Blockchain

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The three concepts used to explain the foundation of blockchain are 
Ledger, Bitcoins, Digital Identity
Private Blockchain is a de-centralized type of Blockchain?
false
Mainly how many types of blockchains have emerged after bitcoin introduced blockchain to the world?
3
Bitcoin network would make it impossible to bypass the traditional financial intermediaries.
True
Bankchain is an example of 
Pivate
The three concepts used to explain the foundation of blockchain are 
Business Network, Digital Assets, Ledger
Blockchain which is popularly known as ‘for the people, by the people and of the people” is
public blockchain
The two types of cryptography are
 public and private - wrong Symmetric and public-wrong Asymmetric and symetric-Correct
Encrypted text is also known as
Ciphertext
HASH can be used to validate the input?
True
The value of coins ( litecoin, bitcoin) is same at a particular time.
False
Encryption reduces data security?
false
The value of cryptocurrency is independent of market conditions such as supply and demand.
False
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The rate of generation of new bitcoins is constant.
False
Bitcoins can be purchased in exchange of services.
True
The sender and the receiver in a transaction provide miners with a fee.
False
The higher the computational power, the lower is the difficulty in mining.
False
The output of Hashing is popularly known as 
digest
We may use bitcoin for purchasing merchandise as well?
Yes
Which among the following are the advantages of using Bitcoin?
All
The higher the computational power, the lower is the difficulty in mining.
False
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Which platform could gain its best use case from financial service industry?
R3 corda
Which platform could gain its best use case from supply chain industry?
R3 corda -wrong Hyperledger
Ether provides greater flexibility than Bitcoin does.
True
The first smart contract platform is
blockchain-wrong R3 Corda-wrong hyperledger fabric-wrong Ehereum-Correct
Ethereum is a digital currency.
False
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_______ records all the transactions in a blockchain.
Block
Chose the correct options(s).
Hash algorithm takes inputs of any size and produces an output of a fixed size.
China and Russia were amongst the first few countries to promote bitcoin in their economy?
True
is popularly known as DLT with a difference.
ethereum
In asymmetric key cryptography, the private key is kept by
sender
BlockChain provides ___________ database of every transaction involving value.
Open Decentralized
One symbol could be substituted with a key using substitution cipher
True
Bitcoin is an example of which type of blockchain
public
Blockchain could prevent robustness and transparency in the post – trade environment.
true
One bitcoin could be divided down to
8
Currencies other than Bitcoin such as Litecoin and Dash are popularly known as 
altcoins
Hyperledger allows us to customize the visibility of a transaction in a blockchain.
false
Coincap is a budding cryptocurrency
true
There is no cryptographic protocol that can be used to secure HTTP connection
False
Which of the following platform(s) provides a modular architecture?
Hyperledger
Private Blockchain allows organizations who have privacy and compliance regulations to implement Blockchain
true
Both ________ and ________ automatically check your previous transactions to make sure you have enough bitcoins to send.
Wallet and Bitcoin node network
Smart Contracts are reversible
false
Crypto analysis is used ___________
Cryptanalysis is used to breach cryptographic security systems
New bitcoins are released every time a transaction is verified
true
Who is the founder of Hyperledger fabric
linux
Consortium Blockchain provides a faster and more protected ecosystem than a Private Blockchain?
true
Bitcoin is
peer to peer
Ripple is an example of
public blockchain
Blockchain offers identity authentication through a visible ledger and thus have greater potential for cyber risk
true
Digital assets must always be tangible
False
Which among the following is the most flexible cryptocurrency?
Riple-wrong Bitcoin-wrong litecoin-wrong ether-correct
Name the first cryptocurrency with computing power contribution
Bitcoin - wrong ripple - wrong gridcoin
We can buy cryptocurrency
false