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Blockchain CBDE Exam - Topic 5 Question 123 Discussion

Actual exam question for Blockchain's CBDE exam

Question #: 123
Topic #: 5

[All CBDE Questions]

Events:

Aare stored on chain and are a great way to get a return value when a contract calls another contract.

Bare stored in something like a side-chain and cannot be accessed by contracts.

Care used primarily for debugging exceptions in solidity.

Show Suggested Answer

Suggested Answer: B

by Lucille at Mar 03, 2026, 04:37 PM

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Erasmo

7 days ago

C seems too limited. Events are more than just for debugging.

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Lashawnda

12 days ago

I’m leaning towards B. Side-chains have their own advantages.

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Brock

17 days ago

I agree, A makes sense. It’s all about efficiency in contracts.

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Ollie

22 days ago

I think A is the best choice. Events are super useful for getting return values.

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Ailene

27 days ago

C is too limited. Events have broader uses beyond just debugging.

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Antonio

1 month ago

B seems off. Side-chains don’t really fit with contract access.

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Denise

1 month ago

I agree, A makes sense. It’s efficient for contract interactions.

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Paulina

1 month ago

I think A is the best choice. Events are super useful for getting return values.

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Hannah

2 months ago

C is too limited. Events are more than just for debugging.

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Wilford

2 months ago

B seems off. Side-chains don’t really help contracts access events.

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Marilynn

2 months ago

I agree, A makes sense. It’s all about on-chain data.

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Kenny

2 months ago

I think A is the best choice. Events are super useful for getting return values.

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Azalee

2 months ago

A) is spot on, love how they help with contract interactions!

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Franklyn

2 months ago

Wait, are events really stored on-chain? I thought they were just logs!

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Jade

4 months ago

C) is a bit off, events are more than just for debugging.

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Nell

4 months ago

I disagree, B) is misleading; events can be accessed in some cases.

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Kenneth

4 months ago

A) is definitely true, events are super useful!

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Tiera

4 months ago

I thought events were only for logging, not for return values!

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Karrie

5 months ago

Wait, are events really stored on-chain? That seems odd.

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Gilberto

5 months ago

C) is a bit off, events are more than just for debugging.

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Armanda

5 months ago

I disagree, B) is misleading, events can be accessed in some cases.

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Margot

5 months ago

A) is definitely true, events are super useful!

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Melodie

5 months ago

I feel like option A makes the most sense, but I’m a bit confused about the side-chain concept mentioned in option B.

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Jimmie

6 months ago

I practiced a question similar to this, and I think events are primarily for tracking state changes rather than just debugging exceptions.

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Ezekiel

6 months ago

I remember something about events being useful for logging, but I can't recall if they can be accessed by contracts or not.

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Nida

6 months ago

I think events are definitely stored on-chain, but I'm not entirely sure how they relate to return values when calling other contracts.

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