Exam 5: Telecommunications, Wireless Technologies, and Computer Networks

A faster frequency means a slower data transmission rate.

Today's cell phone networks are nearly all digital.

In computer networks, the data transmission rate is also referred to as the bandwidth and is measured in ____ per second.

Mariah is getting used to having a cell phone. This first month she was surprised by several extra charges on her bill, and called her cell phone service provider. -The second fee, explained the customer service agent, was because Mariah made calls when she was located outside the carrier's coverage area. This appeared as ____ on Mariah's invoice.

Computers can connect to networks and the Internet by ____.

Microwave signals are used for high-speed, high-capacity communication links and satellite communications.

A ____ area network connects networks within a city or metropolitan-size area into a larger high-speed network.

A network operating system performs the same types of functions for the network as operating system software performs for a computer.

One characteristic of communications is that the message is ____.

A wide area network (WAN) connects LANs and MANs between cities, across country, and around the world using microwave and satellite transmission or telephone lines.

____ computing utilizes Internet-based service providers to deliver information and computing services, including software, business systems, and data storage, for business and personal use.

A type of wireless transmission, called infrared transmission, involves sending signals ____ via light waves.

Twisted pair ____________________ cable consists of pairs of twisted wires covered with an insulating layer.

Samson has seen cell phones advertised as 1G, 2G, 3G and 4G. He knows the "G" stands for generation, but does some research to find out more. -Samson discovers that 1G is the original ____ network.

A large organization might employ dozens of network administrators.

If you measured the voltage on cables used to connect PCs, you would see a discrete voltage state-either high or low. This is called a(n) ____ signal.

In order to provide coverage throughout large geographic areas, many cities are incorporating wireless weave networks that allow wireless routers to pass data over the network without being physically connected through wires. _________________________

A cellular network is a ____ network in which a geographic area is divided into cells with a transceiver antenna (tower) and station at the center of each cell, to support mobile communications.

-Referring to the accompanying figure, the providers on the left-hand, green side (AT&T, Orange, etc.) are ____ carriers.

Three types of transmission cables are typically used to connect data communications devices that include all of the following EXCEPT ____.