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98-366 Networking Fundamentals. 1.1 Understand the Concepts of the Internet, Intranet, and Extranet. 1.2 Understand the Local Area Network (LAN).
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98-366 Networking Fundamentals
1.1 Understand the Concepts of the Internet, Intranet, and Extranet
1.2 Understand the Local Area Network (LAN)
1.3 Understand VLANs, Wired LANs, and Wireless LANs
1.4 Understand the Wide Area Network (WAN)
1.5 Understand Wide Area Network Connections
1.6 Understand Wireless Network Connections and Security
1.7 Understand Network Topologies and Access Methods
MTA Network Fundamentals 1 Test
L E S S O N 1 98-366 Networking Fundamentals
98-366 Networking Fundamentals
98-366 Networking Fundamentals
98-366 Networking Fundamentals
In 1962 ARPA opened a computer research program and appointed an MIT scientist named John Licklider to lead it. He had just published his first memorandum on the "Galactic Network" concept ... a futuristic vision where computers would be networked together and would be accessible to everyone.
In October 1969, Internet messaging programs (IMPs) were installed in computers at both UCLA and Stanford. UCLA students would 'login' to Stanford's computer, access its databases and try to send data.
98-366 Networking Fundamentals
The experiment was successful and the fledgling network had come into being
By December 1969 ARPANET comprised four host computers with the addition of research centers in Santa Barbara and Utah
This was the beginning of the Internet
98-366 Networking Fundamentals
A private network based on Internet protocols such as TCP/IP but designed for information management within a company or organization
One of the key advantages of an intranet is the broad availability and use of software applications unique to the needs of a corporation
It is also a computer network and includes some of the same technologies as the Internet
98-366 Networking Fundamentals
Intranet uses include providing access to software applications; document distribution; software distribution; access to databases; and training
An intranet is so named because it looks like a World Wide Web site and is based on the same technologies, yet is strictly internal and confidential to the organization and is not connected to the Internet proper
Some intranets also offer access to the Internet, but such connections are directed through a firewall that protects the internal network from the external Web
98-366 Networking Fundamentals
Virtual private network are nodes ( nodes are a connection point, either a redistribution point or a communication endpoint (some terminal equipment) on a public network They communicate among themselves using encryption so that their messages are safe from being intercepted by unauthorized users VPNs operate as if the nodes were connected by private lines. An example would be teachers at home needing limited access to the school district’s intranet would be given VPN software for their personal laptop
98-366 Networking Fundamentals
98-366 Networking Fundamentals
A computer system or network firewall is designed to permit authorized communications while blocking unauthorized access The device is configured to permit or deny computer applications based upon a set of rules and other criteria Firewalls are technological barriers designed to prevent unauthorized or unwanted communications between computer networks or hosts
98-366 Networking Fundamentals
98-366 Networking Fundamentals
In this lesson, you will learn about: LANs Perimeter networks Addressing Local loopback IPs An Internet collection
98-366 Networking Fundamentals
Computer networks ranging in size from two computers in a home to a few computers in a single office to hundreds or even thousands of devices spread across several buildings. They function to link computers together and provide shared access to printers, file servers, and other services.
98-366 Networking Fundamentals
LANs in turn may be plugged into larger networks, such as larger LANs or wide area networks (WANs), connecting many computers within an organization to each other and/or to the Internet. The physical media that connect devices, interfaces on the individual devices that connect to the media, protocols that transmit data across the network, and software that negotiates, interprets, and administers the network and its services are all a part of the LAN.
98-366 Networking Fundamentals
A perimeter network is a specialized network. Usually a physical subnet outside of the main firewall allowing a business to expose their services to the Internet.
