Please enable JavaScript.
Coggle requires JavaScript to display documents.
1.4 Networks ((Error rates are high for WiFi and low for Ethernet…
-
-
The higher the error rate, the lower the network performance
TASK 1
-
plusnet: Average speed 36Mb, contention ratio 50:1, £23.50 a mth,
-
LAN COPPER CABLING
LAN Copper Cabling also known as Ethernet cables. These cannot be more than 100 m in length and if it is longer it will lose signal and data will not be in range. Twisted copper cable which reduces interference from other computer systems and electrical objects. Most cable networks use it.
-
-
The higher the error rate, the lower the network performance
bandwidth and speed
Bandwidth is the maximum amount of data transmitted and it's very different from speed. It goes from person to person if you had a person downloading a game which needs multiple things coming with it everyone would be slower.
SPEED
Node speed will change depending on what other notes are doing whilst bandwidth does not. SPEED: single network experienced by a user. A speed test will measure the speed efficiency of a computer.
WIFI
WiFi is much slower than Ethernet and it has various access points close to the router. Signal will degrade if it is further away from the main source of emitting data (this means it has a shorter range than any other). Corrupted data has to be reset if it gets interrupted. Connection quality and maximum connection speed is a lot slower than other connection options.
Fiber optic
Fiber optic transmits data as beams of light and this data can be seen being transmitted. It costs a lot of money, being the most expensive type of cable. The data speed however is very fast.
Error rates is how often data gets corrupted when travelling between two points in a network. It can happen a lot more in WiFi than in cable connections.
Data sometimes is corrupted and damaged in transition, by things as simple as walls, microwaves, or even people moving
-
Packets of data get sent between devices with information of services to each server.
Data is transmitted across the internet in packets. The speed at which that packet travels through the internet IS LATENCY.
-
-
The higher the error rate, the lower the network performance
your colleagues can also open files seconds after you put the in the network it also leads to better collaboration
one of the disadvantages of WAN is cost because you need to pay staff to monitor the network. also setting it up you'll need to pay someone to set it up mostly because it depends on how its set up because if its set up using cables it would most likely be under ground so setting it up would be difficult
Wide area networks are really good because they could cover the whole company over quite a distance from town to town to country to country they also sometime use satellites.
the other is a disadvantage is network failure because like i just said if the network uses cables you cant dig them up to figure out whats wrong because its not your property so you have to pay a company to maintain them
-
-
-
-
-