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Blockchain CBDE Exam - Topic 4 Question 95 Discussion

Actual exam question for Blockchain's CBDE exam

Question #: 95
Topic #: 4

[All CBDE Questions]

The nonce-field in a transaction is used:

Ato protect against replay attacks.

Bto have an additional checksum for transactions.

Cto sum up all ethers sent from that address.

Show Suggested Answer

Suggested Answer: A

by Rosamond at Aug 08, 2024, 02:18 AM

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Cory

9 months ago

C is totally wrong, it doesn't sum ethers!

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Shelia

10 months ago

Nope, it's not a checksum.

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Adolph

10 months ago

Wait, are we sure about that?

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Alaine

10 months ago

Agreed, that's what I learned too.

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Mollie

10 months ago

It's definitely for replay attack protection!

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Luis

10 months ago

I'm leaning towards option A as well, but I wish I could recall more details about how it works in transactions.

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Marlon

11 months ago

I feel like the nonce-field might also have something to do with checksums, but that doesn't seem right for this question.

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Pearline

11 months ago

I remember practicing a similar question, and I think it was definitely related to security, possibly option A.

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Fabiola

11 months ago

I think the nonce-field is mainly about preventing replay attacks, but I'm not entirely sure.

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Leontine

11 months ago

The nonce is there to prevent replay attacks, right? I'm pretty sure that's the main purpose, so I'll go with option A.

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Gwenn

11 months ago

Wait, I thought the nonce was used for something else, like verifying the transaction or something. I'm not totally confident in my answer here. I'll have to guess and hope for the best.

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Ronnie

11 months ago

Okay, I remember learning about the nonce in class. I believe it's used to ensure each transaction is unique and can't be replayed. I'll select option A.

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Bobbye

11 months ago

Hmm, I'm a bit unsure about this one. I know the nonce has something to do with preventing double-spending, but I can't remember the exact purpose. I'll have to think this through carefully.

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Paris

11 months ago

I'm pretty sure the nonce field is used to protect against replay attacks, so I'll go with option A.

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Ollie

11 months ago

I'm a bit unsure about this one. I'll need to review the details on Process Builder and recursion to make sure I choose the right options.

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Refugia

11 months ago

I'm pretty sure the answer is Trojan, since that's the type of malicious code that can give a hacker control over a victim's system files.

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Jutta

1 year ago

Haha, summing up all the Ethers? That's a new one! Clearly, the nonce is used to prevent replay attacks. Option A for the win!

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Kathrine

1 year ago

Wait, the nonce is used to sum up all the Ethers sent from that address? That doesn't sound right at all. I'll go with Option A.

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Lashawn

1 year ago

User 3: Yeah, Option A makes more sense in terms of transaction security.

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Jin

1 year ago

User 2: I agree, I'll go with Option A too.

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Flo

1 year ago

User 1: I think the nonce is used to protect against replay attacks.

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Glory

1 year ago

I thought the nonce was used to calculate some kind of checksum for the transaction. Guess I was mistaken. Option A it is!

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Graciela

1 year ago

User 3: That's right, it helps prevent the same transaction from being processed multiple times.

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Thea

1 year ago

User 2: Yes, the nonce in a transaction is actually used to protect against replay attacks.

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Sherell

1 year ago

User 1: I thought the nonce was used to calculate some kind of checksum for the transaction. Guess I was mistaken. Option A it is!

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Naomi

1 year ago

I believe the nonce-field is also used to ensure the order of transactions from the same address.

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Lera

1 year ago

The nonce field is definitely used to protect against replay attacks. Option A is the correct answer.

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Audrie

1 year ago

Yes, option A is definitely the correct answer for the purpose of the nonce field.

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Aide

1 year ago

I think it's fascinating how the nonce field adds that level of protection.

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Lavonna

1 year ago

It's important to have that extra layer of security in transactions.

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Gilma

1 year ago

I agree, the nonce field is crucial for protecting against replay attacks.

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Glenna

1 year ago

I agree with Taryn, it helps prevent the same transaction from being executed multiple times.

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Taryn

1 year ago

I think the nonce-field is used to protect against replay attacks.

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