Blockchain CBSA Exam - Topic 8 Question 37 Discussion

Actual exam question for Blockchain's CBSA exam

Question #: 37
Topic #: 8

[All CBSA Questions]

On the Ethereum blockchain the ''nonce'' of a transaction:

AHolds the gas amount to be paid to the miner writing the block that contains the transaction

BIs used to ensure that transactions by a given account are written in sequential order

CIs reset to zero after each successfully mined blocked

DMust always start with four zeroes

Show Suggested Answer

Suggested Answer: A

by Keneth at Oct 25, 2022, 05:11 AM

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Sherita

4 months ago

So it doesn't reset to zero after each block? That's surprising!

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Gregoria

4 months ago

Nope, that's a common misconception!

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Gerald

4 months ago

Wait, I thought it was just for mining difficulty?

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Alesia

5 months ago

Totally agree, it's crucial for keeping things in line.

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Tandra

5 months ago

The nonce is all about transaction order!

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Carman

5 months ago

I definitely remember something about the nonce needing to start with zeroes, but I thought that was more about mining than transactions.

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Adell

5 months ago

I feel like the nonce is reset after a block is mined, but I can't recall if that's the main purpose of it.

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Brittni

5 months ago

I remember practicing a question about gas fees, but I don't think the nonce holds that information.

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Rosio

5 months ago

I think the nonce is related to the order of transactions, but I'm not completely sure if it's specifically about sequential order.

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Okay, I think the key here is understanding the design requirements of a MIL test environment. Based on that, I'm leaning towards D as the correct answer, since the environment would need a real-time capable computer to capture all relevant signals.

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Fernanda

5 months ago

Okay, let's think this through. The question is asking about configuring a QoS scheduling policy on traffic received from transport side tunnels. I'm guessing the correct answer has something to do with a QoS command specific to that device or environment.

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Mari

5 months ago

I'm a little confused by the different method names in the options. I'll need to think through each one carefully to determine which one actually retrieves a single update.

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Stephaine

5 months ago

I'm a little confused by the terminology here. What's the difference between a virtual switch and a VNIC? I'll need to review my networking concepts before selecting an answer.

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Kenny

10 months ago

Option B is the correct answer. The nonce is a counter that prKennynts double-spending by ensuring transactions are processed in order.

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Madelyn

10 months ago

Haha, the nonce starting with four zeroes? Someone's been playing too much World of Warcraft, I think.

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Dottie

10 months ago

Four zeroes? Really? That's just silly. The nonce is a number, not a magic password.

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Leota

9 months ago

C) Is reset to zero after each successfully mined blocked

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Nicholle

9 months ago

B) Is used to ensure that transactions by a given account are written in sequential order

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Cassie

9 months ago

A) Holds the gas amount to be paid to the miner writing the block that contains the transaction

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Tommy

10 months ago

I thought the nonce had to do with mining difficulty, not transaction order. Guess I need to review the Ethereum basics again.

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Rosendo

9 months ago

A) Holds the gas amount to be paid to the miner writing the block that contains the transaction

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Wade

9 months ago

C) Is reset to zero after each successfully mined blocked

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Madalyn

9 months ago

B) Is used to ensure that transactions by a given account are written in sequential order

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Destiny

11 months ago

The nonce is used to ensure sequential order of transactions, not for gas amounts. That's option B.

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Essie

8 months ago

No problem, happy to help!

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Elroy

8 months ago

I wasn't sure about that, thanks for clarifying.

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Staci

9 months ago

Yes, you are correct. The nonce is indeed used for that purpose.

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Bulah

9 months ago

I think the answer is B) Is used to ensure that transactions by a given account are written in sequential order

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Santos

9 months ago

I agree, it's a crucial part of how transactions are processed

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Ellen

9 months ago

Yeah, it's important for keeping transactions in order on the blockchain

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Tennie

10 months ago

That makes sense, the nonce is definitely not for gas amounts

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Hillary

10 months ago

I think the answer is B) Is used to ensure that transactions by a given account are written in sequential order

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Jacquelyne

11 months ago

Hmm, that's a good point. I see why it could be A now.

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Heike

11 months ago

I disagree, I believe the answer is A. It's about the gas amount paid to miners.

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Jacquelyne

11 months ago

I think the answer is B. It makes sense to ensure transactions are in order.

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