not finished! Learn about Wireless after this guide.
Introduction This document covers the basics of how networking works, and how to use different devices to build networks. This module covers the concepts of: Clients and servers—how services such as e-mail and web pages connect using networks. IP addresses—how devices on a network can be found.
Network hubs, switches and cables—the hardware building blocks of any network. Routers and firewalls—how to organize and control the flow of traffic on a network.
Clients and Servers An important relationship on networks is that of the server and the client. What is one real world example of a client and server relationship: Below we can see On it are three houses: Find the IP addresses assigned to your computer, and your network. What is the IP address for your computer?
Network Hubs and Switches Traditionally, computers are connected to each other using cables—creating a network. Routers and Firewalls Routers do the majority of the hard work on a network - they make the decisions about all the messages that travel on the network, and whether to pass messages to and from outside networks. There are three main functions: Separate and Bridge Routers separate networks into sections, or bridge different networks together, as we see in the example above—the private network of Firewall and Protect They can filter messages or keep users out of private networks.
Ethernet A type of networking protocol—it defines the types of cables and connections that are used to wire computers, switches, and routers together. Most often Ethernet cabling is Category 5 or 6, made up of twisted pair wiring similar to phone cables. Hub A network device that repeats the traffic it receives to all connected devices.
Switch A network device that sends traffic it receives to a specific connected device, such as a single desktop computer or laptop. Router A network device that can bridge between different networks, determine what traffic can pass between them, and perform other functions on a network, such as assigning IP addresses.
Firewall A function typically performed by routers, this filters traffic between networks and can protect them from interference or attacks. Related Information This module is intended to provide some helpful background on networking.
Download All. New IT professionals who want to learn the basics of a structured, layered approach to networking, including the fundamentals of network hardware and components, network protocols, IP addressing and subnetting, and various tools used in network monitoring and troubleshooting. Ideal candidates include:. Experience expert-led online training from the convenience of your home, office or anywhere with an internet connection.
My GK. Checkout Cart Loading Create an Account Forgot Your Password? Access MyGK.
Understanding Networking Fundamentals Exclusive — Exclusive - Build a foundation of networking knowledge in a real-world, multi-vendor environment. GK Delivery Format: Access Period: View Entire Schedule. Basics of layered network protocols and compare the two primary reference models: Viewing outline for: Building Blocks of Networks Network Infrastructure: Media Network Infrastructure: Switches and Access Points Network Infrastructure: Viewing labs for: Ideal candidates include: Entry-level and newly hired technical professionals, including PC support, help desk, and networking professionals Sales and marketing professionals looking to increase their ability to communicate with technical professionals and increase sales Technical professionals looking to strengthen core skill before pursuing advanced topics and certifications.
Course Delivery This course is available in the following formats: