Network Architecture
Any device in a network (2 words)
> a node, a host
What is a network?
> a network is a group of devices that are connected in such manner that they can share information and resources with each other.
Name 4 main types of networks and what they stand for
> PAN (Personal Area Network), LAN (Local Area Network), MAN (Metropolitan Area Network), WAN (Wide Area Network)
Name 5 basic types of network topology
> point-to-point, star, full mesh, partial mesh, bus
Allows wireless devices to connect to a wired network.
> WAP (Wireless access point)
What does the cloud refer to?
> the cloud refers to servers that are accessed over the Internet, and the software and databases that run on those servers
__ covers a campus or a town and is widely used in cable television networks available in the whole city.
> MAN (Metropolitan Area Network)
What fiber-optic cables are used for?
> fibre-optic cables are used to transfer information to the Internet over long distances at high speed
What is network architecture?(2 types)
> in a client-server network, a computer acts as a server and stores and distributes information to the other nodes or clients. In a peer-to-peer network, all the computers have the same compatibilities - that is, share files and peripherals without requiring a separate server computer.
Name 4 basic components that make up a network
> nodes, media, interfaces, protocols
Network interface is used to connect __ to __.
> the host to the medium.
Name 3 forms of connection between the network devices.
> copper wires (-> electrical signals), fiber-optic cables (->light pulses), wireless (->radio waves)
Which is better: a wired or wireless LAN?
> wired LANs are more difficult to install, but they are cheaper, faster and more reliable. Wireless networks let you move or roam, from one access point to another, but they are less secure and subject to interference.
What is a protocol? Name at least 1. What does it stand for?
> a protocol is a language or set of rules, that computers use to communicate with each other. TCP/IP - Transmission Control Protocol/ Internet Protocol. ADSL - Asymetric Digital Subscriber Line
What does cloud computing enable users to do?
> businesses and users do not have to administer physical servers and launch software applications on their own machines. In the cloud the computing and storage is implemented on servers in a data centre instead of locally on the user device.
How does a network link devices together? How does a signal travel along a communication channel? (pic)
> words that could be used: route; convert; transmit; carry; pass; forward; broadcast; flow; interface