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What are two challenges with using a Proof of Work algorithm? (Select two.)
Suggested Answer: C, D
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30 comments · newest first
LE
Lenna
6 months ago
I wonder if people realize how unsustainable it is.
CA
Cassandra
7 months ago
I chose C and D as well. The expenses just keep rising.
FR
France
7 months ago
Definitely! Power consumption is a huge environmental concern too.
AU
Audrie
7 months ago
I feel like the costs really limit participation.
SV
Svetlana
7 months ago
Agreed! Mining is super expensive and uses so much power.
WI
Wilda
7 months ago
I think C and D are the biggest issues.
CE
Ceola
7 months ago
Yeah, the environmental impact is a huge issue too.
SH
Shawna
8 months ago
Mining pools are actually allowed, right?
LI
Lili
8 months ago
Totally agree, power intensive for sure.
EN
Enola
8 months ago
It's super expensive to mine!
TE
Teri
9 months ago
C) Expensive? More like "Wallet-Emptying"! And D) Power Intensive? I think my entire neighborhood could power a small country.
JU
Julieta
9 months ago
I'm just glad I don't have to mine for Bitcoins in my backyard. That would be a real workout!
JA
James
9 months ago
Proof of Work is like running a marathon with a sledgehammer - it's tough and energy-draining!
RH
Rhea
9 months ago
C) Expensive and D) Power Intensive are the correct answers.
JO
Johnna
9 months ago
I feel like mining pools being allowed is a non-issue, but I can't remember if that's related to the challenges of Proof of Work.
GL
Gladys
9 months ago
I practiced a question like this before, and I think the difficulty rate doesn't actually go down every year. That might be a misconception.
SH
Shawna
10 months ago
I'm not entirely sure, but I think the cost of mining equipment could be a challenge too? It seems like it gets more expensive over time.
BI
Billy
10 months ago
I think one challenge is definitely the power intensity. I remember reading about how much energy mining consumes.
SH
Sherita
10 months ago
Easy peasy! The power consumption and cost of Proof of Work are definitely the two main challenges here. I'll confidently select C and D.
RO
Rolande
10 months ago
I'm a little confused on this one. I know Proof of Work has some drawbacks, but I'm not sure if mining pools being disallowed is actually one of them. I'll have to review my notes before answering this.
EL
Elina
10 months ago
Okay, let's see here. I think the power usage and expense of mining are the two biggest issues with Proof of Work. The difficulty rate changing doesn't seem like a major challenge to me. I'll mark C and D.
JO
Joanna
11 months ago
Nailed it! C) and D) are the way to go. Now, if only I could mine some crypto while I sleep...
TA
Tatum
11 months ago
Wait, the difficulty rate goes down every year? That sounds off.
LE
Levi
11 months ago
Hmm, I'm not totally sure about this one. I know Proof of Work is energy-intensive, but I'm not sure if the difficulty rate going down is actually a challenge. I'll have to think this through a bit more.
TY
Tyisha
11 months ago
This one seems pretty straightforward. I'd go with C and D - the power usage and cost of mining are definitely challenges with Proof of Work.
CH
Chau
6 months ago
We need better alternatives for mining.
ME
Meaghan
6 months ago
Yeah, it's not sustainable long-term.
LY
Lynette
6 months ago
And the power consumption is just crazy!
CA
Cassi
6 months ago
Totally! The costs are insane.
CA
Carline
10 months ago
I agree, C and D make the most sense.