MENU
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?
Suggested Answer: A
Get Premium CBSA Questions
as Interactive Web-Based Practice Test or PDF
Real Exam Format
Detailed Explanations
Instant Access
Get Your Practice Test
47 comments · newest first
EM
Emmanuel
12 months ago
Only use case for computational power? That's a stretch!
CR
Cristina
12 months ago
Centralization is a big issue, for sure.
KI
Kiley
12 months ago
Wait, is it really not profitable for miners anymore?
HA
Halina
1 year ago
Totally agree, the expenses are insane!
ON
Ona
1 year ago
POW requires huge energy costs.
TH
Thurman
1 year ago
I feel like the computational power aspect is a big deal, but I'm not confident if it's just about blockchain use cases, so option B seems tricky.
TE
Teri
1 year ago
I practiced a question similar to this, and I recall that miners can face profitability issues, so option D could be relevant too.
WI
Willard
1 year ago
I'm not entirely sure, but I think centralization could be a concern with POW, maybe option A?
LI
Lisha
1 year ago
I remember discussing how POW can lead to high energy costs, so I think option C might be a strong choice.
KA
Kami
1 year ago
This looks like a pretty straightforward question. I think the key is to focus on the requirements - we need to use the latest version of SQL Server and support the SQL Server Agent service, while minimizing administrative effort. Based on that, I'd say Azure SQL Managed Instance is the way to go.
LO
Loren
1 year ago
Hmm, I'm a little unsure about the distinction between the baseline and target architectures here. I'll need to re-read the TOGAF chapter to make sure I understand which diagrams and matrices are appropriate for each.
VE
Venita
1 year ago
I remember we discussed volume consolidation in class, and it seems like that might be the right answer here.
PA
Paul
1 year ago
I think there was a practice question that mentioned using Web3.js. But I'm unsure if it's really closed source or not.
TA
Tamie
1 year ago
I'm really uncertain about the differences in enrollment criteria. Wasn't one of them for nursing home certifiable patients only?
GA
Gary
1 year 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.
AN
An
1 year ago
I agree, the high energy costs of POW can really add up. It's definitely a major disadvantage.
DA
Dana
1 year ago
D) Not profitable for miners
NA
Nadine
1 year ago
C) Large expenditures for computational power
EL
Ellsworth
1 year ago
A) Centralization of blockchain control
MA
Margarita
1 year ago
Yes, the 51% attack mitigation is definitely an advantage, but the high energy costs are a major downside.
FR
France
1 year ago
E) 51% attack mitigation
PA
Paola
1 year ago
C) Large expenditures for computational power
CA
Carla
1 year ago
A) Centralization of blockchain control
KI
Kimberlie
1 year 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?
AS
Ashton
1 year ago
E) 51% attack mitigation
SA
Sanda
1 year ago
C) Large expenditures for computational power
CL
Clare
1 year ago
A) Centralization of blockchain control
KA
Kate
1 year 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!
ED
Edelmira
1 year ago
E) 51% attack mitigation
LE
Leonor
1 year ago
C) Large expenditures for computational power
CA
Carmelina
1 year ago
A) Centralization of blockchain control
ES
Essie
2 years 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.
SE
Selma
1 year 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.
KA
Karan
1 year ago
C) Large expenditures for computational power
FA
Fanny
1 year ago
B) Only use case for computational power is blockchain
AL
Albert
1 year ago
A) Centralization of blockchain control
CH
Chauncey
1 year ago
I agree, C is definitely a major disadvantage. The amount of computational power required can be a barrier for many miners.
ME
Melita
1 year ago
C) Large expenditures for computational power
JO
Jospeh
1 year ago
E) 51% attack mitigation
JA
Jacki
1 year ago
A) Centralization of blockchain control
PA
Paris
2 years 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.
CO
Cora
1 year ago
C) Large expenditures for computational power
LU
Luther
1 year ago
B) Only use case for computational power is blockchain
FR
France
1 year ago
A) Centralization of blockchain control
CA
Casandra
2 years ago
E) 51% attack mitigation is an important factor to consider when discussing disadvantages of using a POW algo.
ZO
Zona
2 years ago
C) Large expenditures for computational power can be a drawback for using a POW algo.
MI
Ming
2 years ago
A) Centralization of blockchain control is a major disadvantage of using a POW algo.