is Greek for "far"

(a)  

Refers to information presented in whatever form is agreed upon by the parties creating and using

(a)  

Are the exchange of data between two devices via some form of transmission medium such as a wire cable

(a)  

The effectiveness of a data communications system depends on four fundamental characteristics:

(a)  

Five components of a data communications system

(a)  

Is the information (data) to be communicated. Popular forms of information include text, numbers, pictures, audio, and video.

(a)  

Is the device that sends the data message. It can be a computer, workstation, telephone handset, video camera, and so on.

(a)  

Is the device that receives the message. It can be a computer, workstation, telephone handset, television, and so on.

(a)  

Is the physical path by which a message travels from sender to receiver.

(a)  

Is a set of rules that govern data communications. It represents an agreement between the communicating devices.

(a)  

Is represented as a bit pattern, a sequence of bits (Os or Is)

(a)  

Represented by bit patterns. However, a code such as ASCII is not used to represent. It is directly converted to a binary number to simplify mathematical operations.

(a)  

Is composed of a matrix of pixels where each pixel is a small dot

(a)  

Refers to the recording or broadcasting of sound or music.

(a)  

Refers to the recording or broadcasting of a picture or movie

(a)  

Communication between two devices can be:

(a)  

In (a)   mode, the communication is unidirectional, as on a one-way street

Each station can both transmit and receive, but not at the same time

(a)  

Both stations can transmit and receive simultaneously

(a)  

Is a set of devices (often referred to as nodes) connected by communication links

(a)  

Most networks use (a)   , in which a task is divided among multiple computers.

The most important network criteria are:

(a)  

Can be measured in many ways, including transit time and response time.

(a)  

Is the amount of time required for a message to travel from one device to another

(a)  

Is the elapsed time between an inquiry and a response

(a)  

Performance is often evaluated by two networking metrics:

(a)  

In addition to accuracy of delivery, network reliability is measured by the frequency of failure, the time it takes a link to recover from a failure, and the network's robustness in a catastrophe.

(a)  

Network (a)   issues include protecting data from unauthorized access, protecting data from damage and development, and implementing policies and procedures for recovery from breaches and data losses

Is a communications pathway that transfers data from one device to another.

(a)  

Provides a dedicated link between two devices. The entire capacity of the link is reserved for transmission between those two devices.

(a)  

A (a)   connection is one in which more than two specific devices share a single link

Other term for multipoint

(a)  

Refers to the way in which a network is laid out physically.

(a)  

In a (a)   topology, every device has a dedicated point-to-point link to every other device

How many links in a mesh topology

(a)  

In a (a)   topology, each device has a dedicated point-to-point link only to a central controller, usually called a hub

A (a)   topology, on the other hand, is multipoint. One long cable acts as a backbone to link all the devices in a network

In a (a)   topology, each device has a dedicated point-to-point connection with only the two devices on either side of it

Is usually privately owned and links the devices in a single office, building, or campus

(a)  

Provides long-distance transmission of data, image, audio, and video information over large geographic areas that may comprise a country, a continent, or even the whole world

(a)  

Are essential in creating and maintaining an open and competitive market for equipment manufacturers and in guaranteeing national and international interoperability of data and telecommunications technology and processes.

(a)  

Refers to the structure or format of the data, meaning the order in which they are presented.

(a)  

Refers to the meaning of each section of bits

(a)  

Refers to two characteristics: when data should be sent and how fast they can be sent.

(a)  

Data communication standards fall into two categories:

(a)  

Is a multinational body whose membership is drawn mainly from the standards creation committees of various governments throughout the world.

(a)  

Meaning of ITU-T

(a)  

Meaning of ANSI

(a)  

Meaning of IEEE

(a)  

Meaning of EIA

(a)  

Is a thoroughly tested specification that is useful to and adhered to by those who work with the Internet

(a)