Exam 5: Telecommunications, Wireless Technologies, and Computer Networks

When you talk to someone, the transmission medium is your voice.

The last ____ refers to the part of a telecommunications network that connects to residences and businesses.

A ____ is a person responsible for setting up and maintaining a network, implementing network policies, and assigning user access permissions.

Devices attached to a network are called ____.

A ____ makes it possible for several users to send information over a network at the same time without slowing each other down.

Twisted pair and coaxial cables transmit microwave signals over copper or other metal wires. _________________________

Coaxial cable is slower than Cat 1 and 2 twisted pair copper cables.

A(n) ____ is a device or software that filters the information coming onto a network; it protects the network computers from hackers, viruses, and other unwanted network traffic.

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. -Dimitri includes a section on ____ cable, and states that at one time it was the preferred cable for computer networks, but that now it is primarily used for television and radio networks.

____________________ is wireless networking technology that makes use of access points to wirelessly connect users to networks within a range of 120-600 feet.

____ are small, lightweight devices that receive signals from transmitters.

Wireless phone conversations, wireless computer networks, global positioning systems, police and emergency communications, satellite communications, and wireless clock systems all make use of radio waves.

A(n) gateway modulates and demodulates signals from one form to another, typically for the purpose of connecting to the Internet. _________________________

Two technologies, ____ and Long Term Evolution (LTE), have emerged as fourth-generation (4G) solutions to offer Internet access over large areas with speeds that rival or surpass cable and DSL.

The FCC has defined broadband as faster than 200 Kbps. Almost everyone today would consider 200 Kbps to be an extremely fast connection.

Near field communication technology is a wireless technology designed for short distances (up to ____ centimeters), aimed at utilizing cell phones for secure wireless payments.

-Referring to the accompanying figure, this pad where you either wave or tap the card to pay with your credit card is a type of ____ payment system.

Contactless payment systems make use of a(n) RFID chip embedded in a credit card, ID card, and other device to wirelessly send data to a reader. _________________________

____ computing refers to computing that involves multiple remote computers that work together to solve a computation problem or perform information processing.

Telecommunications signals can travel through air using ____.