The Second Era of the Internetb

The Second Era of the Internet >> Introduction to Blockchain Technologies

We can’t reliably establish one another’s identities online without a third party.

Powerful intermediaries collect our data and invade our privacy.

The economic benefits of the Internet have been asymmetrical.

All of the above ✓

Correct: All of these represent limitations of the Internet for business and economic activity.

Bitcoin and blockchain mean the same thing and these terms can be used interchangeably.

A blockchain requires bitcoin in order to operate.

Blockchain is a specific type of cryptocurrency, whereas bitcoin is the protocol that underlies all cryptocurrencies and other kinds of crypto-assets.

Bitcoin represents the first implementation of a blockchain protocol. ✓

It represents the first distributed system for peer-to-peer exchange.

It represents the first online implementation of cryptography.

It represents the first system for digital cash.

None of the above ✓

A distributed ledger is a specific type of blockchain.

A blockchain is a specific type of distributed ledger. ✓

A distributed ledger records transactions on a peer-to-peer network, whereas a blockchain records transactions on a centralized server

A blockchain records transactions on a peer-to-peer network, whereas a distributed ledger records transactions on a centralized server

Correct: A blockchain is a specific type of distributed ledger, just as a square is a specific type of rectangle.

Transactions

Miners ✓

Nonce

Previous block hash

Correct: Miners create blocks, but are not themselves part of a block.

The Second Era of the Internet >> Introduction to Blockchain Technologies

Related Questions & Answers: