# Quiz 2

What are the two fundamental uses of hash functions? (Choose all that apply)

**Add answers and select the correct ones**

* [x] Maintaining data integrity
* [x] Data storage and access efficiency
* [ ] Encrypting messages
* [ ] Reversing digital fingerprints<br>

**Note to learners**

The two fundamental uses of hash functions are: maintaining data integrity, and data storage & access efficiency.<br>

To learn more about it, you can follow the course [What are Hash functions?](https://bsvblockchain.360learning.com/course/play/68b55339580a65662452b269)


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