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Level 1 - Blockchain Technology

1 / 10

Which of the following is not a decentralized/public blockchain network?

2 / 10

What is the core problem that blockchain solves?

3 / 10

What is the purpose of a merkle tree in a blockchain?

4 / 10

What is the unique identifier for a block in a blockchain called?

5 / 10

Which of the following is a layer 1 blockchain platform/network?

6 / 10

What type of digital ledger and database is blockchain technology?

7 / 10

Which of the following best describes a "block" in a blockchain?

8 / 10

Which of the following is NOT a consensus mechanism used in typical blockchain networks?

9 / 10

Which of the following represent the bedrock principles of a public blockchain?

10 / 10

Nonces in ____  network are used to create unique identifiers for transactions to prevent double-spending/replay attacks but are NOT used to determine the selection of validators.

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