Blockchain and Ethereum Awareness (Entry Level)

  • 15m
  • 15 questions
The Blockchain and Ethereum Awareness benchmark measures your understanding of Ethereum's characteristics, cryptographic hashing, the role of data miners, and types of Ethereum accounts. You will be evaluated on your knowledge to perform transactions in Ethereum and your understanding of smart contract development. A learner who scores high on this benchmark demonstrates that they have a foundational knowledge of blockchain and Ethereum.

Topics covered

  • define Ethereum-specific terms such as mining, ether, and smart contracts
  • describe the functions of smart contract bytecode, opcodes, and ABI in interacting with a contract
  • describe the need for smart contracts to eliminate the need for a trusted third party in many transactions
  • describe the trie data structure that is used to represent associative arrays and distinguish it from its space-optimized version, the Patricia trie
  • identify the two types of Ethereum accounts - externally owned and contract - and the data that is needed for each of them
  • outline the concept of gas in Ethereum and the role of the gas price and gas limit fields in a transaction
  • outline the proof of work algorithm and the work which miners need to do to claim mining rewards
  • outline the steps involved verifying transactions initiated in the Ethereum network
  • outline the technique of sequencing records by breaking them up into blocks and arranging those blocks in a chain
  • recall the use of the Ethereum state in verifying the sender's Ether balance to ensure they possess the funds being transferred in a transaction
  • recognize the characteristics of the Ethereum blockchain network and how it records transaction data in a transparent and verifiable manner
  • recognize the features of the Truffle framework, Ganache, and Drizzle tools that speed up smart contract development
  • recognize the role of an Ethereum client and list the different Ethereum clients
  • recognize the role of cryptographic hashing in blockchain networks to ensure immutability of transaction data
  • recognize the role of mining nodes in the Ethereum network and the define the concept of gas which is used to measure the complexity of transactions