VinuBRAIN Challenge

VinuChain's DAG infrastructure facilitates _______ transactions.

• fast and reliable

• insecure and slow

• unstable and costly

• secure and efficient

Answer explanation

The VinuChain's DAG infrastructure facilitates fast and reliable transactions, making them secure and efficient.

What consensus mechanism does VinuChain utilize?

• Lachesis protocol

• Consensus protocol

• Agreement protocol

• Handshake protocol

Answer explanation

VinuChain utilizes the Lachesis protocol as its consensus mechanism.

What role does the Quota System play in VinuChain?

• Enables feeless transactions for stakers

• Provides customer support

• Tracks user activity on the platform

• Manages user authentication

Answer explanation

The Quota System enables feeless transactions for stakers in VinuChain, making it a key feature of the platform.

What does consensus in a decentralized system aim to achieve?

• Centralization

• Agreement on a single truth, the blockchain

• Manipulation by bad actors

• Unreliable transactions

Answer explanation

Consensus in a decentralized system aims to achieve agreement on a single truth, which is the blockchain. This ensures trust and reliability in the system.

What does pBFT help decentralized systems to overcome?

• High energy consumption

• Slow transaction speed

• Attacks by bad actors

• Lack of consensus

Answer explanation

pBFT helps decentralized systems to overcome attacks by bad actors by providing a mechanism for Byzantine fault tolerance and ensuring security against malicious participants.

How do nodes reach consensus in aBFT?

• Independently and asynchronously

• By waiting for each other sequentially

• Through centralized coordination

• By performing energy-intensive computations

Answer explanation

Nodes in aBFT reach consensus independently and asynchronously, without waiting for each other sequentially or relying on centralized coordination.

What is the main advantage of DAG in organizing transactions?

• Sequential order

• Decentralized control

• Non-linear structure

• High energy efficiency

Answer explanation

The main advantage of DAG in organizing transactions is its non-linear structure, allowing for more efficient and flexible transaction processing.

What innovative technologies does Lachesis combine?

• Proof-of-work and centralized control

• DAG, aBFT, and Proof-of-stake

• Oil-fracking and energy-intensive computations

• Centralized coordination and sequential block addition

Answer explanation

Lachesis combines DAG, aBFT, and Proof-of-stake technologies.

How does proof-of-stake ensure validators act honestly?

• By rewarding them with energy-intensive computations

• By punishing them with loss of tokens if they misbehave

• By centralizing control of the network

• By allowing them to manipulate transactions freely

Answer explanation

By punishing them with loss of tokens if they misbehave

What is the main purpose of VinuChain's Quota System?

• Encouraging token trading

• Providing free transactions through incentivized staking

• Limiting access to the network

• Increasing gas fees for transactions

Answer explanation

The main purpose of VinuChain's Quota System is to provide free transactions through incentivized staking, encouraging users to stake tokens in exchange for transaction fee waivers.