Review for Cryptocurrency Quiz

Review of Cryptocurrency Quiz

By Ms. Nelson

Multiple Choice

Many governments and banks know little about cryptocurrency.

• True

• False

Multiple Choice

Funds in a bank account are an example of cryptocurrency.

• True

• False

Multiple Choice

Cryptocurrencies are stored as records in a database.

• True

• Fales

Multiple Choice

Cryptocurrencies need banks to make transactions.

• True

• False

Multiple Choice

Banks keep cryptocurrencies in their vaults.

• True

• False

Multiple Choice

People can transfer cryptocurrency on a P2P network.

• True

• False

Multiple Choice

A P2P network has no central server.

• True

• False

Multiple Choice

Governments regulate cryptocurrency.

• True

• False

Multiple Choice

Cryptocurrency are physical coins.

• True

• False

Multiple Choice

What is a blockchain?

• A

• B

• C

• D

Multiple Choice

What is a distributed ledger?

• A

• B

• C

• D

Multiple Choice

Which statements about blocks is not true?

• A

• B

• C

• D

Multiple Choice

What is a node?

• A

• B

• C

• D

Multiple Choice

What is cryptocurrency mining?

• A

• B

• C

• D

Multiple Choice

What makes blockchains a safe technology?

• A

• B

• C

• D

Multiple Choice

What is used to identify a block?

• A

• B

• C

• D

Reorder

Reorder the following: The steps below are performed in a transaction of a cryptocurrency . Order them from first to last.

First one is a transaction is requested.

• Several transaction requests are grouped in a block.

• A block is sent to all nodes.

• Users validate transactions.

• A block is added to the blockchain.

• Transactions are completed.

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Drag and Drop

A​ ​ ​

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is needed to make a request for a Bitcoin transactions.

When a transaction request has been made , all​ users ​ of the ​

Placeholder

can see it.

A block is a ​

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Miners​ ​

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the transaction details, and try to solve the key of the block.

A block is added to the chain when ​ ​

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of the network confirms the transaction is correct.

Drag these tiles and drop them in the correct blank above

Bitcoin Wallet

networks

group of transactions.

check

half of the users (nodes)

block chain

Bitcoins

computer

dig

all of the users (nodes)

Match

Match the following

• The rate at which a computer can guess a key.

• Miners check whether a transaction request is valid with information from the ....

• A key contains data of a message.

• A system in which a hash can only be obtained with a certain amount of work.

• The number of bitcoins that can be mined is .... every four years.

Hash Rate

Distributed Ledger

Hash

Proof of work

Halved

• Hash Rate

• Distributed Ledger

• Hash

• Proof of work

• Halved

Multiple Choice

Bitcoin is the first ever cryptocurrency. (Not first to survive).

• True

• False

Multiple Choice

The first forms of cryptocurrency experienced the double spending problems.

• True

• False

Multiple Choice

The earliest forms of cryptocurrency emerged about 35 years ago.

• True

• False

Multiple Choice

Bitcoin was created by someone calling themself Satoshi Nakamoto.

• True

• False

Multiple Choice

No one knows the true identity of the developer of Bitcoins.

• True

• False

Multiple Choice

The cryptocurrencies that were developed after Bitcoins are known as altcoins.

• True

• False

Drag and Drop

The Chinese were the first to use

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and ​notes as currencies. Some ancient coins have holes in the middle so that they show how​

Placeholder

.

Drag these tiles and drop them in the correct blank above

coins

gold

silver

paper money

they can be put together line a chain

they can be rings on finger

they can show they can be bracelets

Match

Match the following

• Bitcoin

• Litecoin

• Ripple

• Ethereum

Developed blockchain technology and used

Has fast transaction time.

Developed for banks

Advance version of blockchain technology

• Developed blockchain technology and used

• Has fast transaction time.

• Developed for banks

• Advance version of blockchain technology