Blockchain and Voting Lesson 3

What is a key benefit of using a blockchain-based voting system?

• Lower voter turnout rates.

• Increased costs for election administration.

• Limited access for remote voters.

• Increased security and transparency.

How does a blockchain ensure the security of votes?

• Votes are encrypted and stored on paper for security.

• Votes are stored in a central database for easy access.

• Blockchain uses a single point of control to manage votes.

• Blockchain ensures the security of votes by providing a decentralized, immutable, and cryptographically secure ledger.

What must happen for a block to be added to the blockchain?

• The block must be stored on a central server.

• The block must contain only empty transactions.

• The block must be created by a single user.

• The block must be validated and accepted by the network.

What does the term 'majority of nodes' refer to in a blockchain?

• Less than half of the participating nodes in the network.

• Exactly half of the participating nodes in the network.

• More than half of the participating nodes in the network.

• All nodes in the network regardless of participation.

How does the number of nodes affect the security of a blockchain?

• More nodes decrease security by centralizing control.

• The number of nodes has no impact on security.

• More nodes increase security by enhancing decentralization and making attacks more difficult.

• Fewer nodes make the blockchain more secure.

What role do nodes play in a distributed voting system?

• Nodes serve as observers without any voting power.

• Nodes are responsible for counting votes in a centralized manner.

• Nodes act as participants that cast and validate votes, ensuring decentralization and security.

• Nodes only store the votes without participating in the process.

Why is it difficult to change votes that are already on the blockchain?

• It is difficult to change votes on the blockchain because they are immutable and cryptographically secured, requiring consensus to alter.

• Blockchain technology allows for unlimited changes to votes.

• Votes are stored in a central database that can be modified easily.

• Votes can be easily changed by anyone on the blockchain.

In a blockchain network, how are transactions verified?

• Transactions are verified by a central authority approving each transaction.

• Transactions are verified through consensus mechanisms by nodes validating transaction details.

• Transactions are verified through random selection of nodes without any consensus.

• Transactions are verified by users manually checking each transaction detail.

What is the difference between the majority of nodes and the majority of voters?

• The majority of nodes is about agreement in a network, while the majority of voters is about participation in a voting process.

• The majority of nodes refers to the total number of participants in a network.

• The majority of voters is determined by the number of nodes in a system.

• The majority of nodes is about the total votes cast in an election.

Why is neutrality important for nodes in a voting system?

• Neutrality is irrelevant to the voting process.

• Neutrality ensures that only certain votes are counted.

• Neutrality allows nodes to influence the outcome of votes.

• Neutrality is important for ensuring fairness and trust in the voting process.