1. The Bitcoin was introduced in this world by?
(A) Stuart Haber
(B) W. Scott Stornetta
(C) Satoshi Nakamoto
(D) Dave Bayer
Answer : C
2. Bitcoin is a cryptocurrency invented in?
(A) 2007
(B) 2008
(C) 2009
(D) 2010
Answer : C
3. Bitcoins are created as a reward for a process known as?
(A) Mining
(B) Wallet
(C) Bubble
(D) Ledger
Answer : A
4. Transactions are verified by network nodes through cryptography and recorded in a public distributed ledger is called a?
(A) Cryptocurrency wallet
(B) Blockchain
(C) Nodes
(D) Cryptocurrency
Answer : B
5. Which hash function used in Ledger?
(A) SHA-64
(B) SHA-128
(C) SHA-256
(D) SHA-512
Answer : C
6. What is the block time of the ledger?
(A) 5 mins
(B) 8 mins
(C) 2 mins
(D) 10 mins
Answer : D
7. Nakamoto implemented the bitcoin software as open-source code.
(A) TRUE
(B) FALSE
(C) Can be true or false
(D) Cannot say
Answer : A
8. To claim the reward, a special transaction called a?
(A) Nonce
(B) Online wallets
(C) Hardware wallet
(D) Coinbase
Answer : D
9. Which of the following statement is true about bitcoin?
(A) There is no central server; the bitcoin network is peer-to-peer
(B) There is no central storage; the bitcoin ledger is distributed
(C) The ledger is public; anybody can store it on their computer
(D) All of the above
Answer : D
10. Bitcoin have a central authority?
(A) TRUE
(B) FALSE
(C) Can be true or false
(D) Can't say
Answer : B