Comprehensive Quiz

Why would someone use escrows?

A) To hold payment funds until the recipient has confirmed receipt of the goods or services being purchased

B) To require that multiple people approve payment before it is processed

C) To make a lot of small payments quickly and efficiently

D) To give someone else the ability to claim funds from your account at any time in the future

Why doesn't the XRPL use Proof of Work (PoW)?

A) PoW is too energy-intensive

B) PoW is unbalanced

C) PoW isn't secure enough

What is a DEX?

A) A decentralized exchange that allows users to trade assets without having to send them to a centralized exchange

B) A cryptocurrency that is used as an intermediary asset to find the lowest transaction cost

C) An order book that lists all current bids and asks for each asset

Where do AMMs store currency?

In a hedge fund.

In a decentralized exchange.

In a community moderated account.

In a liquidity pool.

The URI of an NFToken is meant to store what information?

The website address of the creator of the token.

Any metadata associated with the token.

The address of the marketplace listing the token.

The IP address of the computer where the NFT was minted.

What is the NFTokenTaxon ID used for?

To create a unique ID for each NFT, so it can be found on the blockchain.

To link or associate all NFTs that belong in a single collection.

To set a transaction price in case an NFT is sold after being minted.

All of the above.

Why is a trust line necessary for transactions with tokens and currency?

By establishing trust lines with different assets, users can participate in trustless trading and make atomic swaps between assets directly on the XRPL without relying on a centralized intermediary.

Without trust lines, accounts could be subject to receiving assets or tokens that they do not want to receive.

We use trust line as a means of consenting to receive currency or a token.

All of the above

What's the first step to creating your own issued token on the XRPL?

A) Creating a trust line

B) Sending a transaction

C) Configuring the settings for your hot address

D) Creating accounts and acquiring XRP

Which hook in the nice-xrpl library is used to broker a buy and sell offer from a third-party?

acceptBrokeredOffer()

useAcceptBrokeredOffer()

setBuyOfferIndex(e.currentTarget.value)

setSellOfferIndex(e.currentTarget.value)

What is the purpose of hooks?

A) To provide smart contract functionality

B) To reduce fees

C) To increase the speed of transactions

D) To improve security

Where is the best place to store your private keys?

Written on a note.

Emailing them to yourself.

Remembering them.

In a hardware or software wallet.

What is proof-of-work?

A) A type of consensus mechanism in which miners compete to solve complex mathematical problems

B) A type of consensus mechanism in which nodes stake the network currency to validate transactions

C) A method of reaching consensus via a peer-to-peer network of nodes

D) None of the above

How do AMMs work?

AMMs work by holding currency in order books, then the ledger randomizes a fair exchange rate between the different currencies.

AMMs work by pooling currency in liquidity pools, then algorithmically picking a fair exchange rate between the different currencies.

AMMs work by pooling currency in liquidity pools, then the AMM leadership group picks a fair exchange rate between the different currencies.

AMMs work by pooling currency in liquidity pools, then the AMM community votes on a fair exchange rate between the different currencies.

What is one benefit of transaction transparency in DeFi systems?

It increases the potential for fraudulent activities.

It allows for hidden fees in transactions.

It makes transactions resistant to censorship and reduces fraud potential.

It limits access to transaction information.

What is the difference between the testnet and livenet/mainnet servers?

When coding on the XRPL, you can test your code with the testnet before launching an app on the livenet.

The testnet uses fake XRP and fake currency. The livenet uses real XRP and currency.

New accounts on the testnet are funded via a centralized faucet, whereas the livenet requires a transfer from an exchange.

All of the above

What is the primary goal when making a request on the XRPL?

To look up something on the ledger.

To retrieve currency from another account.

To prepare your wallet for an incoming transaction.

To send currency.

To change the currency of a transaction in the example code sandbox, which file should be edited?

App.jsx

send-currency.jsx

wallet-info.jsx

source-wallet.jsx

How does blockchain help game creators?

A) It makes it easier to raise funds

B) It helps them build a strong community

C) It provides a more level playing field

D) All of the above

What does "TVL" mean?

A) Total value locked

C) Tokenized value loan

C) Trade volume level

How are cryptocurrency transactions secured?

A) Cryptography

B) A central authority verifies them

C) Strong passwords