Multiple choice › Big data and web architecture
Big data and web architecture
1. Big data and web architecture
Metadata is best described as:
- Data about other data, such as the time and location a photo was taken
- Very large data sets
- Data stored only in the cloud
- Data that has been encrypted
Answer
A
Metadata describes data (author, date, size, location). Data mining is a separate idea: finding patterns in large data sets.
2. Big data and web architecture
Data mining is:
- Encrypting data for storage
- Copying data between servers
- Analysing large data sets to discover patterns and relationships
- Deleting old data from a database
Answer
C
Data mining extracts patterns (e.g. buying habits) from big data using statistics and machine learning.