---
# System prepended metadata

title: Questions
tags: [scalability, zero knowledge, L2, cosmos, modularity]

---

1. Suppose I don't understamd blockchain, crypto, zero knowledge proofs. Zero Knowledge vaneko k ho vanera kasari bujhauchau?

2. Tyo video ma euta path vitra ko key cha ki nai wala example cha ni suru ma. Can you give me any other example, tyo bahek, zero knowledge ko.

3. What are prover and verifier?
	- Prover generates the proof for verifier to verify that my statement is actually correct.
	- Verifier verifies that the proof generated by prover is indeed correct.

4. Are Zero knowledge and  block chain related? Why do think zero knowledge has gained popularity in blockchain field?
	- Verifer contract can be deployed on the blockchain, and there is no way to tamper with that contract. 
	- So, we can assure that the verification logic cannot be faked.

5. advancements in zk has been extremely rapid. Can you name some? 
	- Processors designed to do zk proofs being made. (like processors designed just to mine bitcoin)

6. more use cases where zero knowledge can be used?
	- zkML
	- voting
	- identity

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1. what do you mean by scalability in blockchains?
	- handle all transcactions, provide availability while being decentralized
	= consensus
	= availability [data storage]
	= transactions

2. modularity/scalaboility trilemma on blockchain?
	- Security, Decentralization and Scalability

3. what are layer 2 chains? why are they needed
	- chains on top of l1s
	- scalable, cheaper
	- can make custom chains, that are specific for our use case, which is not possible in general chains [defi kingdoms]

4. what is cosmos chain? does it do anything other than what ethereum offers?
	- use cosmos sdk to build you own chain, based on your requirements easily

5. what is modularity in blockchain?
	- different layers equired on chain lai separate out garne, so that it can be more scalable

6. difference between modular and monolithic blockchain
	- monolithic: regular chains, 2/3 handled
	- modular: tries to solve all 2 trilemmas

	+ sharding in ETH after POS upgrade

    - Reference:
        -  https://www.youtube.com/watch?v=m0BpeUpgBu4