During which of these time periods did Bitcoin experience the largest drop in it's percentage of total market capitlization among all cryptocurrencies?

• February 2017 to June 2017

• August 2018 to January 2019

• March 2019 to June 2019

• December 2014 to April 2015

• August 2018 to October 2018 AND December 2017 to January 2018 are tied for the largest drop.

Which of these things are combined to generate the result in "duckdice.io"'s dice game?

• Sever Seed

• Server Secret

• Client Seed

• Nonce

• Hash Salt

As of January 18 2020, the online casino DuckDice allows players to play their games using a total of ___ different cryptocurrencies.

(Players may deposit using non-supported cryptocurrencies, and they will be converted into a desired cryptocurrency that IS supported.)

• 14

• 12

• 21

• 19

• 16

Select all cryptocurrencies that the online casino DuckDice does NOT support directly.

(Players may deposit using non-supported cryptocurrencies, and the deposit will be converted into the players' desired cryptocurrency that IS supported.)

• Bitcoin

• EOS

• Dogecoin

• Gamecredits

• Siacoin

Which of these cryptocurrencies is very well known for pulling off the largest exit scheme in cryptocurrency?

(Cryptocurrencies are expressed as shortened names, commonly used in exhcanges. Ex: Bitcoin = BTC)

• XMR

• ETC

• BCC

• PASC

• BCD

When doing a buy/sell transaction on Coinbase, a cryptocurrency exchange a fixed $2.99 fee is charged for transactions more than $____ but less than $____.

• 45, 135

• 25, 125

• 100, 300

• 50, 200

• None of these are correct.

比特币今年几岁？Select the answer that A) answers the question and B) is a true statement.

• Bitcoin has maintained a price of around 8000$ in 2020 so far.

• Bitcoin is currently 11 years old.

• There is currently about 18 million Bitcoin in circulation.

• Lucy needs a boyfriend.

• Yes, many people do enjoy using Bitcoin.

Below is an excerpt from an entry from "en.bitcoin.it" which is a Bitcoin wiki. However the entry has been modified here to be different from the wiki. Using your knowledge of cryptocurrency, identify the errors. (Note that the new edits may be factually correct, but they still differ from the wiki page.)

Early Bitcoin client versions allowed users to use their GPUs to mine. The advent of ASIC mining made GPU mining financially unwise as the hashrate of the network grew to such a degree that the amount of bitcoins produced by CPU mining became lower than the cost of power to operate a CPU. The option was therefore removed from the core Bitcoin client's user interface.

• Replace any instances of "GPU" with "CPU"

• Replace any instances of "ASIC" with "GPU"

• Replace any instances of "core" with "official"

• Replace the one instance "hashrate" with "the electrical cost"

• Replace the one instance of "bitcoins" with "Bitcoin"

On June 9th, 2011 the Bitcoin per block block reward was ____ BTC. On December 25th, 2017 the Bitcoin per blockblock reward was ___ BTC. On October 31st, 2018 the Bitcoin per block block reward was ___ BTC.

• 50/50/12.5

• 100/50/25

• 25/25/25

• 25/50/75

• 50/12.5/12.5

BOSS LEVEL QUESTION - Choose all incorrect statements.

• In Block 124724 a user named "midnightmagic" (without quotes) mined a solo block, thus all Bitcoin supply estimates need to be reduced by 1 Satoshi.

• As of January 1 2020 Bitcoin's block reward is expected to halve sometime in July 2020.

• Bitcoin's market cap dominance percentage across all cryptocurrencies has increased starting on January 1st 2019 to January 1st 2020.

• 1 Bit (measurement of Bitcoin) is worth less than 1 Satoshi (another measurement of Bitcoin)

• 1mBTC = 1000 Bits