Bitcoin Interview Questions – Set 01

What can I buy with Bitcoins?

We can purchase anything with bitcoins that are legally sold in the world like clothing, electronics, food and art to handmade crafts. Bitcoin can also be used to buy large items like cars, real estate, and investment vehicles such as precious metals. If you buy anything from Amazon through bitcoin, you can get up to 20% discount. Some others also give a discount to people who pay with the digital currency. Bitcoin has its own stores where you can buy T-shirts, bag, hoodie, accessories, etc.

There are currently three standard address formats in use:

P2PKH: It always begins with the number 1, e.g., 1BvBMSEYvtWesqTFn5Au4n4GFg7xJaNVN2.

P2SH: It always begins with the number 3, e.g., 3J78t1WpEZ72CMnQviedrnyiWrnqRhWMLy.

Bech32: It always begins with bc1, e.g., bc1qat0srrr7xdkvy5l643lxcnw9re59gtzxwf5ndq.

What is a Bitcoin wallet?

A Bitcoin wallet(digital wallet) is a software program where Bitcoins are stored. Technically, a Bitcoin wallet is stored a private key(secret number) for every Bitcoin address. The owner of the wallet can send, receive, and exchange bitcoins. The Bitcoin wallet is of many forms, and some of them are a desktop wallet, mobile wallet, web wallet, and hardware wallet.

Who controls the Bitcoin network?

Bitcoin network is the term used to describe all the servers which are mining the various transactions undertaken with bitcoin. No one particularly can control the Bitcoin network. All Bitcoin users around the world control it. To be compatible with each other, all bitcoin users need to use software that is complying with the same rules. Bitcoin mining can only work correctly with a complete consensus among all users. Therefore, all users and developers have a strong incentive to protect this consensus.

How is Bitcoin purchased?

We can purchase the bitcoin from many sources. Some of them are given below.

  • It can be purchased from online with the help of credit cards or other e-wallets like PayPal etc.
  • It can also be purchased with the help of LocalBitcoins and from Bitcoin Teller Machines, which is equivalent to Cash vending ATMs.
  • Bitcoin.com provides a list of authenticated online exchanges centres where you can sell and purchase Bitcoins.

Is Bitcoin legal?

Bitcoin is legal in many countries in the world, but some countries state that they have banned its use, such as India, China, and Ecuador. The cryptocurrencies regulations can vary from country to country so you should have to do a proper search before the initiation of bitcoin transaction in any organization. Wikipedia and many other online services have a great guide on how Bitcoin is treated in all the countries around the world with its regulatory policies.

How can you choose a Bitcoin wallet?

Choosing the best bitcoin wallet is the most important step in becoming a Bitcoin user. There are two initial steps to finding a Bitcoin wallet given below:

  • Decide what sort of crypto wallet you need
  • Consider specific wallets to find the best one for you.
  • Bitcoin wallets differ in many ways, such as security, convenience, level of privacy, coin support, and anonymity, customer support, user interface, fees, built-in services, and other variables.

The most common distinction in choosing Bitcoin wallets is whether they are a cold wallet or hot wallet.

  • Cold: The cold wallets refer to offline storage of bitcoins. These type of wallets are less convenient for frequent use, but they are more secure.
  • Hot: The hot wallets are connected to the internet most of the time. These type of wallets are suitable for daily use, but they are not secure.
    Here, I will take an example of a page called bitcoin.org to choose a wallet. Bitcoin.org is a very good starting point to explain how to choose your wallet because there is a lot of options available. In this page, we will go to an option called Choose your wallet and decides the wallet type which you wants. These wallets are a desktop wallet, mobile wallet, web wallet, and hardware wallet.

What is the price of one Bitcoin? Can I buy a part of one Bitcoin?

The buying rate for one Bitcoin as of April 2019 is approximately 3,67,569.51 Indian Rupees. The price of bitcoin would be changed every second. If you do not want to buy one bitcoin whole, you can buy a fraction of a Bitcoin also. It is because each bitcoin can be divided up to 8 decimals(0.00000001). For instance, you can buy Bitcoin for Rs 1000 or Rs 5,000

How can you sell Bitcoins?

We can sell Bitcoins in many ways. We can sell it online to an exchange or some other people who live nearby. It can be sold in the same way as it can be purchased. The price of bitcoin fluctuates regularly as per the demand and supply. It can also be sold through bitcoin ATMs, which allow selling and buying of Bitcoins. The transaction fees of bitcoin are the lowest amongst all bank charges applied globally.

What is Bitcoin?

A bitcoin is a type of digital currency which can be bought, sold, and transfer between the two parties securely over the internet. It cannot be touched and seen, but it can be traded electronically. We can store it in our mobiles, computers or any other storage media as a virtual currency. Bitcoin can store values much like fine gold, silver, and some other type of investments. It can be used to buy products and services as well as make payments and exchange values electronically. It is the most popular cryptocurrency in the world.

How does Bitcoin work?

Each Bitcoin is a computer file which is stored as a digital wallet in smartphones or computer and functions similar to any e-wallet app. Bitcoins use his currency in a digitalized form which has its limits of production and limited to 21 million Bitcoins only. You can send Bitcoins to your digital wallet and then can send Bitcoins to other people. Every single bitcoin transaction is recorded in a public ledger called the blockchain. The blockchain makes it possible to trace the history of Bitcoins to stop people from spending bitcoins they do not own. It also restricts to make copies or undoing transactions.