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itcoin was introduced to the world under a cloud of mystery in _ _ _ _ _ _ _ _ _ _ _ _ _

itcoin was introduced to the world under a cloud of mystery in _______________.
a.
January 2009.
b.
February 2009.
c.
January 2008.
d.
February 2008.
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A Peer-to-Peer Electronic Cash System, published in _______ under the pseudonym of Satoshi Nakamoto.
a.
2009.
b.
2008.
c.
2007.
d.
NoGenerally a database is a data structure which is used for _____________.
a.
sharing information.
b.
storing information.
c.
Both A & B.
d.
None of the above.
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The database ___________ can modify the data stored in the database.
a.
client.
b.
administrator.
c.
owner.
d.
None of the above.ne of the above.
A blockchain network is a technical infrastructure that allows applications to access _____________.
a.
ledger.
b.
smart contract services.
c.
Both A & B.
d.
None of the above.
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Private blockchains, also known as managed blockchains, are permissioned blockchains that are administered by a ____________.
a.
multiple entity.
b.
single entity.
c.
Both A & B.
d.
None of the above.
ne of the above.
In the MPT, as well as in the Merkle tree, every node has a ___________.
a.
multiple value.
b.
asterisk value.
c.
hash value.
d.
None of the above.
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A Node that does not have a child node is called a _________.
a.
leaf node.
b.
root node.
c.
branch node.
d.
stem node.??????????????referstothemaximumpriceacryptocurrencyuseriswillingtopaywhensendingatransaction,orperformingasmartcontractfunction,intheEthereumblockchain.
a.
Gas fee.
b.
Gas limit.
c.
Both A & B.
d.
None of the above.
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The gas limit works asa?????????????? that prevents high fees from being incorrectly charged due to a bug or error in a smart contract.
a.
privacy mechanism.
b.
optimization mechanism.
c.
security mechanism.
d.
None of the above.
The blockchain fee is a cryptocurrency ???????????????????? that is charged to users when performing crypto transactions.
a.
nominal fee.
b.
transaction fee.
c.
Both A & B.
d.
None of the above.
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Transaction fees are not ??????????? and they vary based on many variables.
a.
static.
b.
dynamic.
c.
Both A & B.
d.
None of Mixers, also called ????????????, works by receiving and sending back the same amount of coins using independent Bitcoin addresses, thus breaking traceability and obscuring any links between participating users.
a.
utensils.
b.
tumblers.
c.
Both A & B.
d.
None of the above.
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Comparing to pseudonymity, the ???????????????its like writing under no pseudonym so there isabsolutelyno way to your identity information tobe leaked.
a.
anonymity.
b.
privacy.
c.
Both A & B.
d.
None of the aThe block reward provides an incentive for ??????????????????to process transactions made with the cryptocurrency.
a.
developers.
b.
bitcoin miners.
c.
Both A & B.
d.
None of the above.
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Bitcoin was designed so that new bitcoins are created ata??????????????????.
a.
discrete pace.
b.
sequential pace.
c.
consistent pace.
d.
All of the above.bove.the above.
The first element of a policy must be a clear definition of its ????????????.
a.
technology.
b.
objectives.
c.
Both A & B.
d.
None of the above.
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