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Question 64/65
___________________ensures that the shared ledgers are exact copies, and lowers the risk of fraudulent transactions, because tampering would have to occur across many places at exactly the same time.
Correct Answer: B
Explanation/Reference:
Explanation:
Consensus ensures that the shared ledgers are exact copies, and lowers the risk of fraudulent transactions, because tampering would have to occur across many places at exactly the same time Reference: https://www.ibm.com/developerworks/cloud/library/cl-blockchain-basics-intro-bluemix-trs/ index.html
Explanation:
Consensus ensures that the shared ledgers are exact copies, and lowers the risk of fraudulent transactions, because tampering would have to occur across many places at exactly the same time Reference: https://www.ibm.com/developerworks/cloud/library/cl-blockchain-basics-intro-bluemix-trs/ index.html
- Question List (65q)
- Question 1: An _____________ is a well-known service that signs transact...
- Question 2: Which of the following enterprise blockchains have a pluggab...
- Question 3: Blockchains are decentralized ledgers which, by definition, ...
- Question 4: Which of the following is NOT considered a token?...
- Question 5: When writing and considering push and pull in a smart contra...
- Question 6: In Hyperledger, nodes need a ________________ to be able to ...
- Question 7: When considering tokens on the Ethereum Blockchain what is t...
- Question 8: Regarding Ethereum contracts, the contracts can call (perfor...
- Question 9: Chaincode is a decentralized transactional program, running ...
- Question 10: A centralized system is one that that is governed by a hiera...
- Question 11: What component on the blockchain maintains the "world state"...
- Question 12: Composer Modeling Language is an object-oriented modeling la...
- Question 13: The difference between Ethereum tokens and a standalone curr...
- Question 14: A ____________cipher basically means it is using a fixed key...
- Question 15: What are two specific advantages of using Hyperledger Fabric...
- Question 16: R3 Corda does not organize time into blocks. What does Corda...
- Question 17: The most popular Ethereum development framework is currently...
- Question 18: Addresses on a blockchain are derived by a process of hashin...
- Question 19: In the Proof of Stake(POS) algorithm the miners are really k...
- Question 20: What type of peer node executes transactions?...
- Question 21: Gas has multiple associated terms with it: Gas Prices, Gas C...
- Question 22: When you are developing with Fabric Composer which of the fo...
- Question 23: Contracts live on the blockchain in an Ethereum-specific bin...
- Question 24: You currently on a conference call with an executive from a ...
- Question 25: You would like to run Ethereum DApps in a browser without a ...
- Question 26: In Hashcash, miners all compete to look for a so called. "__...
- Question 27: What type of "bug" generally occurs when something isn't rig...
- Question 28: You are considering writing a smart contract for Ethereum an...
- Question 29: In the EVM every account has a persistent key-value store ma...
- Question 30: When developing in Ethereum which is considered to be an In-...
- Question 31: Your company working for is now considering the blockchain. ...
- Question 32: In Ethereum the difficulty adjustment algorithm is coded in ...
- Question 33: What is a logic gate in electronics and computer science?...
- Question 34: The ____________of the tree is the topmost node and hence th...
- Question 35: There are two types of tokens in blockchain solutions. (Sele...
- Question 36: The key difference between encryption and hashing is that en...
- Question 37: Which of the following is considered the most popular public...
- Question 38: What type of encryption is shown below and is commonly used ...
- Question 39: Blockchain provenance is defined as _______________?...
- Question 40: What does the 20 in ERC20 mean or relate to?...
- Question 41: You are currently consulting with an organization that ships...
- Question 42: Looking the graph below, what type of an attack is this like...
- Question 43: Hyperledger Composer has following two main components?...
- Question 44: What is the difference in using Go-Ethereum over Ganache?...
- Question 45: With Hyperledger Fabric ledger, it supports both levelDB / C...
- Question 46: Fabric Ledger has two specific parts. Select answer with the...
- Question 47: Smart Contracts provide all the following benefits EXCEPT?...
- Question 48: Ethereum is considered to be a ______________type of blockch...
- Question 49: What is the language that Solidity is using to build on the ...
- Question 50: In what year did a whitepaper that was published by "Satoshi...
- Question 51: When specifying blockchain technologies, it is important to ...
- Question 52: Your customer is an enterprise that is focused on financial ...
- Question 53: A Byzantine failure is the loss of a system service due to a...
- Question 54: Hyperledger is an enterprise focused blockchain project. Thi...
- Question 55: You are using Truffle for an Ethereum contract and would lik...
- Question 56: Ethereum currently uses the ___________Consensus Algo and in...
- Question 57: The gas price is a value set by the creator of the blockchai...
- Question 58: Secure Hash Algorithm (SHA-256) output is always 256 bits or...
- Question 59: How many peers in the network need to endorse a transaction ...
- Question 60: Smart Contracts are generally written in specific programmin...
- Question 61: You have flown to NYC to have a discussion with a technical ...
- Question 62: In Ethereum how is the block difficulty determined in Ethere...
- Question 63: ___________is advantageous because it presents scalability a...
- Question 64: ___________________ensures that the shared ledgers are exact...
- Question 65: Your company is looking to develop a new token and raise fun...
