FREE Blockchain Blockchain Network Architecture Questions and Answers

Question 1

Which component of a blockchain network is responsible for verifying transactions, creating new blocks, and maintaining a copy of the distributed ledger?

Accepted Answer

Full Node

Answer

Light Node

Answer

Miner/Validator

Answer

Wallet

Question 2

A decentralized application (dApp) developer needs to interact with the blockchain network without downloading the entire ledger. Which type of node would be most suitable for this purpose, offering a balance between functionality and resource consumption?

Accepted Answer

Light Node (SPV client)

Answer

Archival Node

Answer

Full Node

Answer

Mining Node

Question 3

In a permissioned blockchain network, what is the primary distinction regarding node participation compared to a public, permissionless network?

Accepted Answer

Nodes require prior authorization or identity verification to join and participate.

Answer

All nodes must be operated by a single central authority.

Answer

Nodes can only process transactions, not validate blocks.

Answer

Nodes are anonymous and cannot be traced.

Question 4

Which of the following best describes the role of a 'block header' in the context of blockchain network architecture?

Accepted Answer

It is a cryptographic summary of the block's contents, including a reference to the previous block and a timestamp.

Answer

It contains the complete list of all transactions within a block.

Answer

It serves as the unique identifier for a specific transaction within the block.

Answer

It defines the smart contract code executed by the block.

Question 5

A blockchain network is designed with a two-tier architecture where some nodes are responsible for high-speed transaction processing and others for final settlement and security. What is this architectural pattern often referred to, and what is its primary benefit?

Accepted Answer

Layer-2 Scaling Solution, improving throughput and reducing mainnet congestion.

Answer

Monolithic Architecture, ensuring maximum decentralization.

Answer

Sharded Architecture, allowing parallel processing of transactions.

Answer

Federated Architecture, enhancing data privacy.

Question 6

In a distributed blockchain network, how do nodes typically communicate with each other to propagate new transactions and blocks?

Accepted Answer

Via direct peer-to-peer (P2P) connections, gossiping information across the network.

Answer

Through a centralized server that broadcasts updates to all nodes.

Answer

By sending emails with block data to registered participants.

Answer

Using satellite communication exclusively for high-speed data transfer.