Bundling them into blocks

_____ is a mechanism that allows digital assets from one blockchain to be used as a separate blockchain.-- SideChain
Blockchain is a distributed______.-- Ledger
_____ is a process of verifying transactions, bundling them into blocks, and adding those blocks to the blockchain.-- Mining
Which type of blockchains are controlled by a particular person or organization?-- Private
What is the total number of bitcoins that can ever exist?-- 21 milion
Nodes are independent computing units of a distributed system.-- True
Bitcoin is a public, permisionless blockchain.-- True
Consensus mechanisms makes a distributed system truly trustless.-- True
_____ are a set of rules that verify and add transactions to a blockchain-- Consensus Mechanisms
A peer to peer network of autonomous computers is a ______.-- Distributed nwetworks

Permissioned blockchains usually use PBFT algorithms.-- True
Decentralized platforms do not require information to pass through a single point.-- True
Which release of Ethereum will have Proof of Stake Consensus algorithm.-- Serenity _____ relies on exchange of messages among nodes that follow a distributed protocol to come to an agreement.-- Proof of work
Which of the following is a Leader election-based consensus mechanism?-- Proof of Elapsed(wrong)
In ______ mechanism, the miner is selected based on reputation built over time.-- Reputation based
The Proof of Elapsed Time (PoET) concept was developed by ______ in early 2016.-- Intel
Consensus algorithms must be fault tolerant.-- True
Which consensus algorithm requires a complex, computation intensive mathematical problem to be solved.-- Proof of stake(wrong)

problem to be solved.--- POW
_____ is a javascript library that allows you to interact with Ethereum-- web3.js Hyperledger Fabric is a private blockchain.-- True
What are the two main types of cryptography?--Symmetric, Asymmetric
Hyperledger platform was developed by ______.--Linux foundation
Which style of programming is well suited for Smart Contract programming?-- defensive
What are the tokens used as computational fee in ethereum blockchain?--
Ether(wrong)
What are the two types of nodes in Hyperledger Fabric?-- Peer nodes and Ordering Nodes