1. What type of architecture will describe blockchain
A. Single centralized authority
B. Distributed peer to peer only
C. Distributed with centralized
D. None of the above

2. What does a block in blockchain consists of
A. a hash pointer which acts as a link to the block which is prior to it
B. transaction data
C. a timestamp
D. All of these

3. What was the initial application, for which Blockchain was designed
A. Research project
B. Peer-to-peer finance application
C. Open source finance software to connect banks
D. None of the above

4. Who is regarded as creator of Blockchain technology
A. Tim Berners-Lee
B. Leonard Kleinrock
C. Satoshi Nakamoto
D. Charles Babbage

5. Which statement is true about anonymity and Bitcoin?
A. The Bitcoin ledger contains user information
B. It's difficult to find addresses
C. It's impossible to determine a user's identity
D. The Bitcoin ledger isn't public


Answers:      1 (B), 2 (D), 3 (D), 4 (C), 5 (A)

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