Which of the following blockchain key components state how the transactions will be confirmed?
Answer(s): B
Validity rules (validation) state how the user and the transactions will be validated. This is predetermined by the consensus algorithm.
A chaincode package that was signed at creation can be handed over to other owners for inspection and signing in Hyperledger.Is it true that the workflow supports out-of-band signing of chaincode package?
Answer(s): A
A chaincode package that was signed at creation can be handed over to other owners for inspection and signing. The workflow supports out-of-band signing of chaincode package.
http://hyperledger-fabric.readthedocs.io/en/release-1.1/chaincode4noah.html
____________is advantageous because it presents scalability and low cost transactions, but like DPoS introduces a component of centralization.What algorithm is being referenced here?
BFT is notably implemented by Ripple (where validators are pre-selected by the Ripple foundation) and Stellar (where anyone can be a validator and trust is established by the community). BFT is advantageous because it presents scalability and low cost transactions, but like DPoS introduces a component of centralization.
https://hackernoon.com/an-overview-of-cryptocurrency-consensus-algorithms-9d744289378f
In Hashcash, miners all compete to look for a so called. " ____________"which, if provided as input (together with other parts of a block header) to a hash function, yields an output that’s numerically small enough to claim the next block reward.
You currently on a conference call with an executive from a too big to fail bank. They are validating that they want to use Quorum or another enterprise blockchain. They specifically want to know what type of consensus algo it uses and what industry for the Quorum blockchain targets.
Answer(s): D
https://www.horsesforsources.com/top-5-blockchain-platforms_031618
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