Grab a pen and paper to write down the number of the question and your answer. Change the size of the window so that only the questions (and not the answers) are visible.

1) Bitcoin blocks are generated on average every __ minutes.
2) The bitcoin protocol halves the issuance of new bitcoins every __ years.
3) A maximum of __ bitcoins will ever exist.
4) Bitcoins monetary policy is __ .
5) The public bitcoin transaction ledger is called the __ .
6) Bitcoin solves the __ problem with digital currencies.
7) Bitcoin was invented in __ by __ .
8) The first bitcoins were issued in __ .
9) The bitcoin network is secured by miners performing __ .
10) Bitcoin solves the __ problem in distributed computing.
11) Offline bitcoin storage is also referred to as __ storage.
12) A client that handles all aspects of the bitcoin protocol is called a __ node.
13) Clients which do not independently validate the entire blockchain are called "SPV" clients which stands for __ .
14) Bitcoin addresses are often expressed as __ codes to be scanned by a camera.
15) Bitcoin addresses start with the digit __ or __ .
16) True or false: You can generate a bitcoin address offline.
17) True or false: Bitcoin payments are reversible by the sender.
18) Transactions which are not yet recorded in the bitcoin ledger are called __ transactions.
19) The smallest unit of bitcoin (0.00000001 BTC) is also known as a __ .
20) True or false: The input value of a transaction must equal the output value of a transaction.
21) Ownership of bitcoins is proved through a __ .
22) True or false: You can spend a fraction of a transaction input.
23) True or false: A transaction input is a reference to a previous transaction's output.
24) Bitcoin miners validate __ in exchange for new bitcoins and transaction fees.
25) True or false: Bitcoin blocks are difficult to create, but they are easy to validate.
26) Bitcoin uses __ algorithm for proof-of-work.
27) Today, bitcoin miners mine with "ASIC" hardware which stands for __ .
28) Miners who share their efforts and the rewards participate in a mining __ .
29) The first bitcoin block is called the __ block.
E.C.1) The creator of bitcoin handed off the responsibility of maintaining the reference implementation to __ .
E.C.2) Before ASICs and after GPUs, miners used __ hardware.
Answer Key (DO NOT READ UNTIL FINISHED!)
1) 10
2) 4
3) 21 million
4) Deflationary
5) Blockchain
6) Double-spend
7) 2008 by Satoshi Nakamoto
8) 2009
9) Proof-of-work
10) Byzantine Generals' Problem
11) Cold
12) Full
13) Simple payment verification
14) QR
15) 1 or 3
16) True
17) False
18) Unconfirmed
19) Satoshi
20) False
21) Digital signature
22) False
23) True
24) Transactions
25) True
26) SHA256
27) Application-specific integrated circuit
28) Pool
29) Genesis
E.C.1) Gavin Andresen
E.C.2) FPGA (field-programmable gate array)