IT Chapter 2 Review

today's data transmission speeds are measured in...

connects a personal computer to a cable-TV system that offers an internet connection

a space station that transmits data as microwave

a company that connects you through your communications connection to its server, which connects you to the internet

a rectangular area on the computer screen that contains a document or displays an activity

writing an online message that uses derogatory, obscene, or inappropriate language

browsing for products in stores but buying them from an online rival and frequently at a lower price

software that enables users to view web pages and to jump from one page to another

a computer with a domain name

compromises the communications rules that allow browsers to connect with web servers

the expression of how much data--text, voice, video, and so on-- can be sent through a communications channel in a given amount of time

a string of characters that points to a specific piece of information somewhere on the web

one thousand

a location on the Internet

In the email address [email protected], Kim_Lee is the..

.

Which of the following is not one of the four components of a URL?a. web protocolb. name of the web serverc.

name of the browserd. name of the directory on the web servere. name of the file within the directory

Which of the following is the fastest method of data transmission?a. ISDNb.

DSLc. modemd. T1 linee. cable modem

protocol used to retrieve email messages from the server to your computer

Who owns the Internet?

new address assigned to your computer each time you connect you connect your ISP

used to connect to an internet backbone for ISPs that don't run their own backbones

Which of the following is not a protocol?a.

TCP/IPb. IEc. HTTPd. SMTP

True/FalsePOP3 is used for sending email, and SMTP is used for retrieving email

True/FalseA dial-up modem us an ISP

True/FalseThe Internet Corporation for Assigned Names and Numbers (ICANN) was established to assign IP addresses

True/FalseAll computer communication use the same bandwidth

the slowest but cheapest form of internet connection

True/FalseA dynamic IP address gives you faster Internet access than a static IP address does

True/FalseA bookmark lets you return to a favorite website quickly

True/FalseA server is also called a host computer

True/FalseRadio buttons are used for listening to radio stations on the internet

True/FalseHypertext refers to text presented with very large letters

DSL, cable modem, satellite, T1/T3, radio waves

refers to how much data—text, voice, video, and so on—can be sent through a communications channel in a given amount of time.

Different communications systems use different bandwidths for different purposes. The wider the bandwidth, the faster data can be transmitted.

Whereas with email you can connect only with specific addresses you know about, with the Web you have hypertext, a system in which documents scattered across many Internet sites are directly linked, so that a word or phrase in one document becomes a connection to a document in a different place. Links are indicated by underlining or highlighting.

If the user clicks on the link, he or she is taken to another document or website.

A cable modem connects a computer to the Internet via a cable-TV system. DSL (digital subscriber line) uses special hardware and software to transmit data over regular phone lines. DSL is faster than standard data transmission over regular phone lines, and cable modem transmission is faster than DSL.

The Internet is a worldwide computer network that connects hundreds of thousands of smaller networks.

No one owns the Internet; its components are owned and shared by thousands of private and public entities. When you use your personal computer at home, you connect to the Internet via your local loop, over telephone wires or cable. The local loop connects you to your Internet service provider (ISP), whose headquarters can be almost anywhere but who provides local points-of-presence (POPs) around the country, so users don't have to pay long-distance charges to connect. The POP acts as a local gateway to the ISP's network. The ISP functions as an interface between you and the rest of the Internet. Some ISPs have their own high-speed backbones to transmit data; others lease backbone connections (Internet Exchange Points, or IXPs) through network service providers (NSPs) run by major communications companies.

Each time you connect to the Internet, your ISP assigns you a temporary Internet protocol (IP) address, so that your location can be identified (to enable data transmission to your computer). The protocol, or set of standards, or rules, that enables all computers to use data transmitted on the Internet is TCP/IP (Transmission Control Protocol/Internet Protocol). Although no one owns the Internet, everyone on the net adheres to standards overseen by ISOC (Internet Society). ICANN (Internet Corporation for Assigned Names and Numbers) regulates Internet domain names.

IMAP (Internet Message Access Protocol) offers expanded functions compared to POP3 (Post Office Protocol version 3) for retrieving email; for example, with IMAP one can search through email messages while they are still on the ISP's server—before one downloads them.

IP is used to send the packets across the internet to their final destination TCP is used to reassemble the packets in the correct order

To regulate human friendly internet domain names (.com, .org, .net), that overlie IP addresses and identify the website type

Dynamic IP addresses is an IP address that will change everytime you connect to internetStatic IP addresses is an IP address that will remain the same every time you connect to the internet

Short for web blog; an internet journal

Nobody owns the internet, we the user of the internet owns it our self

Electronic sale or exchange of goods and services directly between, cutting out traditional intermediaries