Session 3 recap

Session 3 recap

6th - 8th Grade

5 Qs

quiz-placeholder

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Session 3 recap

Session 3 recap

Assessment

Quiz

Computers

6th - 8th Grade

Practice Problem

Hard

Created by

Ken Choi

Used 2+ times

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

工作量證明(Proof of Work)中, 什麼是51%攻擊?

礦工只得到51%的回報。

51%礦工停止工作, 導致區塊鏈停運。

單一組織能夠控制大多數雜湊率,使攻擊者將有足夠的挖礦能力來有意排除或修改交易的順序。

交易者多於51%, 令區塊鏈交易失效。

2.

MULTIPLE SELECT QUESTION

1 min • 1 pt

星巴克於 2019 年與微軟區塊鏈技術結合,讓消費者得以 (選擇兩個正確答案)

追蹤全球咖啡豆生產線

幫助消費者了解食物來源

提升銷售

擴建分店

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

哪個國家正加強中學生對比特幣的相關知識, 以增加比特幣採用率?

薩爾瓦多

比利時

中國

南斯拉夫

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

第一款把智能合約(Smart Contract)應用在區塊鏈上的例子是...

Bitcoin

比特幣

Dogecoin

狗狗幣

姜濤幣

Ethereum

以太坊

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

比特幣礦工傾向把礦場搬到什麼地方?

電力資源豐富

而且價格低廉

高溫乾燥的城市

海拔高而且無人的

偏遠山區

金屬資源豐富的礦場

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