CIS 1332

Describe the role of a host on a network.

A host, more commonly known as a server is any computer that provides services and connections to other computers on a network.

Briefly describe how data and information travel the Internet.

1) you send a request to the Internet 2) a cable modem transfers the computer's digital signals to the cable television line in your house 3) your request digital signals travel through cable television line to a central cable system which is shared by up to 500 homes in a neighborhood 4) the central cable system sends your request over high speed fiber optic lines to the cable operator who often is also the ISP 5) the ISP rush request through the Internet backbone to the destination server 6) the server retrieves the requested web page and sends it back through the Internet backbone to your computer

Explain how ARPANET contributed to the growth of the internet.

ARPANET was the network that became the basis for the Internet. Based on a concept first published in 1967, ARPANET was developed under the direction of the U.S. Advanced Research Projects Agency (ARPA). The initial purpose was to communicate with and share computer resources among mainly scientific users at the connected institutions. ARPANET took advantage of the new idea of sending information in small units called packets that could be routed on different paths and reconstructed at their destination. The development of the TCP/IP protocols in the 1970s made it possible to expand the size of the network, which now had become a network of networks, in an orderly way.

Identify the role of of the W3C

Developing protocols and guidelines that ensure long-term growth for the Web. The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web (abbreviated WWW or W3). The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards. W3C's mission is to lead the Web to its full potential.

Define the term, domain name. List general steps to register for a domain name.

Domain names are used to identify one or more IP addresses. It is what you type to search for something (typing microsoft.com will lead you to the microsoft website). For example, in the URL http://www.pcwebopedia.com/index.html, the domain name is pcwebopedia.com. Because the Internet is based on IP addresses, not domain names, every Web server requires a Domain Name System (DNS) server to translate domain names into IP addresses. To register for a domain name, build a website and then find a host for it (a host maintains files for the domain-- these files can be visible to the public)

Define the terms, dongle and broadband. List popular wired and wireless broadband Internet services.

Dongle = a small device able to be connected to and used with a computer, especially to allow access to wireless broadband or use of protected software (instead of using Wi-Fi there's a wire to connect it) Broadband = Internet connection with fast data-transfer speeds and and always on connection Popular Wired broadband internet services = ~Cable internet service ~DSL (digital subscriber line) ~FTTP (Fiber to Premises) Popular wireless broadband internet services = ~Wi-Fi (wireless fidelity) ~mobile broadband ~fixed wireless ~satellite service

State the purpose of a hot spot, and list tips for using hotspots safely.

Hotspots are essentially wireless access points providing network and/or Internet access to mobile devices like your laptop or smartphone, typically in public locations. To put it more simply, they're places where you can take your laptop or other mobile device and wirelessly connect to the Internet. Tips: 1) Be aware you're never secure 2) Harness built-in security tools. [Mac OS X and Windows have built-in security features that you should take advantage of. Enable your firewall (through security settings) and check off "Block all incoming traffic." This setting will keep most of the bad guys out. Disabling file sharing (shown in the video above) is also an important security measure.] 3) Protect your passwords 4) Look for the padlock in the address bar or double check to make sure the URL has http in front of it 5) Check the network name (ex. FREE WIFI might be a trap)

Describe the purpose and composition of an IP address. Differentiate between IPv4 and IPv6.

IP address is short for internet protocol address and is a sequence of numbers that uniquely identifies the location of each computer or device connected to the Internet/over a network. All IP addresses are made up of four parts (quadrants) separated by dots, like this: XXX.XXX.XXX.XXX where each XXX can be any number between 0 and 255. Examples of IP addresses are: 192.168.66.5 127.0.0.1 IPv4 address was the old way IPv6 is the address and is the new way, and longer. IPv6 is the sixth revision to the Internet Protocol and the successor to IPv4. It functions similarly to IPv4 in that it provides the unique, numerical IP addresses necessary for Internet-enabled devices to communicate. However, it does sport one major difference: it utilizes 128-bit addresses.

ISP stands for ____.

Internet service provider Examples: Verizon, AT&T, Time Warner