What is the role of the AvalancheGo implementation?

• A. A mobile wallet application.
• B. A blockchain explorer.
• C. A governance dashboard.
• D. The node software that runs the protocol, handles networking, consensus, and blockchain storage.

Answer: (D)

AvalancheGo is the node software that runs the protocol on the Avalanche network. It handles the peer-to-peer networking so nodes can discover and talk to each other, it implements the consensus process that decides which transactions and blocks are valid and when they’re finalized, and it stores the blockchain data for the chains that make up the network. It’s the backbone that validators and full nodes run to participate in the system, and it provides APIs that wallets and other clients use to submit transactions or query state. It’s not a mobile wallet, a blockchain explorer, or a governance dashboard—those are separate tools built on top of the network and interfacing with the node via its APIs.