# AUCTF 2020 – Web 1
* **Category:** trivia* **Points:** 50
## Challenge
> These properties are important to guarantee valid transactions within a database?> > NOTE: The flag is NOT in the standard auctf{} format> > flag format - list all properties in comma separated list 1, 2, 3,...> > Author: FireKing
## Solution
```Atomicity, Consistency, Isolation, Durability```