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Blockchain Exam CBDE Topic 4 Question 80 Discussion

Actual exam question for Blockchain's CBDE exam

Question #: 80
Topic #: 4

[All CBDE Questions]

When you are programming a game like poker of battleships where you need to hide opponents values is:

Awith private state variables. This way nobody else other than the smart contract itself can see the information

Bwith external contracts holding those values. This way we can make sure that the information flow is following a clear logic and nobody else can access this information.

CYou can't hide anything on the blockchain, because the information is public, just the call is private which means only other smart contracts would be limited in accessing that information.

Show Suggested Answer

Suggested Answer: A

by Belen at Dec 26, 2023, 03:40 PM

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Bulah

13 days ago

I don't know, man. Hiding stuff on the blockchain? Sounds like a job for a magician, not a programmer!

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Na

14 days ago

A) Yep, that's the way to go. Private state variables all the way! Keeps the game fair and square.

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Lelia

15 days ago

C) Haha, that's true! You can't really hide anything on the blockchain. Might as well just embrace the transparency!

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Gilbert

17 days ago

B) That's an interesting approach, but I'm not sure it's the best option. Keeping everything within the smart contract seems more straightforward.

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Silva

1 months ago

A) Looks good! Hiding state variables within the smart contract itself is a great way to keep opponent values private.

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Helaine

2 months ago

I think both options have their merits, but ultimately on the blockchain, the information is public.

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Lorean

2 months ago

I disagree, I believe using external contracts to hold those values is more secure.

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Rodrigo

2 months ago

I think the best way to hide opponents values is with private state variables.

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Lonny

2 months ago

But wouldn't that make the information more vulnerable to external attacks?

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Dorian

2 months ago

I disagree, I believe external contracts holding those values is more secure.

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Lonny

2 months ago

I think the best way is to use private state variables.

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