Exam 6: The Internet

The Domain Name System is a database stored on one central Internet computer.

All of the following are examples of the kind of software shown in the figure above EXCEPT ____.

Critical Thinking questions (Multiple Choice) Which of the following does NOT utilize grid computing?

How are domain names related to IP addresses?

In communications terminology, ____ means changing the characteristics of a signal, as when a modem changes a digital pulse into an analog audio signal.

A(n) ____ operates routers, communications equipment, and other network devices that handle the physical aspects of transmitting and receiving data between their subscribers and the Internet.

Most firewall software is preconfigured to block only unnecessarily open ____ targeted by hackers.

Broadband speeds are available in all of a cellular service provider's coverage area

In BitTorrent lingo, a ____ is a client that does not allow other clients to download file pieces.

Although exact figures cannot be determined, it is estimated that Internet traffic exceeds 100 ____________________ each week.

Case 3 Matthew has his new computer system in place and is ready to have an Internet connection. He is overwhelmed by the variety of choices for home Internet connections. For instance, he could choose to connect using an existing telephone line or dial-up connection. He could also use a cable modem, ISDN (Integrated Services Digital Network), DSL (Digital Subscriber Line), or satellite Internet service. Which Internet connection is simplest and least expensive for Matthew because the necessary equipment and software are preinstalled on most new computers?

What is WAP?

Unlike a dial-up service that is connected only for the duration of the call, a cable Internet service provides a(n) ____ connection.

____________________ Internet access allows you to use the Internet while you are on the go.

Fixed wireless technologies have more latency than satellite Internet service.

____ transfers files between local and remote host computers.

Current DSL technology can transport data at speeds up to ____ downstream for a distance of about 1.25 miles.

A domain name ends with an extension that indicates its ____ domain.

Sharing printers or files on a LAN or the Internet requires open ports so the data can be transferred to and from your computer.