Mod 2 Midterm
12. State the purpose of a DNS server.
A DNS server is the way that the Internet holds the Domain Names and their IP addresses. When you type in a website name, the DNS server changes the domain name to the IP address so the command can be sent to the computer.
20. Name and give examples of the components of a web address.
A web address consists of a protocol, domain name, and sometimes the host name, path to a specific webpage, or file name of the webpage
8. Describe the purpose and composition of an IP address. Differentiate between IPv4 and IPv6
An IP address stands for Internet Protocol address. It is the sequence of number that uniquely identifies the locations the location of each computer or device connected to the internet or any other network. The two IP addressing schemes are IPv4, and IPv6. The difference between the IPv4 is it addresses in availability, this being due to the growth of the Internet. On the other hand, the IPv6 scheme increases the available number of IP addresses exponentially.
48. Describe cyberbullying, and explain why it is difficult to catch the perpetrators.
Cyber bullying is harassment using technology. It is hard to catch perpetrators because it takes place on personal computers or phones that is not monitored by the school.
38. Explain how webpages use graphics, animation, audio, video, virtual reality, and plug-ins.
Graphics are used to show a visual representation of nontext information such as graphs, pictures, or drawings Animation is the appearance of motion created by displaying a series of still images in a sequence. Usually used for web based games Audio includes music, speech, or any other sound. These contents are able to be played once downloaded. Videos consists of images displayed in motions and most times they have accompanying audio. Virtual reality: 3D graphics Plug ins are programs that extend the capability of browsers.
40. Name the types of graphics formats used on the web and how they use compression.
The primary web file formats are gif (pronounced "jiff"), jpeg ("jay-peg"), and, to a much lesser extent, png ("ping") files. All three common web graphic formats are so-called bitmap graphics, made up of a checkerboard grid of thousands of tiny colored square picture elements, or pixels
14. Distinguish among the web, a webpage, a website, and a web server.
The www, for example, indicates a web server.
19. Define the term, web address. Name a synonym.
Unique address of a webpage. URL
32. Define the term, e-commerce. Differentiate among B2C, C2C, and B2B e-commerce.
a business transaction that occurs over an electronic network such as the internet B2C- sales to general public C2C- one consumer sells directly to another B2B- businesses provide goods to other businesses
23. Describe the purpose of GPS receivers, and why manufacturers embed them in smartphones.
is a navigation system that consists of one or more earth-based receivers that accept and analyze signals sent by satellites in order to determine the receiver's geographic location. Most smartphones include embedded GPS receivers so that users can determine their location, obtain directions, and locate points of interest.
9. Define the term, domain name. List general steps to register for a domain name.
is a text-based name that corresponds to the IP address of a server, such as a web server that hosts a website. Steps to run a domain name: 1. Run a browser. 2. Use a search engine to locate a domain name register and then navigate to the website. 3. Check to see if the domain name is available that you wish for. 4. Choose how many years you would like to pay and keep the domain name for. 5. Then pay for your domain and services.
10. Identify the purpose of several generic TLDs. Identify PTI's role with TLDs.
top-level domain of an internet address such as .org or .com. It states the corporation that owns it.
