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WorksheetsIntroduction to BlockChain
Total questions: 10
Worksheet time: 6mins
What is the primary benefit of immutability ?
Increased efficiency
Tamper-proof
Scalability
Resiliency
Are the parties involved in the block chain transaction anonymous. Answer True or False?
True
False
What are the different hashes in block chain, select the valid ones
Transaction Hash
Private Hash
Root Hash
Block Hash
Does Bitcoin and Ethereum use peer-to-peer gossip protocol?
True
False
What are the properties of a Hash Function ? Select more than one answer.
SHA-256
Fixed Length
Non Unique
One-way function
What are the advantages of private blockchain network?
Faster
Open & Transparent
Scalable
Slow
What are the examples of Private Blockchain network?
R3 Corda
Ethereum
HyperLedger Fabric
Bitcoin
What is the correct order of steps in the Bitcoin transaction lifecycle?
Initiate the transaction ,Sign the transaction, Validate the transaction, Broadcast the transaction , Nodes validate the transaction , New Block added to existing Blockchain, Transactions combined to form a data block Transaction is complete the ledger is updated
Initiate the transaction ,Sign the transaction, Validate the transaction, Broadcast the transaction , Nodes validate the transaction , Transactions combined to form a data block , New Block added to existing Blockchain, Transaction is complete the ledger is updated
Initiate the transaction,Validate the transaction, Sign the transaction,Broadcast the transaction,Nodes validate the transaction,Transactions combined to form a data block, Transaction is complete the ledger is updated ,New Block added to existing Blockchain
Initiate the transaction, Sign the transaction,Validate the transaction, Broadcast the transaction,Nodes validate the transaction,Transactions combined to form a data block, Transaction is complete the ledger is updated ,New Block added to existing Blockchain
What are the features of Blockchain ?
Select more than one
Immutability
Centralized
Tamper-proof
Distributed
Bitcoin whitepaper with blockchain technology was introduced in year 2008 by ___________________
Hai Finney
Vitalik Butarin
Michael Wood
Satoshi Nakamoto
