Blockchain CBDE Exam - Topic 4 Question 12 Discussion

Actual exam question for Blockchain's CBDE exam

Question #: 12
Topic #: 4

[All CBDE Questions]

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 Hillary at May 09, 2022, 06:41 PM

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5 months ago

A is correct, it will throw an exception.

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Ah, I see what they're getting at. The returned order sales type should handle that automatically, so the solution provided should work. I'll double-check the details, but this seems like a straightforward one.

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Regenia

5 months ago

Hmm, I'm a bit torn on this one. The question mentions a "broadly targeted digital campaign," so I'm not sure if a randomized control trial would be the best approach. Maybe an A/B test would work better to compare different approaches?

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Wendell

5 months ago

Ugh, I'm a bit fuzzy on skewness. I'll try to recall the key characteristics and see if I can match them to the histogram.

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Patti

5 months ago

Okay, let's see here. The question says the engineer wants to verify the cookie consistency protection, so I'm guessing the cookie name should be something related to that. Maybe it's Citrix_waf_id, since the WAF (Web Application Firewall) is often involved in cookie-based protections.

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Gail

5 months ago

I think 'D' makes sense - specialty services like mental health or complex treatments definitely need specific expertise to manage properly.

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Blockchain CBDE Exam - Topic 4 Question 12 Discussion

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Elke

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