Blockchain >> CBDE

For Rapid Development Cycles it’s good:

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Correct Answer for the Question – For Rapid Development Cycles it’s good: is given below For Rapid Development Cycles it’s good: to deploy to the main-network as quickly as possible. to use in-memory blockchain simulations, because mining works instantaneously. to use a private network at all times, because this is the closest you get to the … Read more

A version pragma is a great way to make it clear:

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Correct Answer for the Question – A version pragma is a great way to make it clear: is given below A version pragma is a great way to make it clear: for which compiler version a smart contract was developed for. It helps to avoid breaking changes. for which blockchain a smart contract was developed for. … Read more

If you need more fine-grained functionality than solidity offers out of the box:

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Correct Answer for the Question – If you need more fine-grained functionality than solidity offers out of the box: is given below If you need more fine-grained functionality than solidity offers out of the box: you can incorporate inline-assembly to get better controls. you have to import pre-compiled assembly files which are then hard-copied into the … Read more

Inheritance is useful, because a contract that is derived from another contract can make use of:

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Correct Answer for the Question – Inheritance is useful, because a contract that is derived from another contract can make use of: is given below Inheritance is useful, because a contract that is derived from another contract can make use of: all public state variables and properties, public and internal functions and modifiers. all public and … Read more

Smart Contracts can be written in:

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Correct Answer for the Question – Smart Contracts can be written in: is given below Smart Contracts can be written in: Java, C++, Solidity and JavaScript, because the Ethereum Blockchain is completely language agnostic and cross compilers exist for every major language. Solidity, Viper, LLL and Serpent, because those are high level languages that are compiled … Read more

To communicate with an Ethereum node via JavaScript:

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Correct Answer for the Question – To communicate with an Ethereum node via JavaScript: is given below To communicate with an Ethereum node via JavaScript: the library you use must make use of the JSON-RPC Interface of an Ethereum Node. must Implement the Ethereum Protocol to connect to other Ethereum Nodes. must use Web3.js, which is … Read more

Ethereum Nodes:

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Correct Answer for the Question – Ethereum Nodes: is given below Ethereum Nodes: must implement the Ethereum protocol and external access can only be done via the proprietary Ethereum Libraries like Web3.js. must implement the Ethereum Protocol and a JSON-RPC to talk with clients. must implement Web3.js to interact with Websites. Correct Answer The Correct Answer … Read more

Using selfdestruct(beneficiary) with the beneficiary being a contract without a payable fallback function:

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Correct Answer for the Question – Using selfdestruct(beneficiary) with the beneficiary being a contract without a payable fallback function: is given below Using selfdestruct(beneficiary) with the beneficiary being a contract without a payable fallback function: will throw an exception, because the fallback function is non-payable and thus cannot receive ether. it’s impossible to secure a contract … Read more