The Internet consists of thousands of computers all over the world interwoven together through long-distance, high-speed, fiber-optic networks. What are these called?
The Internet was designed to survive failures. What model does it use to achieve this?
What provides the basic software structure for communication on the Internet?
What service provides the structure for the World Wide Web?
The main Internet tier is called Tier 1. How many companies are considered Tier 1 providers?
Tier 1 and Tier 2 providers lease their Internet connections to ____.
What is the near side of the router often called that is used to connect to the Internet?
What device converts analog signals to digital and vice versa, enabling computers to talk to each other via standard commercial telephone lines.
Which of the following transfers data via analog signals?
What type of signal does a computer use to communicate?
Computers, being binary by nature, use only two states of voltage. Positive volts are one state. What is the other state?
What kind of communication transmits data as a series of individual ones and zeroes?
What component in the computer converts individual serial bits of data into 8-bit parallel data that the PC can understand?
What type of modems convert analog signals to digital signals, and vice versa, but must rely on serial ports to convert between serial and parallel data?
What is the unit of measurement, also known as one cycle per second, that expresses the speed of phone lines?
Integrated Services Digital Network (ISDN) sends telephone transmissions across what type of lines?
Almost all ____ modems connect to a PCI or PCI Express expansion bus slot inside the PC.
Connecting to the Internet via an ISP requires two things: hardware and ____.
Dial-up links to the Internet use PPP. What is PPP?
How many lines does the Basic Rate Interface (BRI) setup use?
What kind of cable does broadband cable use to provide high-speed Internet access?
Broadband cable typically offers speeds of 384 Kbps for upload. What is the typical speed for download?
You are setting up a broadband connection for your home computer. A UTP cable is used to connect to the cable modem. What does the other end of the UTP cable connect to?
How do most businesses connect their internal local area network (LANs) to an ISP?
What is the most widely used standard for e-mail?
What tool enables multiple computers to use the Internet connection provided by one computer on the network?
PCs that connect via a LAN to an ICS host computer are called ____.
What tool tracks when the user initiates two-way communication with other machines over the Internet?
Which servers provide Web sites and Web pages that users can access?
You want to allow ActiveX controls to run when you visit a Web site. What would you configure?
Which software enables multiple connections to the Internet to go through one protected PC?
What should you check if your Web browser refuses to run a Java program?
What can you use to access a newsgroup?
What do you call the devices that allow computers to communicate with other computers through telephone lines or radio frequency?
To communicate over a phone line, you computer needs a modem (which stands for modulator-demodulator). The modem takes the digital information from your computer and modulates it onto an analog wave in the range of sound frequencies that can be carried over phone lines.
What allows computers to communicate over telephone lines?
Modems. Modems allow one computer to communicate to another computer which is not linked to it by dedicated cables and ports. Modems allows computers to use ordinary telephone lines. The modem translates digital information (such as found on a CD) to sound (analog information), and sends it over the telephone network.
What allows computer to talk to other computers?
The Ethernet standard is what allows these machines to talk to one another. Each computer (or printer or other device) that is connected to this Ethernet cable is set up to have a unique address, or IP Address.