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Add uncategorised page for those things I can't give a category

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junv
2018-06-12 13:01:02 +10:00
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_sidebar.md
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- [Incident Management](categories/devops/incident.md)
- [Web](categories/web.md)
- [Success Team Work](categories/team-work.md)
- [Uncategorised](categories/uncategorised.md)
- English
- [Business English Speaking for Professionals](categories/english/business-spoken-english.md)
categories/uncategorised.md
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# Uncategorised
## Some interesting questions
### UUID or UUID4
* `UUID` use current time and your computer MAC address to generate the id
* `UUID4` which is much simpler. Each and every bit of a UUID v4 is generated randomly and with no inherent logic. With the sheer number of possible combinations (2^128), it would be almost impossible to generate a duplicate unless you are generating trillions of IDs every second, for many years.