Which Two Methods Help To Prevent The Disruption Of Network Services

A network is defined every bit a group of ii or more computer systems linked together. There are many types of computer networks, including the post-obit:

Local-area networks (LANs) : The computers are geographically close together (that is, in the same building).
Wide-area networks (WANs) : The computers are farther autonomously and are continued by phone lines or radio waves.
Campus-surface area networks (CANs) : The computers are within a limited geographic area, such as a campus or military base.
Metropolitan-area networks MANs) : A data network designed for a town or city.
Home-expanse networks (HANs) : A network contained within a user's home that connects a person'due south digital devices.

NETWORK CHARACTERISTICS

In improver to these types, the post-obit characteristics are likewise used to categorize different types of networks:

Topology : The geometric arrangement of a computer system. Common topologies include a jitney, star , and ring. Run across the Network topology diagrams in the Quick Reference section of Webopedia.
Protocol : The protocol defines a common set of rules and signals that computers on the network utilise to communicate. I of the most pop protocols for LANs is chosen Ethernet . Another pop LAN protocol for PCs is the IBM token-ring network .
Compages : Networks can be broadly classified as using either a peer-to-peer or client/server compages .

Computers on a network are sometimes chosen nodes . Computers and devices that classify resource for a network are chosen servers .

Image: Network Topology diagram

(v.) To connect two or more computers together with the ability to communicate with each other.

Network topologies

Network topology describes how a network is arranged physically and logically. This clarification includes how links and nodes are continued in relation to each other. There are many varieties of network topologies including:

Jitney: Each computer and network device is connected to a unmarried cable or courage.
Star: Every host device is continued to ane central host.
Ring: Each network device connects to exactly 2 other network devices, which forms a single continuous pathway for signals to motion through each device, like a ring.
Mesh: Each network device is connected in a way where each device distributes data amongst each other.
Tree: Each computer device is connected like branches on a tree; it is a combination of bus and star network topology.

Public vs. private networks

There are two types of networks one tin connect to. This includes private and public networks. A public network is a type of network in which anyone who has access to and through information technology can connect to the internet. A private network involves restrictions that are established to promote a secured environment. Some things to notation when it comes to public and private networks include:

Individual networks require a password, near public networks do not
Some public networks (similar hotels or businesses) crave a web login for authentication
Public networks (similar at airports and cafes) should be used with caution and a VPN

Examples of network devices

- Internet-enabled devices such as laptops, smartphones, gaming consoles, printers, smart domicile devices
- Servers are pieces of computer hardware or software that provides functionality for other programs or devices
- Firewalls monitor and filter incoming and approachable network traffic based on a business's previously established security policies
- Bridges connect two LANs and controls information catamenia betwixt them
- Switches acquire which automobile is connected to its port by using its IP address
- Repeaters dilate received input signals to a college frequency domain, and so information technology is reusable and scalable
- Hubs are physical layer networking devices used to connect multiple devices in a network
- Modems are small boxes that connect your devices to the net using cables

- Routers are devices that forward data packets between calculator networks
- NICs , or network interface cards, provide computers with a dedicated, full-time connectedness to a network

Vangie Beal

Vangie Beal is a freelance business and applied science author roofing Internet technologies and online business organization since the late '90s.