Exam 8: Networking and Digital Communication

A(n)________ cable uses light waves to transmit multimedia and voice data.

A(n)________ converts a message from digital to analog or from analog to digital.

Cables containing copper wires that resemble those in standard telephone cables are known as ________ cables.

Bandwidth is measured in bits.

A(n)________ private network provides a "tunnel" through the Internet preventing unauthorized access or eavesdropping.

A Web ________ is an invisible piece of code that silently notifies the sender when a message was opened and may also report other information from the user's computer.

DSL is slower than fiber-optic Internet.

One example of a synchronous method of communication is

Asynchronous communication is when the sender and recipient

A ________ is a network of computers in a close physical area.

The ________ encryption scheme improves the security of wireless networks.

With VoIP,phone calls are carried over the public phone network.

Mailing lists and newsgroups use ________ communications so that the sender and recipient do not have to be logged on at the same time.

The U.S.Department of Defense uses a(n)________,which is a specialized network used to determine locations,maps,and directions using signals from satellites that are orbiting the Earth.

A(n)________ broadcasts messages to all devices connected to a LAN.

________ is another term for millions of bits.

________ uses high-bandwidth connections to communicate multimedia over wireless networks,but lacks true broadband speed.

A(n)________ computer sends requests from the user to the server.

A Web ________ is functionally similar to a newsgroup but it's instead built on a Web application accessed through a Web browser.

Information sharing that is outsourced to a community of people rather than to a group of contracted specialists is called ________.