Cryptocurrency

What is a property specific to cryptographic hash functions?

• Input can be of any size

• Uses blockchain based technology

• Collision resistance

• None of the above

Which of these features are supported by blockchain technology? Select all that apply.

• Distributed Peer to Peer Network

• Centralization

• Immutable Ledger

• Mining

What do miners do?

• Go in caves to dig up rocks and gems

• Calculate the correct hash of the next block in a blockchain

• Reverse engineer the hash of a block to find private keys

• Create and maintain the programs needed for blockchain technology

Which of these is used in bulk to more quickly mine cryptocurrency?

• CPU

• GPU

• Motherboard

• Router

Each block of a Blockchain consists of which of the following?

• A hash pointer to the previous block

• Timestamp

• List of transactions

• All of the above

Which feature is not supported by Blockchain Technology

• Distributed Peer to Peer Network

• Centralized Network

• Immutable Ledger

• Mining

What is cryptography?

• The study/science of maps

• The study/science of money

• The study/science of scrambling data into code

• The study/science of burial chambers

How does a computer mine a bitcoin?

• Successfully generate a hash so that the block can be added to the blockchain

• Successfully decrypt a block

• Steve uses the diamond pickaxe

• Successfully determine the origin of a trnasaction

Why all participants/nodes in the peer-to-peer network need to validate the transaction?

• Due to its distributed structure and consensus driven mechanism

• Due to its non distributed structure and lack of consensus driven mechanism

• None