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WorksheetsData Communication Part 1
Total questions: 15
Worksheet time: 8mins
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:
(a)
"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
List the five components of a data communications network:
(a)
a protocol which is used as a communication link between two devices.
(a)
is also called Multi-drop configuration
(a)
List the 3 types of bandwidth
(a)
internet is a minimum of 25 Mbps download and 3 Mbps upload speeds
voiceband
broadband
narrowband
