In what year did a whitepaper that was published by “Satoshi Nakamoto” outlined a solution to the Byzantine Generals problem?
Consider the following scenario: Due to consistent inaccuracies and outdated real estate listings, a residential real estate company wants to build a blockchain solution that accurately depicts which homes (assets) are available for purchase across all countries/provinces. All available homes should be publicly viewable by the general consumer audience, but certain details of the home, such as history of maintenance, should only be viewable by licensed real estate professionals.
Which architecture would best solve the product need?
Which cryptocurrency is also known as "Smart Money" in the blockchain world?
In Hyperledger Fabric, the smart contract logic is also called by two other names _______________ and ______________? (Select two.)
In regard to blockchain, complete autonomy, transparency, and decentralization:
What consensus algo uses a method of sending coins to an address where they cannot be retrieved?
Blockchains only work to store financial transactions or other exchanges of monetary value.
Proof of Stake based blockchain systems use what design to permit valid write transactions?
Bitcoin uses what proof of work consensus system?
What type of "bug" generally occurs when something isn’t right according to business requirements?
A Byzantine failure is the loss of a system service due to a Byzantine fault in systems that requires________.
What is required?
By default, who can see transaction details on a public/open blockchain?
Which of the following is NOT considered a token?
What is diagram referencing below?
Which one of the following is a consideration that must be taken into account when using Hyperledger Fabric that you wouldn’t need worry about on Ethereum?
You are using Truffle for an Ethereum contract and would like to use a default set of contracts and tests from within an empty project directory.
What is the syntax?
Your company working for is now considering the blockchain. They would like to perform a POC with R3 Corda. The CIO was reading about different blockchain consensus algos and would like to understand what type of consensus algos is used with Corda.
What is the best answer?
A Smart Contract needs to check the daily closing price of a stock, in order to determine how to act. The proper way to do this is with the use of ______________.
It is impossible to persist media types such as MP3 and MOV on any distributed ledger.
The two main types of transactions you can perform in Hyperledger Fabric are:
The most popular Ethereum development framework is currently Truffle.
What are three features of Truffle? (Select three.)
Complex application components should try to be concentrated in which application layer?
The CA (Fabric CA by default) issues a ______________ to each member (organization or individual) that is authorized to join the network.
Which of following scenarios and datasets would be best suited to be utilized by a blockchain solution?
What type of attack would be considered a very large flaw in public blockchains such as Bitcoin’s Blockchain where the majority of hashpower could possibly be controlled thru an attack?
What is the specific attack Bitcoin could be exposed to?
You are considering writing a smart contract for Ethereum and would like to use a robust programming language.
Which programming language is considered the most flexible and robust for Ethereum?
One critical business consideration you must account for when choosing Hyperledger Fabric over Ethereum is:
Message Calls in the Ethereum EVM is limited to a depth of ______?
When you are developing with Fabric Composer which of the following is true?
The block creation time is set to how many minutes in Bitcoin?
What is a logic gate in electronics and computer science?
You are considering writing smart contracts and there are a few different languages you can consider. (Select two.)
When a blockchain software is updated with new functionality that breaks or modifies the rules of the previous version of the software, what has just occurred?