CBSA 2 questions and answers 2022

In Ethereum how is the block dijculty determined in Ethereum? A. The Block Dijculty increases when the time between mined blocks is below 10 seconds, while it decreases when the time is above 20 seconds. B. The Block Dijculty is determined by the Ethereum Committee every fortnight to reect the average amount of transaction and it cannot be inuenced by the network itself. C. The Block Dijculty increases when the time between mined blocks is below 20 seconds, while it decreases when the tie is above 60 seconds. A. The Block Dijculty increases when the time between mined blocks is below 10 seconds, while it decreases when the time is above 20 seconds. In regards to understanding the Ethereum Virtual Machine what statement is true? A. The EVM is extremely powerful, non-turing complete and perfect for doing computational intensive thins, because of the direct access to the graphics card. B. The EVM is extremely powerful, turing complete and perfect for doing computational intensive things, because of the direct access to the graphics card. C. While the EVM is Sandboxed, it isn't as powerful as the Bitcoin network, because it's not Turing Complete D. The EVM can't access hardware layers or anything outside a blockchain node because it's sandboxed. D. The EVM can't access hardware layers or anything outside a blockchain node because it's sandboxed. 00:03 01:36 Blockchain provenance is de+ned as _______________? A. Information sent to the blockchain and written to the blockchain. B. Recording the history of data, from its last block to various stages of the data lifecycle C. Recording the history of data, from its inception to various stages of the data lifecycle. D. Once a transaction has been written and committed to the ledger it cannot be changed. C. Recording the history of data, from its inception to various stages of the data lifecycle. Smart Contracts provide all the following bene+ts EXCEPT? A. Legally Enforcable B. Autonomy C. Cast Savings D. Ejciency E. Backup A. Legally Enforcable There are two types of tokens in blockchain solutions. (Select two.) A. Legal B. Utility C. Equity D. Financial B. Utility C. Equity You are currently considering blockchain solutions for your organization. You read an article about "blockless" blockchains. What are the two bene+ts that could be gained over a traditional blockchain solution? (Select two.) A. Faster Block writes B. Greater Transaction Security C. Faster Performance D. Greater transaction Capacity A. Faster Block writes B. Greater Transaction Security In blockchains there is the concept of "Group Consensus" and how many members must agree. A. 52% B. 74% C. 75% D. 51% E. 100% 51% What consensus algo uses a method of sending coins to an address where they cannot be retrieved? A. Proof of Stake B. Proof of Activity C. Proof of Burn D. Proof of Sending Proof of Stake Bitcoin implemented Byzantine Fault Tolerance through a system named: A. Authenticated Encryption B. Proof of Work C. PBKDF2 D. None of the above Proof of Work Hyperledger is an enterprise focused blockchain project. This project was released by a consortium under the umbrella of the Linux Foundation's Hyperledger Project. What year did Hyperledger go live? A. 2013 B. 2012 C. 2015 D. 2009 2015 What is the difference in using Go-Ethereum over Ganache? A. Can automate builds with Go Ethereum but you can't with Ganache B. Go Ethereum is written in Java whereas Ganache is written in Golang C. Go Ethereum is real blockchain whereas Ganache is a blockchain simulation D. Ganache is a real blockchain whereas Go Ethereum is a blockchain simulation Go Ethereum is written in Java whereas Ganache is written in Golang In what year did a whitepaper that was published by "Satoshi Nakamoto" outlined a solution to the Byzantine Generals problem? A. 2006 B. 2009 C. 2008 D. 2010 2008 What is a development language which lets developers solve any class of problem in existence given in+nite time and resources? A. Turing Complete B. Turing Incomplete C. Solidity D. Mist E. JVM F. EVM Turing Complete When you considering developing and running dAPPS in Ethereum its important to understand that Gas and Ether are decoupled for price stability. Is this True or False? A. True B. False True What type of "bug" generally occurs when something isn't right according to business requirements? A. Business logic B. Business Requirements C. Integration D. Accessibility E. Security Business logic Ideal bug reports link the bug being reported to a _______________ A. Business Value B. Business Process C. Regression Issue D. Business Target E. Progression Issue Business Value Which cryptocurrency is also known as "Smart Money" in the blockchain world? A. Ether B. BTC C. Monero D. Litecoin Ether You are considering a cryptocurrency and for your privacy and anonymity are number one priority. Which cryptocurrency should you likely use? A. Monero B. Bitcoin C. Dash D. Shadowcoin E. Litecoin Monero When specifying blockchain technologies, it is important to understand its bene+ts and its challenges. What would be two challenges of blockchain technology adoption to an enterprise? (Select two.) A. Scalability, transaction speed / cost B. Tokenization of platforms C. Distributed D. Very New Technology Scalability, transaction speed / cost Very New Technology What bene+t does HPE Cloud Cruiser provide? A. Need for proven, production-ready technology B. Need a full history of all application data C. Require top-notch performance D. Need to avoid data duplication or redundancy Need for proven, production-ready technology The word "Drapp" or "DApp" is most commonly understood to mean what? A. Distributed Application B. Distributed Apps and Programs C. Decentralized Application D. Distributed Autonomous Application Decentralized Application Which of these reasons is a good reason to choose a conventional database over blockchain to store application data? A. Centralization is to be avoided B. Databases should never be used over blockchain C. Full history is needed for all data D. High performance is required High performance is required Which of the following scenarios and databases is least suited to be utilized by a blockchain solution? A. Scenario: Law enforcement system; Dataset: Criminal Arrests, Warrants for Arrest, Conviction Date B. Scenario: An Email campaign service; Dataset: Recipient Email, From Email; Subject, Body C. Scenario: A family +lter wi+ router; Dataset: Websites Visited, Websites Blocked, Download History D. Scenario: Credit score app; Dataset: Credit Score, Hard Inquiries; Collections, Date Removed, Date Added Scenario: Law enforcement system; Dataset: Criminal Arrests, Warrants for Arrest, Conviction Date Blockchain systems can offer what advantage over centralized systems? A. They are much easier to maintain and update B. They have signi+cantly higher transaction speeds C. Their distributed ledger systems are more secure and immutable D. All of the above Their distributed ledger systems are more secure and immutable Blockchain systems assume all parties are trusted by all other parties in the exchange or ecosystem. A. FALSE B. TRUE FALSE All blockchain networks and systems require autonomous on-chain code in order to process transactions. A. FALSE B. TRUE FALSE The +rst actual known blockchain software implementation and deployment occurred: A. In 1991 by Stuart Haber B. In 2011 Markus Persson C. In 2009 by Satoshi Nakamoto D. In 1991 by Linus Torvalds In 2009 by Satoshi Nakamoto Which of these technical components best represents why cryptocurrency is able to operate successfully? A. An immutable digital ledger that is validated and distributed across many peers B. Using API calls, cryptocurrency having a direct correlation to USD exchange rates C. High performance computing power allows cryptocurrency to be minted just as a central government might do with +at currency D. Blockchain cryptocurrency transactions are always public which generates user trust and adoption An immutable digital ledger that is validated and distributed across many peer