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  2. Multiple choice - Wikipedia

    en.wikipedia.org/wiki/Multiple_choice

    A multiple choice question, with days of the week as potential answers. Multiple choice (MC), [1] objective response or MCQ(for multiple choice question) is a form of an objective assessment in which respondents are asked to select only the correct answer from the choices offered as a list.

  3. Bitcoin protocol - Wikipedia

    en.wikipedia.org/wiki/Bitcoin_protocol

    A diagram of a bitcoin transfer. The bitcoin protocol is the set of rules that govern the functioning of bitcoin.Its key components and principles are: a peer-to-peer decentralized network with no central oversight; the blockchain technology, a public ledger that records all bitcoin transactions; mining and proof of work, the process to create new bitcoins and verify transactions; and ...

  4. Cryptocurrency - Wikipedia

    en.wikipedia.org/wiki/Cryptocurrency

    A blockchain is "an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way". [63] For use as a distributed ledger, a blockchain is typically managed by a peer-to-peer network collectively adhering to a protocol for validating new blocks. Once recorded, the data in any given ...

  5. Decentralized application - Wikipedia

    en.wikipedia.org/wiki/Decentralized_application

    [10] The performance of a DApp is tied to its latency, throughput, and sequential performance. [11] Bitcoin's system for transaction validation is designed so that the average time for a block on bitcoin's blockchain to be mined is 10 minutes. [11] Ethereum offers a reduced latency of one mined block every 12 seconds on average (called Block Time).

  6. Online quiz - Wikipedia

    en.wikipedia.org/wiki/Online_Quiz

    Online quizzes are generally free to play and for entertainment purposes only though some online quiz websites offer prizes. Websites feature online quizzes on many subjects. One popular type of online quiz is a personality quiz or relationship quiz which is similar to what can be found in many women's or teen magazines.

  7. Privacy and blockchain - Wikipedia

    en.wikipedia.org/wiki/Privacy_and_blockchain

    Blockchain systems use asymmetric cryptography to secure transactions between users. [7] In these systems, each user has a public and private key. [7] These keys are random strings of numbers and are cryptographically related. [7] It is mathematically impossible for a user to guess another user's private key from their public key. [7]

  8. Distributed ledger - Wikipedia

    en.wikipedia.org/wiki/Distributed_ledger

    A distributed ledger (also called a shared ledger or distributed ledger technology or DLT) is a system whereby replicated, shared, and synchronized digital data is geographically spread (distributed) across many sites, countries, or institutions. [1]

  9. List of blockchains - Wikipedia

    en.wikipedia.org/wiki/List_of_blockchains

    First and most well-known blockchain of all; BTC is the most valuable token in terms of market share. [1] [2] Litecoin: Oct 8, 2011 Charlie Lee LTC PoW: Yes (scripts) Yes [1] [3] Peercoin: Aug 19, 2012 PPC PoW: Yes (scripts) No [1] [4] Primecoin: Jul 7, 2013 Sunny King XPM PoW: Work is finding long Cunningham chains of prime numbers: MazaCoin ...