Blockchain Developer Certification Practice

Can a single Ethereum account interact with multiple Ethereum networks?

1. No, each account is network-specific

2. Yes, accounts are decoupled from networks

3. Only if the networks are interconnected

4. Only using additional software

The correct answer is: Yes, accounts are decoupled from networks

The assertion that a single Ethereum account can interact with multiple Ethereum networks is accurate because accounts in Ethereum are designed to be independent of the underlying network they reside on. In Ethereum, an account is identified by its address, which is derived from its public key. This means that the same account can exist on different Ethereum networks, such as the Ethereum mainnet, Ropsten, Rinkeby, or other Ethereum-compatible chains. Since Ethereum accounts operate based on a unique hexadecimal address, the functionality and assets within an account are contingent on the network it is connected to. However, the account's identity remains consistent across these networks, allowing users to use the same public/private key pair to interact with different Ethereum networks. This capability enables developers and users to seamlessly switch between various testnets and mainnets without the need to create separate accounts for each network. Other options misrepresent how Ethereum accounts function. For instance, saying accounts are network-specific implies there is an intrinsic limitation tied to individual networks, which is not the case. The distinction between interconnected networks would also suggest that isolation is necessary for account usage, which overlooks the fundamental principle of how Ethereum account addresses operate independently of network restrictions. Additionally, the idea that additional software is required to interact across various networks is