Blockchain Exam CBDE Topic 4 Question 101 Discussion

Actual exam question for Blockchain's CBDE exam

Question #: 101
Topic #: 4

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

Awill throw an exception, because the fallback function is non-payable and thus cannot receive ether.

Bit's impossible to secure a contract against receiving ether, because selfdestruct will always send ether to the address in the argument. This is a design decision of the Ethereum platform.

Cselfdestruct doesn't send anything to a contract, it just re-assigns the owner of the contract to a new person. Sending ether must be done outside of selfdestruct.

Show Suggested Answer

Suggested Answer: B

by Bernardo at Sep 17, 2024, 07:50 PM

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Monroe

2 months ago

I'll go with Option A. It's the only one that actually makes sense from a technical standpoint. The other options seem like they were written by people who don't really understand how Solidity works.

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Roy

2 months ago

Haha, Option C is just silly. Selfdestruct definitely sends ether, it's not just a way to change ownership. These options are getting more and more ridiculous!

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Nan

1 months ago

C) selfdestruct doesn't send anything to a contract, it just re-assigns the owner of the contract to a new person. Sending ether must be done outside of selfdestruct.

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Ilene

1 months ago

Haha, Option C is just silly. Selfdestruct definitely sends ether, it's not just a way to change ownership. These options are getting more and more ridiculous!

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Lavonne

1 months ago

B) it's impossible to secure a contract against receiving ether, because selfdestruct will always send ether to the address in the argument. This is a design decision of the Ethereum platform.

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Laquanda

2 months ago

Haha, Option C is just silly. Selfdestruct definitely sends ether, it's not just a way to change ownership. These options are getting more and more ridiculous!

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Lizette

2 months ago

A) will throw an exception, because the fallback function is non-payable and thus cannot receive ether.

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Annabelle

2 months ago

B) it's impossible to secure a contract against receiving ether, because selfdestruct will always send ether to the address in the argument. This is a design decision of the Ethereum platform.

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Lindsay

2 months ago

A) will throw an exception, because the fallback function is non-payable and thus cannot receive ether.

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Erasmo

3 months ago

I think the answer is C, because selfdestruct only re-assigns the owner of the contract.

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Abel

3 months ago

I disagree, I believe the answer is B. Ethereum platform always sends ether to the address in the argument.

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Chau

3 months ago

I think Option B is the right answer. Ethereum's design doesn't allow you to prevent a contract from receiving ether through selfdestruct, it's a fundamental feature.

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Val

2 months ago

I think Option B is the right answer. Ethereum's design doesn't allow you to prevent a contract from receiving ether through selfdestruct, it's a fundamental feature.

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Rodolfo

2 months ago

B) it's impossible to secure a contract against receiving ether, because selfdestruct will always send ether to the address in the argument. This is a design decision of the Ethereum platform.

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