IT Flashcards
What is a network?
a network consists of 2 or more computers that are linked in order to share resources.
Give 2 advantage of using a network.
allows people to share resources and expensive devices, connects individuals to friends, family and colleagues who are located in a different
region, province or even country.
Give 2 disadvantages of using a network.
can expose you to online crimes such as, ; scams and email phishing, can be addictive and waste large amounts of time.
What are communications?
Electronic communication is any data or information exchanged electronically
Give 2 advantages of communication.
Provides a written record of a communication, which is available for a
long time, Is inexpensive to send and receive email messages.
Give 2 disadvantages of communication.
Email attachments can be used to spread viruses, Spam is a big problem.
what is a PAN?
A personal area network covers a very small area.
What is a HAN?
A home area network is a computer network that covers a larger area
like your home.
What is a LAN?
A local area network covers a larger area like an office or a bigger
premises.
What is a WAN?
A wide area network covers a very large area – that could include all the people
in a suburb, city or country.
Name 5 types of topology
Tree, Mesh, Star, Bus and Ring
What is mesh Topology?
In a mesh topology, every device is connected to another device via a particular channel.
What is star Topology?
In Star Topology, all the devices are connected to a single hub through a cable.
What is Bus topology?
Bus Topology is a network type in which every computer and network device is connected to a single cable.
What is ring topology?
In a Ring Topology, it forms a ring connecting devices with exactly two neighboring devices.
