ROUND 2

__________ receive verify, gather and execute transactions

• 1. Miner nodes

• 1. Smart Contracts

• 1. Light wallets

• 1. Ethereum full node

What algorithm does the Bitcoin blockchain use?

• SHA256

• PLA196

• CB2187

• THX1138

 What do we mean to say by "mining Bitcoins"?

• A clearing transaction of Bitcoins

• A creation of Bitcoins in each block

• A change in the money supply of Bitcoins

• All of the above

BATM stands for _____

• Batman

• 1. Bitcoin ATM

• 1. Blockchain ATM

• 1. Bounded access transaction machine

Smart Contract characteristics do not include

• 1. Alterable

• 1. Fast and cost-effective

• 1. A high degree of accuracy

• 1. Transparency

A popular public-private key implementation known as Rivest-Shamir Adelman (RSA) algorithm is used for the Bitcoin and Ethereum Blockchain

• TRUE

• FALSE

What type of hash is used when there is a fixed number of items to be hashed, such as the items in a block header, and we are verifying the composite block integrity?

• 1. Tree-structured Hash

• 1. Complex hash

• 1. Simple Hash

• 1. Either

Hash identifying each block in the blockchain is generated using which of the following cryptographic algorithm?

• 1. SHA128

• 1. SHA256

• 1. Both of them

• 1. None of them

How often does the Bitcoin ledger reconcile?

• 1. Every day

• 1. Every 3 months

• 1. Every 3 minutes

• 1. Every 10 minutes

What is a smart contract?

• 1. Programs stored on a blockchain that run when predetermined conditions are met

• 1. Online contract

• 1. Digital contract

• 1. All the above