Which consensus mechanism is known for enabling participants to validate transactions and create new blocks based on the **number of coins they hold** and are willing to stake as collateral?

What type of attack involves creating numerous **fake identities** to gain a disproportionate influence over the network's consensus mechanism?

What feature of smart contracts allows them to **automatically** execute or enforce the terms of an agreement once predetermined conditions are met?

Which type of token is **unique** and **cannot be exchanged on a one-to-one basis** with another token, often used to represent ownership of specific digital or physical assets?

A focused introduction to blockchain fundamentals for beginners, covering essential topics such as what blockchain is, how it works, its structure, hashing, mining, consensus mechanisms, smart contracts, and digital assets. This course removes broader historical and introductory content to streamline your learning experience.

Final Quiz

1. Which consensus mechanism is known for enabling participants to validate transactions and create new blocks based on the number of coins they hold and are willing to stake as collateral?

2. What type of attack involves creating numerous fake identities to gain a disproportionate influence over the network's consensus mechanism?

3. What feature of smart contracts allows them to automatically execute or enforce the terms of an agreement once predetermined conditions are met?

4. Which type of token is unique and cannot be exchanged on a one-to-one basis with another token, often used to represent ownership of specific digital or physical assets?