Data Communication Part 1

What is data communication?

• Transfer of data from one point to the next.

• Transfer of electronic data from one point to the next over a communication medium.

• sending information

• none of the above

Types of communication media

• Twisted and coaxial cables

• duplex

• Bluetooth

• wired and wireless

collection of two or more computers joined together through communication media, to share information is?

• Computer network

• Wired network

• half duplex

• full duplex

radio-waves, microwave, infrared, satellite and bluetooth are examples of which media?

• wired

• television

• wireless

• computer

Full Duplex data flow means:

• data travels in both directions, but only one direction at a time.

• data travels in only one direction.

• - data travels in both directions at the same time.

• data does not travel.

List the characteristics of an effective data communications network:

"The system must distribute data to the correct destination. Data must be received by the intended device or user and only by that device or user."

The above definition defines which of the terms listed below

• Jitter

• Accuracy

• Delivery

• Timeliness

"The system must deliver the data precisely. Data that have been altered in transmission and left uncorrected are unusable."

The above definition defines which of the terms listed below

• Jitter

• Accuracy

• Delivery

• Timeliness

"The variation in the packet arrival time, the uneven delay in the delivery of audio or video packets."

The above definition defines which of the terms listed below

• Jitter

• Accuracy

• Delivery

• Timeliness

"The delivery of data as they are produced, in the same order that they are produced, and without significant delay."

The above definition defines which of the terms listed below

• Jitter

• Accuracy

• Delivery

• Timeliness