BDP301 UPDATED ACTUAL Exam
Questions and CORRECT Answers
Did Bitcoin enable a centralized or a decentralized system for exchange of value?
Centralized
Decentralized - CORRECT ANSWER - Decentralized
Validation, Verification, Immutable Recording, and _____ lead to Trust and Security.
Coins
Tokens
Algorithms
Consensus - CORRECT ANSWER - Consensus
Who introduced the digital online cryptocurrency known as Bitcoin?
Satoshi Nakamoto
Hal Finney
Nick Szabo
Wei Dai - CORRECT ANSWER - Satoshi Nakamoto
A blockchain enables peer-to-peer transfer of digital currency without any intermediaries such as
bank. True or False?
TRUE
FALSE - CORRECT ANSWER - TRUE
Blockchain was created to support security and trust in a ___________ environment of the
cryptocurrency Bitcoin.
decentralized trustless
centralized trusted
,centralized trustless
decentralized trusted - CORRECT ANSWER - decentralized trustless
A block in a Blockchain has a header and _______________.
Inputs
Transactions
Digital Ledger
Bitcoins - CORRECT ANSWER - Transactions
What does UTXO stand for?
Unique Transaction Offer
Unspent Transaction Output
Unspent Trade Offer
Unspent Transaction Xeroxed Output - CORRECT ANSWER - Unspent Transaction
Output
A transaction generates new UTXOs for transferring the amount specified in the input UTXOs.
True or False?
FALSE
TRUE - CORRECT ANSWER - TRUE
Miners are computers that execute ____.
operations defined by the blockchain protocol
operations defined by users
operations defined by transactions - CORRECT ANSWER - operations defined by the
blockchain protocol
The algorithm for consensus in the Bitcoin blockchain is called _____ protocol.
Proof of Work
, Proof of Elapsed Time
Proof of Worth
Proof of Stake - CORRECT ANSWER - Proof of Work
Transaction confirmation is independently performed by all miner nodes. True or False?
FALSE
TRUE - CORRECT ANSWER - TRUE
Transaction 0 in every block in the bitcoin blockchain ____.
is for paying the miner fees.
does not have any input UTXO.
is called the coinbase transaction
All of the above. - CORRECT ANSWER - All of the above.
In a public blockchain, a participant can join and leave the blockchain as and when they wish.
True or False?
FALSE
TRUE - CORRECT ANSWER - TRUE
What allows for the execution of code in the Ethereum Blockchain, while enhancing the basic
value transfer capability of the Bitcoin Blockchain?
Solidity
Ethereum Virtual Machine Proof-of-Work
Byte-code
Smart Contracts - CORRECT ANSWER - Smart Contracts
Solidity has data, functions or methods with modifiers, along with getter and setter functions.
True or False?
FALSE
Questions and CORRECT Answers
Did Bitcoin enable a centralized or a decentralized system for exchange of value?
Centralized
Decentralized - CORRECT ANSWER - Decentralized
Validation, Verification, Immutable Recording, and _____ lead to Trust and Security.
Coins
Tokens
Algorithms
Consensus - CORRECT ANSWER - Consensus
Who introduced the digital online cryptocurrency known as Bitcoin?
Satoshi Nakamoto
Hal Finney
Nick Szabo
Wei Dai - CORRECT ANSWER - Satoshi Nakamoto
A blockchain enables peer-to-peer transfer of digital currency without any intermediaries such as
bank. True or False?
TRUE
FALSE - CORRECT ANSWER - TRUE
Blockchain was created to support security and trust in a ___________ environment of the
cryptocurrency Bitcoin.
decentralized trustless
centralized trusted
,centralized trustless
decentralized trusted - CORRECT ANSWER - decentralized trustless
A block in a Blockchain has a header and _______________.
Inputs
Transactions
Digital Ledger
Bitcoins - CORRECT ANSWER - Transactions
What does UTXO stand for?
Unique Transaction Offer
Unspent Transaction Output
Unspent Trade Offer
Unspent Transaction Xeroxed Output - CORRECT ANSWER - Unspent Transaction
Output
A transaction generates new UTXOs for transferring the amount specified in the input UTXOs.
True or False?
FALSE
TRUE - CORRECT ANSWER - TRUE
Miners are computers that execute ____.
operations defined by the blockchain protocol
operations defined by users
operations defined by transactions - CORRECT ANSWER - operations defined by the
blockchain protocol
The algorithm for consensus in the Bitcoin blockchain is called _____ protocol.
Proof of Work
, Proof of Elapsed Time
Proof of Worth
Proof of Stake - CORRECT ANSWER - Proof of Work
Transaction confirmation is independently performed by all miner nodes. True or False?
FALSE
TRUE - CORRECT ANSWER - TRUE
Transaction 0 in every block in the bitcoin blockchain ____.
is for paying the miner fees.
does not have any input UTXO.
is called the coinbase transaction
All of the above. - CORRECT ANSWER - All of the above.
In a public blockchain, a participant can join and leave the blockchain as and when they wish.
True or False?
FALSE
TRUE - CORRECT ANSWER - TRUE
What allows for the execution of code in the Ethereum Blockchain, while enhancing the basic
value transfer capability of the Bitcoin Blockchain?
Solidity
Ethereum Virtual Machine Proof-of-Work
Byte-code
Smart Contracts - CORRECT ANSWER - Smart Contracts
Solidity has data, functions or methods with modifiers, along with getter and setter functions.
True or False?
FALSE
