Blockchain CBBF Practice Test - Questions Answers, Page 5
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How much data can be represented by the data hash of a block?
A.
a maximum of 20 MB
B.
virtually any amount
C.
not to exceed 100k bytes
D.
the hash is only a memory location
What is a Blockchain?
A.
A digital currency
B.
An unchangeable record
C.
A database of usable secret data
D.
A Smart Contract
E.
All of the above
What is a node in a Blockchain? Select all that apply.
A.
A block
B.
Certificate Authority
C.
A miner
D.
A computer running on the Blockchain
The common safe place to store personal cryptocurrency is_____________.
A.
A digital wallet
B.
in a secure ledger
C.
a bank account
D.
in a secure database
Cryptocurrencies are a security regulated by the Securities and Exchange Commission.
A.
True
B.
False
Once a record has been added to a Blockchain it can be altered.
A.
True
B.
False
In 2009, Bitcoin was created by_________.
A.
Vitalik Buterin
B.
Satoshi Nakamoto
C.
Hyperledger Foundation
D.
A Banking Consortium
One of the great advantages of creating a new Blockchain solution is__________.
A.
the ability to completely customize a unique business solution
B.
combining Blockchain technologies to fit your business solution
C.
merging your existing network technology into a new Blockchain solution
D.
not being limited to a conventional business solution or restriction
E.
All of the above
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