WGU D334 Objective Assessment (NEW 2026/ 2027 Update) Introduction to Cryptography Review |Questions & Answers | Grade A| 100% Correct (Verified Solutions)

WGUl D334l Objectivel Assessmentl (NEWl
2026/l 2027l Update)l Introductionl tol
Cryptographyl Reviewl |Questions &
Answers | Grade A| 100% Correct (Verified
Solutions)
QUESTION
Inl Bitcoinl transactions,l al 256-bitl randoml keyl isl convertedl intol al Wifl withl anl addressl
thatl isl inl Base-58l format.l Wherel isl thel WiFl stored?
Bitcoinl wallet
Bitcoinl Exchangel Registryl (BER)
Bitcoinl Vault
Bitcoinl Transferl Registryl (BTR)
Answer:
Bitcoinl wallet


QUESTION
Regardingl cryptol currency,l BTCl isl tol Bitcoinl asl _____l isl tol Ethereum.
Ether
ETT
geth
Gas
Answer:
Ether


QUESTION
Al miningl nodel thatl successfullyl completesl thel creationl ofl al currentl Blockchainl isl
__________.
al classl 1l felon
deductedl bitcoins
rewardedl withl bitcoins
violatingl privacy
Answer:
rewardedl withl bitcoins

,QUESTION
Usel ofl al centralizedl serverl withl Bitcoinl facilitatesl easel ofl managementl ofl transactions.
True
False
Answer:
False


QUESTION
Thel mainl contributionl ofl _______l isl tol createl thel conceptl ofl peer-to-peerl smartl
contractsl whichl enablesl usersl tol createl theirl ownl contracts,l andl whichl willl bel strictlyl
abidedl to.
Bitcoin
Cryptkash
Solidity
Ethereum
Answer:
Ethereum


QUESTION
Withl regardl tol Bitcoins,l thel ______l refersl tol thel firstl transactionl created.
cryptol currency
genesisl record
Blockchain
cryptol currencyl source
Answer:
genesisl record


QUESTION
Ethereuml wasl createdl byl Vitalikl Buterininl inl 2015l andl wasl builtl onl thel
Bitcoin/Blockchainl conceptl butl includedl whichl additionall concept?
transactions
cryptol currency
smartl contracts
Cryptography
Answer:
smartl contracts

,QUESTION
Whatl isl thel hashl value,l inl bits,l producedl byl thel Keccakl algorithml usedl inl Ethereuml
gasl calculations?
512
128
256
1024
Answer:
256


QUESTION
Al bitcoinl transactionl inl simplestl termsl consistsl ofl anl ownerl ofl bitcoinl transferringl
ownershipl tol anotherl party.l Validl transactionsl arel capturedl byl ______l whol willl hash,l
compile,l andl eventuallyl integratel thel minedl blockl intol al blockchainl networkl ifl legit.
bankers
hackers
miners
ADMINs
Answer:
miners


QUESTION
Bitcoinsl generatel al 256-bitl randoml keyl whichl isl convertedl intol al ______l key,l andl
whichl hasl al 256-bitl privatel keyl andl al 512-bitl publicl key.
shared
TOR
Wif
Pseudo-random
Answer:
Wif


QUESTION
Thel majorl differencel betweenl Hyperledgerl andl Ethereuml isl thatl Hyperledgerl doesl notl
offerl thel smartl contractsl feature.
False
True
Answer:
false

, QUESTION
Thel highl rewardl thatl comesl withl successfull cryptol miningl makesl itl highlyl competitive.l
Whatl aspectl makesl thel processl challengingl andl limitsl thosel inl contention.
labl spacel required
computingl powerl required
mathl calculationsl required
insiderl tradingl knowledgel required
Answer:
computingl powerl required


QUESTION
Whatl aspectl ofl al givenl Ethereuml transactionl mayl detractl al cryptol currencyl minerl froml
pursuingl it?
lowl fee
gasl creep
highl fee
etherl creep
Answer:
lowl fee


QUESTION
Inl comparingl publicl andl privatel blockchainl implementations,l whichl offersl thel bestl levell
ofl trustl andl security?
Private
Public
Answer:
Public


QUESTION
Whatl describesl thel unitl thatl isl usedl tol measurel thel amountl ofl workl thatl isl requiredl tol
performl al singlel Keccak-256l hashl whenl dealingl withl Ethereum?
Gas
Bytes
Workl Factor
Ether
Answer:
Gas