Test Your Knowledge about Blockchain

What is Blockchain?

• A centralized database

• A networking protocol

• A decentralized ledger

• A type of database

Which of the following is a key feature of blockchain?

• Immutability

• Dependence on a single server

• High centralization

• Insecure data transfer

Which is the first cryptocurrency to use blockchain technology?

• Ethereum

• Bitcoin

• Litecoin

• Ripple

What is the primary purpose of blockchain technology?

• To centralize data storage

• To create cryptocurrencies

• To replace all traditional databases

• To provide a secure and transparent record of transactions

What is the main component of a blockchain that contains transaction data?

• Chain

• Node

• Block

• Hash

What type of network structure does blockchain use?

• Ring topology

• Peer-to-peer (P2P)

• Star topology

• Client-server

What is a full node in blockchain?

• A node used for mining rewards

• A node that stores the entire blockchain ledger

• A node that processes only recent transactions

• A node responsible for creating new blocks

How does blockchain benefit the healthcare industry?

• By replacing human doctors with AI

• By creating virtual currencies for medical professionals

• By decentralizing hospital administration

• By managing electronic health records securely

What process is used to create new cryptocurrencies in Bitcoin’s blockchain?

• Tokenization

• Proof of Authority

• Mining

• Proof of Stake

What type of database is blockchain?

• Centralized relational database

• Decentralized ledger

• Distributed cache

• Hierarchical