Free CBDE Practice Test Questions and Answers (2026)

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Q: 1

Truffle:

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Q: 2
Address.send():
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Q: 3
Which is the right order for Denominations?
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Q: 4
Finish the sentence: The Library Web3.js is …:
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Q: 5
When a smart contract pays out money:
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Q: 6
Proof of Work (PoW) vs. Proof of Stake.
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Q: 7
Loops in Solidity:
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Q: 8
Why is it important to follow the same Interfaces?
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Q: 9
A Mapping consists of keys and value.
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Q: 10
In order to implement an ERC20 token contract, you'd need at least to implement the following functions and events in order to fulfill the interface requirements:
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Q: 11
If we divide two integers: 5/2, the result is:
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Q: 12
View and Pure Functions:
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Q: 13
Consensus is reached:
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Q: 14
Truffle has an integrated in-memory blockchain which makes unit-testing very easy:
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Q: 15
It's not possible to use inheritance from multiple sources in Solidity.
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Q: 16
According to the official Style Guide:
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Q: 17
What is the difference between ERC20 and ERC721 Tokens in simple terms?
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Q: 18
To generate a random number:
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Q: 19
A Struct is a great way:
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Q: 20
Integrating the community into your testing:
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Question 1 of 20

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