Name: BTA Certified Blockchain Developer - Ethereum
Brand: ValidExamDumps
SKU: CBDE
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Free Blockchain CBDE Exam Actual Questions

The questions for CBDE were last updated On Dec 19, 2024

Question No. 1

Sending one Ether is actually internally translated:

Ato Wei, so it will send the equivalent of 10^18 Wei.

Bto Finney, so it will send the equivalent of 10^3 Finney.

Cto Szabo, so it will send the equivalent of 10^6 Szabo.

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Correct Answer: A

Question No. 2

Truffle:

Ais a framework that helps developers with Testing, Deployment and Management of Smart Contracts and Distributed Applications.

Bis a library that helps developers to connect to Ethereum nodes, because it abstracts the JSONRPC interface.

Cis a framework for Java, similar to Web3.js for JavaScript. It's a great way to develop distributed Java enterprise applications.

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Correct Answer: A

Question No. 3

The JSON-RPC Protocol:

Ais used to communicate between blockchain nodes.

Bis used to ensure safe communication between miners.

Cis a mean of dumping the blockchain data in a so-called consensus export.

Dis used to communicate between the blockchain node and externally running applications.

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Correct Answer: D

Question No. 4

To communicate with an Ethereum node via JavaScript:

Athe library you use must make use of the JSON-RPC Interface of an Ethereum Node.

Bmust Implement the Ethereum Protocol to connect to other Ethereum Nodes.

Cmust use Web3.js, which is closed source to communicate to other Ethereum Nodes.

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Correct Answer: A

Question No. 5

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

Aall public state variables and properties, public and internal functions and modifiers.

Ball public and private state variables, public, internal and external functions, but not modifiers

Call public state variables and properties, public functions and modifiers, but not internal, external or private ones.

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Correct Answer: A