Test Yourself: Are You the Ultimate Bitcoin Expert? - page 3.

iqbal14st

sr. member

Activity: 504

Merit: 250

Quote from: Lauda on July 22, 2015, 07:58:29 AM

Too easy? I doubt that. This test contains various questions, and some that Bitcoin users do not need to know (e.g. Merkle tree). I've made a few smaller mistakes that I hate to admit.

I'm not satisfied with my score nor the test. It sometimes takes more time than it should for verifying the answer and going to the next question.

You got 35 out of 51 right! Grin

You're a fellow Bitcoiner!

I'm not too understand with the English language .. Roll Eyes

iqbal14st

sr. member

Activity: 504

Merit: 250

Her website is too heavy to open it .. Undecided

superresistant

legendary

Activity: 2156

Merit: 1131

Quote from: Lauda on July 22, 2015, 09:19:51 AM

Quote from: superresistant on July 22, 2015, 08:27:17 AM

Someone explain me the link between "coin days destroyed" and the requirement for fees ?
This question made me mad.
Also a question state that you cannot change a transaction under any circumstances which I don't agree, what's double spending then ?
And what if there is only one full Bitcoin node running in the world and someone edit the database ?

Yeah these are the 2 questions that got me as well. Miners can change a transaction under special circumstances is indicated as false. This is a mistake, made by whoever made this quiz.
Well the idea of 'coin days destroyed' was implemented to efficiently measure the economic activity in Bitcoin. Someone could manipulate the statistics sending his coins back and forth non stop, and for this very reason it was implemented. The purpose behind it is to give more weight to coins which haven't been used for some time. 10 Bitcoin which haven't been used for 20 days count as 200 spent yesterday.
However, I do not know how this is related to fees and I've made a mistake there as well.

I understood about coin days destroyed.
Coin days destroyed are the number of bitcoins sent in the transaction multiplied by the days without moving them.
We know that :

Code:

priority = sum(input_value_in_base_units * input_age)/size_in_bytes

So the priority increase as coin days destroyed increase. It was simple as that.

That's why we see big amount of BTC sent and confirmed very fast without any fees.

Lauda

legendary

Activity: 2674

Merit: 2965

Terminated.

Quote from: superresistant on July 22, 2015, 08:27:17 AM

Someone explain me the link between "coin days destroyed" and the requirement for fees ?
Also a question state that you cannot change a transaction under any circumstances which I don't agree, what's double spending then ?

Yeah these are the 2 questions that got me as well. Miners can change a transaction under special circumstances is indicated as false. This is a mistake, made by whoever made this quiz.
Well the idea of 'coin days destroyed' was implemented to efficiently measure the economic activity in Bitcoin. Someone could manipulate the statistics sending his coins back and forth non stop, and for this very reason it was implemented. The purpose behind it is to give more weight to coins which haven't been used for some time. 10 Bitcoin which haven't been used for 20 days count as 200 spent yesterday.

However, I do not know how this is related to fees and I've made a mistake there as well.

Quote from: DannyHamilton on July 22, 2015, 09:05:06 AM

However, I'm confident that at least 7 questions had only incorrect answers to choose from. I managed to guess which incorrect answer the quiz was expecting on 3 of those questions.

Additionally there was 1 question that I misunderstood due to it being phrased in a confusing way.

I'm going to assume that you know the answer to this question. Please explain if you have time.

Quote from: superresistant on July 22, 2015, 08:27:17 AM

Someone explain me the link between "coin days destroyed" and the requirement for fees ?

You've asked this question, which I've yet to see an answer for.

DannyHamilton

legendary

Activity: 3472

Merit: 4801

Got 46 out of 51 right.

However, I'm confident that at least 7 questions had only incorrect answers to choose from. I managed to guess which incorrect answer the quiz was expecting on 3 of those questions.

Additionally there was 1 question that I misunderstood due to it being phrased in a confusing way.

superresistant

legendary

Activity: 2156

Merit: 1131

Someone explain me the link between "coin days destroyed" and the requirement for fees ?
This question made me mad.

Also a question state that you cannot change a transaction under any circumstances which I don't agree, what's double spending then ?
And what if there is only one full Bitcoin node running in the world and someone edit the database ?

EDIT : Got 45 btw

NorrisK

legendary

Activity: 1946

Merit: 1007

Was quite ok the test. Some questions were a bit hazy, which led to some mistakes, but I think I did quite well Wink

You got 42 out of 51 right!
You're a Bitcoin guru!

You're one of the most bitcoin educated people out there. Amazing job on completing this quiz with such a high score. We'd love to get more ideas for questions from people who have such extensive knowledge about Bitcoin like yourself. If you have an idea just fill out the form below this quiz.

Lauda

legendary

Activity: 2674

Merit: 2965

Terminated.

Too easy? I doubt that. This test contains various questions, and some that Bitcoin users do not need to know (e.g. Merkle tree). I've made a few smaller mistakes that I hate to admit.

I'm not satisfied with my score nor the test. It sometimes takes more time than it should for verifying the answer and going to the next question.

LiteCoinGuy

legendary

Activity: 1148

Merit: 1014

In Satoshi I Trust

Test Yourself: Are You the Ultimate Bitcoin Expert?

https://99bitcoins.com/test-yourself-are-you-the-ultimate-bitcoin-expert/

a little bit too easy (at least the first 25 Cheesy

) but give it a try Wink

Topic: Test Yourself: Are You the Ultimate Bitcoin Expert? - page 3. (Read 1989 times)