Exam Code: CBDE
Exam Name: BTA Certified Blockchain Developer - Ethereum
Updated: Apr 28, 2024
Q&As: 102
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Transactions containing the same data to create the same smart contract are:
A. always having the same signature.
B. having a different signature because of the nonce which changes upon every transaction.
A Blockchain Node:
A. can never become a mining node.
B. can always become a mining node.
C. can become a mining node, depending if the implementation has the functionality implemented.
To store almost all data in the Ethereum Blockchain:
A. a Linked List with pointers to previous blocks hashes is used.
B. a Merkle Patricia Trie is used.
C. a Radix Trie is used because the Merkle Patricia Trie is too inefficient.
EVM assembly:
A. is much better than Solidity and a viable alternative.
B. can be split across multiple files, but every contract must be in a file with the same name as the contract itself.
C. is another language similar to LLL, more secure than Solidity.
A Struct is a great way:
A. to define a new datatype in Solidity, so you don't need to use objects of another contract.
B. to hold instances of other contracts.
C. to implement pointers to other contracts that can hold new datatypes.
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