Could you provide examples of layer 2 solutions or alternative infrastructure which improve bitcoin stability ?
Hwo much does it cost to create a new digital currency ? (Select all that apply)
Why is leveraging a trade or an investment dangerous ?
Bitcoin is a protocol ?
Cesar wants to buy some bitcoins. He is searching for an easy, secured and fast solution. He is planning to buy 250 € all at once. He doesn't mind the government knowing everything and he is OK with doing KYC. What type of exchange is the most suitable for him?

What is a good way to back up your data? (Select all that apply)

How can you mitigate a 5$ wrench attack ? (Select all that apply)
What happens to a transaction fee ?
Who create the next block ? (Select all that apply)

What element should be avoided as a beginner’s investor? (Select all that apply)

Camille decided to set up her first Bitcoin wallet. Since she always forgets her password, she decided to take a picture of her private key and hide it within an old photo folder from 2007 on her PC. She thinks no one could possibly find it there since it's so random. Is she right ?
During the German hyperinflation of 1923, it was cheaper to burn money than wood.
What does "ICO" stand for ?
Where should your Bitcoin be stored

Should you use the same password twice ? (Select all that apply)

What is the block reward for miner in 2021 (Select all that apply)
How many wallets can 1 hardware device create ?
Your friend is setting up its first Bitcoin wallet. When it's created, he is asked to enter his name & email address. Since you know about Bitcoin, he asks you if that's normal. What is your answer?
How can you deny the "hacker" attack factor ?
Which Bitcoin is the real Bitcoin ?
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