Introducing Networks Flashcards
The basics of computer networks
Definition of a network
Two or more devices connected to each other.
Is centralisation of data an advantage or a disadvantage of networks?
Advantage
What are the other 6 advantages of networking?
Fast efficient communications Sharing of hardware Sharing of files/data flexible access Leisure Increased control and security
What are the 6 disadvantages of networking?
Users must learn to be protective about their data
Networks can be expensive to set up
There are additional security risks (more people, more access points)
Malware spreads quickly
Faults can be disruptive to many or all users
A fault on central data can cause a loss of everyone
What is a server?
More powerful central computer that provides shared resources to the network and or controls the network.
Which is the smaller of these two?
PAN
HAN
PAN
Is a computer or a printer called a node on a network?
True
What is needed to set up a small network?
NIC (Network Interface Controller)
NOS (Network Operating System)
Connection method (cables or wifi)
What is a switch?
Device that allows users to connect a number of computers to a network.
What is a router?
Device that connects one of more computers to the Internet
Is Windows 10 a NOS?
Yes
What are the two common types of cables?
Unshielded or Shielded Twisted Pair (UTP or STP)
Fibre Optic cable
What are the two main wired connections to the Internet currently used in South Africa?
ADSL
Fibre
What are the two main wireless connections to the Internet currently used in South Africa
Cellular
Mibre Wimax
Satelllite
What does ISP stand for?
Internet Service Provider
