Blockchain Exam CBSA Topic 5 Question 39 Discussion

Actual exam question for Blockchain's CBSA exam

Question #: 39
Topic #: 5

[All CBSA Questions]

You have flown to NYC to have a discussion with a technical executive of a too big to fail bank. You are having a discussion about blockchain algos and the customer is asking what are some disadvantages of using a POW algo?

ACentralization of blockchain control

BOnly use case for computational power is blockchain

CLarge expenditures for computational power

DNot profitable for miners

E51% attack mitigation

Show Suggested Answer

Suggested Answer: A

by Rhea at Dec 06, 2022, 07:00 AM

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Gary

1 months ago

The 51% attack mitigation is an advantage, not a disadvantage! But I agree that the huge energy costs of POW are a major downside. Gotta love those high electricity bills.

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France

3 days ago

E) 51% attack mitigation

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Paola

4 days ago

C) Large expenditures for computational power

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Carla

15 days ago

A) Centralization of blockchain control

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Kimberlie

1 months ago

I'm going to go with C. Spending a ton of money on computational power doesn't sound like a very efficient or sustainable model for a blockchain network. Maybe they should look into Proof-of-Stake instead?

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Clare

18 days ago

A) Centralization of blockchain control

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Kate

1 months ago

Haha, can you imagine how much it must cost to run a POW blockchain? The electric bill alone would be enough to bankrupt a small country!

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Edelmira

13 days ago

E) 51% attack mitigation

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Leonor

16 days ago

C) Large expenditures for computational power

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Carmelina

18 days ago

A) Centralization of blockchain control

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Essie

2 months ago

Hmm, I think B and C are both good options. The fact that the only use case for the computational power is the blockchain itself is a major disadvantage of the POW algorithm.

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Karan

5 hours ago

C) Large expenditures for computational power

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Fanny

5 days ago

B) Only use case for computational power is blockchain

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Albert

13 days ago

A) Centralization of blockchain control

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Chauncey

22 days ago

I agree, C is definitely a major disadvantage. The amount of computational power required can be a barrier for many miners.

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Melita

28 days ago

C) Large expenditures for computational power

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Jospeh

1 months ago

E) 51% attack mitigation

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Jacki

2 months ago

A) Centralization of blockchain control

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Paris

2 months ago

The correct answer is C. Large expenditures for computational power. Proof-of-Work (POW) algorithms require a significant amount of computational power, which can be quite costly for miners and the overall network.

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