Quiz1_22EM205

Blockchain is a peer-to-peer _____________ distributed ledger technology that makes the records of any digital asset transparent and unchangeable.

Blockchain networks are much _____ and deal with no real single point of failure.

• Simple

• easy to scale

• Convinient

• faster

What is a Blockchain

• A type of programming language

• A distributed decentralized digital ledger

• An encryption algorithm used in cybersecurity

• A hardware component in computer system

What does P2P stand for?

• 1. Peer to Peer

• 1. Product to Product

• 1. Password to Password

• 1. None of the above

What does a block in a Blockchain have?

• 1. Header & Transaction

• 1. Transactions & Bitcoins

• 1. Header & Digital ledger

• 1. Bitcoins & Input

What is the genesis block?

• 1. Any block created by the founder

• 1. The last block created in the Blockchain

• 1. The first transaction in each block

• 1. The first block of a Blockchain

What is the purpose of cryptographic hashing in blockchain technology?

• To encrypt data stored in blockchain

• To insure integrity of data stored on the blockchain

• To control access to the blockchain

• To facilitate transaction in the blockchain

___ hosts the software needed for transaction initiation, validation, mining, block creation,

__________ receive verify, gather and execute transactions.

How are transactions added to a blockchain?

• By a central authority

• Through a democratic voting system

• By solving complex mathematic problem

• By performing smart contracts