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Blockchain CBDE Exam - Topic 1 Question 83 Discussion

Actual exam question for Blockchain's CBDE exam

Question #: 83
Topic #: 1

[All CBDE Questions]

Consensus is reached:

Aby the miner nodes which make sure that a transaction is valid.

Bby every single node in the blockchain network executing the same transaction.

Cby a cryptographic secure signature algorithm called ECDSA which makes sure that cheating is impossible.

Show Suggested Answer

Suggested Answer: A

by Cristy at Mar 06, 2024, 09:06 PM

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Darrin

9 months ago

I agree with B, full network consensus is key!

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Veronique

10 months ago

C is interesting, but not really how consensus works.

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Rosann

10 months ago

Wait, is it really just miners? Sounds off.

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Albert

10 months ago

Definitely A, miners validate transactions.

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Naomi

10 months ago

I think it's B, all nodes need to agree.

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Hoa

10 months ago

I vaguely recall something about ECDSA being important for security, but I don't think it directly relates to how consensus is reached.

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Lucina

11 months ago

I feel like option B makes the most sense since all nodes need to agree, but I could be mixing it up with another topic we covered.

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Elfrieda

11 months ago

I remember practicing a question about miners validating transactions, so I might lean towards option A, but it feels a bit vague.

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Francesco

11 months ago

I think consensus is reached by every single node, but I'm not entirely sure if that's the only way it can happen.

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Johnson

11 months ago

Option B sounds plausible, but I'm not totally confident that's the right approach. I'll review the material again to make sure I understand the consensus mechanism.

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Blondell

11 months ago

Hmm, I'm a bit unsure about this one. I'll need to think it through carefully before selecting an answer.

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Karina

11 months ago

This question seems straightforward, I think the answer is A. The miner nodes are responsible for validating transactions and reaching consensus.

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France

11 months ago

The ECDSA signature algorithm is important for security, but I don't think that's the key to how consensus is reached. I'm leaning towards A or B.

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Brittni

11 months ago

Hmm, this looks like a tricky one. I'll need to think carefully about the features supported by Cisco ASAv in the AWS cloud.

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Fletcher

11 months ago

This seems like a tricky one. I'll need to think through the relationship between the Vendor and Account objects carefully.

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Aide

1 year ago

Haha, the options are like a choose-your-own-adventure for blockchain nerds. I'm gonna go with the one that sounds the most 'cryptographically secure'!

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Basilia

1 year ago

User 3: Definitely, can't go wrong with a secure algorithm.

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Jacob

1 year ago

User 2: Yeah, I agree. It's all about that security.

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Daren

1 year ago

User 1: I think it's option C, the cryptographic secure signature algorithm sounds legit.

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Chery

1 year ago

User 4: Option C it is then, let's go with the cryptographic secure signature algorithm.

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Wilburn

1 year ago

User 3: I agree, it's important to have a system that makes cheating impossible.

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Aleta

1 year ago

User 2: Yeah, that one sounds like the most secure way to reach consensus.

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Ma

1 year ago

User 1: I think it's option C, the cryptographic secure signature algorithm.

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Lenny

1 year ago

The ECDSA algorithm in option C does sound like it could help with security, but I'm not sure if that alone ensures consensus.

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Nieves

1 year ago

Option B seems like a logical choice, as the whole network needs to agree on the transaction for it to be valid.

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Marshall

1 year ago

B) by every single node in the blockchain network executing the same transaction.

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Gearldine

1 year ago

A) by the miner nodes which make sure that a transaction is valid.

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Serina

1 year ago

I agree with the option C, the ECDSA algorithm ensures cheating is impossible.

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Charlene

1 year ago

I believe every single node in the blockchain network executes the same transaction.

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Eliz

1 year ago

I think option A is correct. The miner nodes are responsible for validating the transactions and ensuring consensus in the network.

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Mirta

1 year ago

Exactly, without the miner nodes, there would be no consensus in the blockchain network.

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Winifred

1 year ago

So, consensus is reached by the miner nodes confirming the transactions.

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Georgeanna

1 year ago

Yes, they are the ones who make sure that the transactions are valid and secure.

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Jolene

1 year ago

I agree, the miner nodes play a crucial role in validating transactions.

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Tiffiny

1 year ago

I think consensus is reached by the miner nodes.

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