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WorksheetsComputer Networks
Total questions: 30
Worksheet time: 15mins
What is a network protocol?
Lets you connect to a device
Agreed way of transferring files between devices on a network
Agreed way of sending emails on a network
Agreed way of checking files for errors
Fibre optic cables consist of very fine strands of glass or plastic fibre; transmitting data via
magnetic pulses
light pulses
electricity
Which cable sends data as light?
Copper
Fibre Optic
Ethernet
The basic advantages of the computer network is
Hacking
easy to communicate
network down
The "bit rate" measures ....
the server speed
the cable speed
the network speed
Megabits per second (Mbps) refers to a speed of ....
a million bits per second
a hundred bits per second
a thousand bits per second
a thousand million bits per second
This term describes how much data can be transferred over a connection in a given time.
Transmission media
Contention ratio
Bandwidth
Bandwidth is about the speed the data is transmitted.
False
True
The number of users on a network can affect the network performance
True
False
...... can be used to try and reduce interference
Wider cables
Shielded cables
Shorter cables
This device connects a network to the internet.
A CPU
A switch
A modem
A printer
B: Wireless
B: Invisible
B: Radio Signal
B: WiFi
Select 3 reasons for using a network
Increased security - user access to the network is controlled
Data transfer can be controlled
Sharing resources and devices
Centralisation of data
Computer devices attached to a network are called _______________.
Nodes
Hub
Server
Data
A school wants to set up a network for their students, and staff. What will be the requirements of setting up a network in School?
Hardware
Software
Cables
All of above
There are two types of copper cables (select 2)
coaxial cable
single cable
twisted-paired
fiber optic cable
bps stands for :
bits per second
bytes per second
band per second
Twisting in a twisted-pair help reduce the __________.
length
cost
noise
None of the choices are correct
Match the picture to the transmission media
coaxial cable
fibre optic
twisted pair
which are the three phase of circuit switching
Connection termination
Connection establishment
Data Encode
Data transfer
which is the most secure switching method
circuit switching
packet switching
message switching
There can be multiple paths from sender to receiver
True
False
Bit rate
baud rate* no.of bps
no of bps/ baud rate
baud rate/ no. of bits per sec
multi-drop connection is one in which more than two device share
several link
double link
single link
Which mode can transmit and receive data simultaneously
half duplex
full duplex
simplex
_______ refers to the variation in packet arrival time
Timeliness
Bit rate
Jitter
guided media
Twisted pair cable
Radio wave
satellite
Infrared wave
Deciding which route is best for communication
Data flow
switching
multi drop
media
Identify the components of data communication
Sender,Receiver and Message
Sender,Receiver, medium and Message
Sender, Receiver, Message, Medium and protocol
