Exam 5: Telecommunications, Wireless Technologies, and Computer Networks

T3 lines carry 72 signals on one line and are used by telecommunications companies.

A communications processor, sometimes called a ____ processor, is devoted to managing communications to and from a large computer network.

____ uses tiny transponders in tags that can be attached to merchandise or other objects and read wirelessly using a reader.

A network is fundamentally a communication system.

Each cell tower has a transmission and receiving range of 3-15 miles depending on geography and environment.

-Referring to the accompanying figure, the credit card can work with a quick tap because of the ____ chip embedded in the card.

Identify the letter of the choice that best matches the phrase or definition. -Access Internet services, including Web browsing and e-mail

Dimitri is studying electronic technology at his local junior college. The first day, the teacher passed out pieces of cable, and asked the students to write a paragraph about each type and how they are used to connect to the Internet. -In his research, Dimitri discovers that fiber-optic cable has all of the following advantages EXCEPT: ____.

A microwave link can carry a large percentage of the capacity of a fiber-optic strand.

What are the advantages of cloud computing? What are the risks of using cloud computing?

A(n) bridge determines the best path for passing a data packet between networks to its destination. _________________________

A communications hub is basically a microwave station placed in the Earth's orbit. _________________________

To receive the information being transmitted on a specific frequency, all you need is a device with a(n) ____ that allows you to tune in to that frequency.

Wi-Fi technology uses wireless repeater points that wirelessly send and receive data using radio frequencies to and from computers and other digital devices equipped with Wi-Fi cards or adapters. _________________________

Identify the letter of the choice that best matches the phrase or definition. -Have your phone replaced for free if it is lost, stolen, or damaged

Areas around access points where users can connect to the Internet are often called warmspots.

An important characteristic of communication is that a communications signal goes through a communications ____ such as wires or radio waves.

WiMAX, which stands for Worldwide Interoperability for ____________________, also known as IEEE 802.16, is a next-generation wireless broadband technology that is both faster and has a longer range than Wi-Fi.

____ is a cell phone feature that allows you to apply unused minutes from one month to the next.

____ percent of U.S. homes have access to broadband Internet.