Printable PDFBlockchain CBDE dumps - 100% Pass Guarantee!
Vendor: Blockchain
Certifications: Blockchain Certifications
Exam Name: BTA Certified Blockchain Developer - Ethereum
Exam Code: CBDE
Total Questions: 102 Q&As ( View Details)
Last Updated: Mar 14, 2025
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CBDE Q&A's Detail
| Exam Code: | CBDE |
| Total Questions: | 102 |
| Single & Multiple Choice | 102 |
CertBus Has the Latest CBDE Exam Dumps in Both PDF and VCE Format
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CBDE Online Practice Questions and Answers
Block Timestamp:
A. the timestamp is based on the time zone of the miner, that is why it changes the difficulty continuously to reflect network latency.
B. the timestamp can't be influenced by a miner and is generally considered safe to be used for randomness on the blockchain.
C. the timestamp can be influenced by a miner to a certain degree but it's always independent from the time-zone.
The JSON-RPC Protocol:
A. is used to communicate between blockchain nodes.
B. is used to ensure safe communication between miners.
C. is a mean of dumping the blockchain data in a so-called consensus export.
D. is used to communicate between the blockchain node and externally running applications.
Single line comments in Solidity are:
A. working with either // or ///
B. working with /* comment */ or /** @.. natspec style */
C. not possible, all comments must be multi-line.
Function and Variable Visibility:
A. a function that is marked as internal cannot be called by other contracts, unless the function is used by a derived contract. Private Functions cannot be called by any other outside contract and public variables are generating automatically a getter function.
B. a function that is marked as external can never be called internally. Private functions can also be called by derived contracts using inheritance. Private variables are accessible also in derived contracts.
When defining a new datatype:
A. its best to use a contract with public storage variables, so it can be used like a class.
B. it's best to use a struct, which is cheaper than deploying a new contract.
C. it's not possible to generate new datatypes in Solidity.
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