big data

Question 1

define big data

Answer 1

a large amount of data that can be mined for information

Question 2

define data mining

Answer 2

identifies patterns, trends and makes accurate predictions, often informs forecasting

Question 3

list the 3V’s

Answer 3

VOLUME VARIETY and VELOCITY

Question 4

define volume

Answer 4

amount of data stored by organisations

Question 5

how do organisations use this? and what is volume measured in?

Answer 5

store large amounts of data from diff sources meaning they need larger storage capacity hardware. measured in terabytes

Question 6

define variety

Answer 6

diff types and variables of data

Question 7

how is variety stored? (how can the data be structured?)

Answer 7

now stored in many formats e.g video images, not always stored in text. the data can be structured, semi structured or unstructured

Question 8

define velocity

Answer 8

how fast data can be processed

Question 9

why use more powerful computers?

Answer 9

large volumes of data, need powerful computers to process data faster