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Exin BLOCKCHAINF Exam - Topic 2 Question 33 Discussion

How does a private Blockchain differ from a public one? Choose all that apply.
D) A private Blockchain often requires the identity of users to be known
B) A private Blockchain is more efficient and has faster transaction times
A) A private Blockchain does not use proof of work consensus
C) A private Blockchain is not distributed

Exin BLOCKCHAINF Exam - Topic 2 Question 33 Discussion

Actual exam question for Exin's BLOCKCHAINF exam
Question #: 33
Topic #: 2
[All BLOCKCHAINF Questions]

How does a private Blockchain differ from a public one? Choose all that apply.

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Suggested Answer: D

by Raymon at Jan 22, 2026, 08:14 AM

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Devora
5 hours ago
True! Public blockchains can be slower with many users.
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Lashawna
5 days ago
Private blockchains are faster due to fewer nodes.
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Alease
11 days ago
And public ones allow anyone to validate transactions.
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Edna
16 days ago
Exactly! Private blockchains control who can join.
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Devora
21 days ago
Public ones are decentralized, private are not.
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Lashawna
26 days ago
Private ones have restricted access.
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Alease
1 month ago
Public blockchains are open to everyone.
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Edna
1 month ago
Private blockchains are permissioned.
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Floyd
3 months ago
Private blockchains usually have faster transaction speeds compared to public ones.
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Lashawn
3 months ago
I’m not sure about that. Aren't all blockchains supposed to be transparent?
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Olive
3 months ago
Wait, so private blockchains can restrict who accesses the data? That’s kinda wild!
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Tamala
3 months ago
Totally agree! Public blockchains are decentralized, private ones are controlled.
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Shawnee
3 months ago
Private blockchains are permissioned, while public ones are open to anyone.
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Michael
4 months ago
The private blockchain is like a VIP lounge, while the public one is like a mosh pit.
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Carman
4 months ago
The private blockchain is like a members-only gym, while the public one is like a free-for-all at the park.
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Lizette
4 months ago
The private blockchain is like a gated community, while the public one is like a bustling city street.
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Ettie
4 months ago
In a private blockchain, you need an invite to join the dance, but in a public one, anyone can cut a rug.
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Yaeko
4 months ago
The private blockchain is like a secret club, while the public one is like a crowded party.
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Gracie
4 months ago
I’m a bit confused about the consensus mechanisms. Do private blockchains use different ones than public ones? I feel like I read that somewhere.
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Chun
5 months ago
I practiced a question like this before! I think private blockchains can be faster because they have fewer nodes, but I’m not completely sure.
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Xuan
5 months ago
I remember something about permissions. Public blockchains are open to everyone, but private ones have restricted access. Not sure if that’s all there is to it, though.
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Delpha
6 months ago
I think private blockchains are more controlled, right? Like, only certain people can access them compared to public ones.
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Temeka
6 months ago
Ugh, I'm a little unsure about the specifics here. I know public and private blockchains have some key differences, but I'll need to review my notes to make sure I cover them all accurately.
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Rose
6 months ago
I've got a good handle on this topic. Private blockchains are typically used within organizations and have predefined participants, while public ones are open networks. I'll make sure to clearly explain those core differences.
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Selma
6 months ago
Okay, let me see. Public blockchains are decentralized and permissionless, while private ones have more centralized control and access restrictions. I'll make sure to hit those main distinctions.
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Margart
6 months ago
Hmm, this is a tricky one. I know public blockchains are open for anyone to join, but I'm a bit fuzzy on the access control and governance differences with private blockchains.
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Avery
6 months ago
I think I know the key differences between public and private blockchains, but I'll need to think through the specifics to make sure I cover all the important points.
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