Blockchain CBSA Exam - Topic 1 Question 99 Discussion

Actual exam question for Blockchain's CBSA exam

Question #: 99
Topic #: 1

Which of these demonstrates the correct order of the lifecycle of a transaction on Ethereum blockchain?

A1. User uses Dapp/web3 to start transaction2. User signs the transaction with their private key3. Transaction validated on locally running node4. Transaction broadcast to entire network5. Miners choose to accept or pass on the transaction6. Miner takes each accepted transaction and writes it to the current block

B1. User uses Dapp/web3 to start transaction2. Transaction broadcast to entire network3. If accepted by the network, user signs transaction with private key4. Miners choose to accept or pass on the transaction5. Miner takes each accepted transaction and writes it to the current block

CBoth of these ordering sequences can occur

DNone of the above

Show Suggested Answer

Suggested Answer: A

by Hillary at Mar 06, 2026, 07:38 PM

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Joaquin

4 days ago

Totally agree with A, that's how it works!

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Gilberto

9 days ago

Wait, how can you sign a transaction after broadcasting it?

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Rossana

14 days ago

I think C makes sense too, both can happen.

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Bernadine

20 days ago

A is definitely the right order!

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Edison

25 days ago

I’m confused about the order; I thought the transaction was broadcasted first, but I guess it’s more about the signing process. Maybe option C is possible?

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Eve

30 days ago

I practiced a similar question, and I think both A and B have some valid points, but I lean towards A being correct.

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Shaniqua

1 month ago

I'm not entirely sure, but I feel like the transaction needs to be validated by the node before it's sent out to the network.

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Salina

1 month ago

I remember that the user usually signs the transaction before it's broadcasted to the network, so I think option A makes more sense.

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