M8b: Blockchain

distributed computing

What processes and manages algorithms across many machines in a computing environment? a) distributed computing b) extraction, transformation, and loading c) information cleansing

ledger

What records classified and summarized transactional data? a) ledger b) data cube c) bitcoin d) blockchain

work

Proof-of-_________ is a requirement to define an expensive computer calculation, also called mining, that needs to be performed in order to create a new group of trustless transactions on the distributed ledger or blockchain. a) stake b) work c) decision

blocks

A blockchain is formed by linking together ___________, data structures containing a hash, previous hash, and data. a) genesis blocks b) cubes c) blocks

hash

A(n) _____ is a function that converts an input of letters and numbers into an encrypted output of a fixed length a) hash b) genesis block c) block d) previous hash

blockchain

A(n) _________ is a type of distributed ledger, consisting of blocks of data that maintain a permanent and tamper-proof record of transactional data. a) key b) blockchain c) hash d) proof-of-work

proof-of-work

What is a requirement to define an expensive computer calculation, also called mining, that needs to be performed in order to create a new group of trustless transactions on the distributed ledger or blockchain? a) proof-of-stake b) bitcoin c) proof-of-work

bitcoin

What is a type of digital currency in which a record of transactions is maintained and new units of currency are generated by the computational solution of mathematical problems and which operates independently of a central bank? a) bitcoin b) ledger c) proof-of-work

blockchain

What is formed by linking together blocks, data structures containing a hash, previous hash, and data? a) cubes b) blockchain c) genesis blocks d) hash

immutability

What is the ability for a blockchain ledger to remain a permanent, indelible, and unalterable history of transactions? a) distributed ledger b) immutability c) bitcoin

immutable

What simply means unchangeable? a) proof-of-work b) immutable c) proof-of-stake

distributed

__________ computing processes and manages algorithms across many machines in a computing environment. a) distributed b) volume c) virtualization