Ether-eal Knowledge: How Well Do You Know Ethereum?

What are the differences between Bitcoin and Ethereum?
The underlying tokens: Bitcoin vs. Ether
Smart contract support
UTXO vs. Accounts
All of the above
During the conception of Ethereum, how many Ether were created?
21 million
21 billion
71 million
72 million
What is gas in the Ethereum context?
The computational resources required to perform transactions
The security level of the Ethereum network
The gas produced by Ethereum servers
The required cost to perform a transaction on the network
The high-level languages typically used for writing Ethereum smart contracts are
Go
C++
Vyper
Solidity
How do Ethereum nodes talk to each other?
Peer-to-Peer Network
Client-Server Network
Satellite Network
LAN Network
The length of addresses on Ethereum is
256 bits
20 bytes
Depends on the externally-owned-account or contract address
Configurable
Security Audits for smart contracts are performed because
They are required for listing a DApp on the DApp store
They are required for deployment on Ethereum
They help remove vulnerabilities and reduce risk
They are required by exchanges to list tokens
The number of transactions in a Ethereum block depend on
Nothing. It is a constant
Gas used by transactions
Block gas limit
Block difficulty
The gas tracking website https://etherscan.io/gastracker says that the low gas cost is 40 gwei. This affects
The transaction gas price
The transaction gas limit
The transaction value
Both B & C
Security of Ethereum DApps depend on the
Security of their smart contracts
Security of their off-chain components
Security of Ethereum
All of the above
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