The block creation time is set to how many minutes in Bitcoin?
Answer(s): B
Remember, that the block creation time is set to 10 minutes and this can never change. So after a fixed time of approximately 2 weeks or exactly 2016 blocks the difficulty is re-adjusted. Increase in difficulty means target decreases.
https://medium.com/all-things-ledger/decoding-the-enigma-of-bitcoin-mining-f8b2697bc4e2
In Hyperledger Fabric chaincode runs in a secured Docker container isolated from the endorsing peer process?
Answer(s): A
http://hyperledger-fabric.readthedocs.io/en/release-1.1/chaincode.html
You would like to run Ethereum DApps in a browser without a node. (No need to download blockchain.) What could you use locally in your Chrome browser?
Answer(s): C
Metamask is essentially a bridge.
You would like to start your Gethin Fast Sync Mode. What is the command for this?
https://datawookie.netlify.com/blog/2018/01/ethereum-running-a-node/
Which of the following is not considered an Ethereum testnet?
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