WorksheetsCommunication & Network
Total questions: 25
Worksheet time: 13mins
Data Communication is a _________________
collect ideas between users
process of exchanging data / information
device used for communiation
None of the above
communicating devices must be part of a communication system made up of a combination of ____________
hardware and software
data and information
text, images and sound
None of the above
The effectiveness of a data communications system depends on its fundamental characteristics:
Speed, delivery, exact
delivery, exact, fast and jitter
delivery, accuracy, timeliness, and jitter.
None of the above
The components of Data comunications:
Sender, receiver, transmission media, data, information
Message, Sender, Receiver, Transmission Medium and Protocol
Sender, receiver, transmission channel, data, information
None of the above
One of the protocol's function is Data sequencing. It refers to _________
breaking a long message into smaller packets of fixed size.
the most efficient path between the source and destination.
resource sharing and protection against traffic congestion
None of the above
One of the protocol's function is Data routing. It refers to _________
breaking a long message into smaller packets of fixed size.
the most efficient path between the source and destination.
resource sharing and protection against traffic congestion
None of the above
One of the protocol's function is Flow control. It refers to _________
breaking a long message into smaller packets of fixed size.
the most efficient path between the source and destination.
prevents a fast sender from overwhelming a slow receiver
None of the above
Below are the elements of Communication Model:
Source, transmitter, communications medium, receiver and end user
Source, transmitter, communications medium, receiver and destination
Source, transmitter, communications medium, receiver and final receiver
None of the above
A network is a ______________
collection of devices that share the same resources
collection of computer connected together via communication devices
collection of computers and devices connected together via communication devices and transmission media
None of the above
A local area network (LAN) is ______________
a network that connects computers and devices in a limited geographical area
a network that connects computers and devices in a metropolitan area
a network that connects computers and devices in a large geographical area
All of the above
A Wide area network (WAN) is ______________
a network that connects computers and devices in a limited geographical area
a network that connects computers and devices in a metropolitan area
a network that connects computers and devices in a large geographical area
All of the above
A MAN is ______________
a network that connects computers and devices in a limited geographical area
a network that connects devices in a larger area than WAN
connects LANs in a metropolitan area
All of the above
A PAN is ______________
a network that connects computers and devices in a limited geographical area
is a network that connects devices in an individual’s workspace with wired and wireless technology
connects LANs in a metropolitan area
All of the above
In peer-to-peer network, __________________
all clients must request service from the server
Each device doesn't have equal responsibilities, capacities, sharing hardware, data, with the other computers on the peer-to-peer network
Each device has equal responsibilities, capacities, sharing hardware, data, with the other computers on the peer-to-peer network
None of the above
In Client/server network, __________________
all clients must request service from the server
Each device doesn't have equal responsibilities, capacities, sharing hardware, data, with the other computers on the peer-to-peer network
Each device has equal responsibilities, capacities, sharing hardware, data, with the other computers on the peer-to-peer network
None of the above
Network topology refers to the
types of devices used on network
layout of the computers and devices in a communications network
the responsibilities of each device in the network
All of the above
BUS networks is ___________
number of computers are connected on a closed loop
connecting all devices to a central unit
Single central cable connected a number of devices
None of the above
RING networks is ___________
number of computers are connected on a closed loop
connecting all devices to a central unit
Single central cable connected a number of devices
None of the above
STAR networks is ___________
number of computers are connected on a closed loop
connecting all devices to a central unit (hub)
Single central cable connected a number of devices
None of the above
Bluetooth uses
Infrared (IR) light waves
radio frequency
Infrared (IR) light waves and radio frequency
None of the above
RFID uses
Infrared (IR) light waves
radio frequency identification
Infrared (IR) light waves and radio frequency identification
None of the above
IrDA uses
Infrared (IR) light waves
radio frequency identification
Infrared (IR) light waves and radio frequency identification
None of the above
Zigbee uses
high level communication protocols using small, low-power digital radios based on the IEEE 802.15.4
radio frequency identification
Infrared (IR) light waves and radio frequency identification
None of the above
Wireless personal area network (WPAN) uses
a form of technology that allows for speech communication via the Internet.
network technologies such as IrDA, Bluetooth, UWB, Z-Wave and ZigBee
Infrared (IR) light waves
None of the above
VoIP (Voice over Internet Protocol) uses
a form of technology that allows for speech communication via the Internet.
network technologies such as IrDA, Bluetooth, UWB, Z-Wave and ZigBee
Infrared (IR) light waves
None of the above
