Blockchain CBDE Exam - Topic 1 Question 121 Discussion

Actual exam question for Blockchain's CBDE exam

Question #: 121
Topic #: 1

Externally Owned Accounts (EoA):

Aare changing their address every time a Transaction is sent because of the nonce.

Bare keeping their address, but on the blockchain a nonce is increased every time they send a transaction to avoid replay attacks.

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Suggested Answer: A

by Evangelina at Jan 05, 2026, 05:16 AM

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Shalon

4 days ago

I think B is correct. The address stays the same, right?

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Raina

9 days ago

Just learned about replay attacks, this is interesting!

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Malinda

15 days ago

Totally agree with B, nonce is key for security!

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Joseph

20 days ago

Wait, are you sure about that? Sounds off.

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Weldon

25 days ago

I thought they changed addresses too, but B makes sense.

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Cassi

1 month ago

B is correct, they keep the same address.

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Markus

1 month ago

Nonces, addresses, blockchain - it's all Greek to me! I'll just guess and hope for the best on this one.

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Myong

1 month ago

Wait, so the address doesn't change, but the nonce does? I'm going to need to re-read that section of the study guide.

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Ellsworth

2 months ago

I'm pretty sure the address stays the same, but the nonce is what changes to prevent replay attacks. Gotta love those blockchain technicalities!

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Felicia

2 months ago

Hmm, I thought the nonce was just a number that gets incremented with each transaction to prevent duplicates. This blockchain stuff can get pretty confusing!

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Skye

2 months ago

The nonce is definitely the key to avoiding replay attacks, but I'm not sure if it's the address that changes or just the nonce itself.

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Martina

3 months ago

I might be confused, but I thought EoAs change their address with every transaction. Is that really how it works?

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Rocco

3 months ago

I practiced a similar question, and I believe the nonce is just a counter that helps maintain the integrity of transactions.

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Valentin

3 months ago

I'm not entirely sure, but I remember something about nonces being important for transaction security.

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Maybelle

3 months ago

I think EoAs keep their address the same, but the nonce changes with each transaction to prevent replay attacks.

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Lauran

3 months ago

Ah, I see now. The address doesn't change, but the nonce is used to prevent replay attacks by incrementing with each transaction. Good to know for the test.

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Lavonna

3 months ago

I've got this one! The address stays the same, but the nonce goes up with each transaction to stop replay attacks. Gotta remember that for the exam.

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Brittni

4 months ago

Wait, I'm a bit confused. Does the address change or does the nonce just get incremented? I need to make sure I have this concept clear before the exam.

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Augustine

4 months ago

Okay, so the nonce is increased with each transaction to prevent replay attacks, but the address itself doesn't change, right? I think I understand this one.

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Gilma

4 months ago

Hmm, I think the nonce is used to prevent replay attacks, but I'm not sure if the address changes every time. I'll need to review that part.

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