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Blockchain CBDE Exam - Topic 5 Question 13 Discussion

To send ether to a contract without a function call:
A) a fallback function must be declared and it must be made payable. If there is no fallback function or the fallback function is not payable it will throw an exception.
B) either a fallback function which is payable exists, or no fallback function at all exists.
C) you cannot send ether to a contract without explicitly calling a function. The fallback function can never receive ether.

Blockchain CBDE Exam - Topic 5 Question 13 Discussion

Actual exam question for Blockchain's CBDE exam
Question #: 13
Topic #: 5
[All CBDE Questions]

To send ether to a contract without a function call:

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Suggested Answer: A

by Quentin at May 03, 2022, 06:09 AM

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Silvana
10 months ago
B seems a bit off, isn't it always about having a payable fallback?
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Rikki
10 months ago
Really? I thought you couldn't send ether without a function call.
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Helaine
11 months ago
Wait, C is misleading. Fallback functions can receive ether!
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Barabara
11 months ago
Totally agree, A is the correct answer!
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Kerry
11 months ago
A fallback function must be payable to send ether, right?
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Izetta
11 months ago
Hmm, I'm a bit unsure about this one. Evaluating feedback from the customer ops team and reviewing installed base details seem like good options, but I'm not sure about the others. I'll need to think this through carefully.
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Jettie
11 months ago
I'm a little confused by the difference between the structural perspective and the behavioral perspective. I'll need to review my notes on requirements modeling to make sure I understand the distinctions between the different diagram types.
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Georgene
11 months ago
Hmm, this looks like a pretty straightforward economics question. I think I'll go with C - profit maximization, that seems like a key concept in economic theory.
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Veronika
11 months ago
Hmm, I'm a little unsure about this one. The question is asking about supplemental reporting standards, but the options seem to cover a range of different audit-related requirements. I'll need to think this through carefully.
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Sarah
11 months ago
Hmm, I'm a bit unsure about this one. I know Cron is a common scheduling tool, but I'm not sure how it integrates with the different GCP services. I'll need to think through the options carefully and make sure I understand the differences between them.
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