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What is Blockchain?
0 points
A combination of centralized ledgers
A type of cryptocurrency
A distributed ledger on a peer to peer network
An exchange of distributed information
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Blockchain connects each block to the previous block by a unique cryptographic hash?
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No
Yes
Clear selection
What are the characteristics of Blockchain?
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Distributed nature
Decentralised
Provenance
Pseudo-anonymity
Tamper-evident
Immutable
In a decentralised environment, centralised authority control the network or operations.
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Yes
No
Clear selection
What belongs to the Ethereum platform?
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Ether
Smart contract
Vitalik Buterin
Wei
Blockchain 2.0
What is a Genesis block?
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Last block in Blockchain
First block in Blockchain
Latest block in Blockchain
Deleted block
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What are the different types of Blockchain?
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Permissionless, generic, private
Permissionless, permissioned, private
Public, secret, consortium
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Select correct statements "Permissioned Blockchain"
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Allows pre-defined nodes to participate in consensus mechanism
Fast and privacy oriented
Requires no permission to join the Blockchain network
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