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Free 312-82 Exam Braindumps (page: 4)

Page 3 of 14
PDF with 50 Questions

______is a computer program that runs stop a blockchain and embedded within it are governance and business logic rules

  1. Dapps
  2. DaS
  3. DAO
  4. DAC

Answer(s): A

Explanation:

Decentralized Applications (Dapps) are applications that run on a blockchain network and include embedded governance and business logic rules. Unlike traditional applications, Dapps are decentralized, meaning they operate on a peer-to-peer network rather than a centralized server, leveraging smart contracts to automatically enforce rules and protocols without intermediaries.
Key Details:

Characteristics of Dapps: Dapps are open-source, operate autonomously, and store data on a blockchain. They utilize smart contracts to handle various functions, from transaction processing to enforcing governance rules and executing business logic. Smart Contracts: The embedded rules within Dapps are typically coded as smart contracts, which are self-executing contracts with the terms of the agreement directly written into lines of code. This ensures that all transactions and operations within the Dapp are transparent, immutable, and automatically enforced.
Use Cases: Dapps are commonly found in areas such as decentralized finance (DeFi), gaming, supply chain management, and social media, offering users more control and transparency compared to traditional applications.
In conclusion, Dapps (A) is the correct answer as it refers to computer programs running on a blockchain with embedded governance and business logic rules.



What is a DEX

  1. A distributed exchange that covers multiple nationalities
  2. A cryptocurrency exchange such as coinbase
  3. A decentralized exchanged that allows users to exchange cryptocurrency directly
  4. A Decentralized finance app or DApp

Answer(s): C

Explanation:

A Decentralized Exchange (DEX) is a platform that allows users to trade cryptocurrencies directly with one another without the need for a central intermediary or custodian. On a DEX, trades are facilitated using smart contracts on a blockchain, which automate transactions and ensure transparency. This decentralized model allows for peer-to-peer trading, often providing users with greater privacy and control over their funds compared to centralized exchanges.
Key Details:
Functionality of DEXs: DEXs enable users to connect their wallets and trade assets directly from their accounts. There is no central authority controlling the funds, reducing the risk of hacks and giving users full control over their private keys.
Examples of DEXs: Popular DEXs include Uniswap, SushiSwap, and PancakeSwap, which are commonly built on blockchain networks like Ethereum and Binance Smart Chain. These platforms operate through automated market makers (AMMs) or order book systems, which facilitate trading without centralized management.
Comparison with Centralized Exchanges (CEXs): Unlike centralized exchanges, which act as intermediaries and hold user funds, DEXs do not hold custody of funds. This reduces the risk of theft and enables users to trade directly from their wallets. Therefore, the correct answer is C. A decentralized exchange that allows users to exchange cryptocurrency directly.



Self-executing computer programs which facilitate transaction automation and eliminates the need for intermediaries are called what?

  1. Cryptocurrencies
  2. Bitcoin mining
  3. Distributed ledgers
  4. Smart contracts

Answer(s): D

Explanation:

Smart Contracts are self-executing computer programs that automatically enforce, verify, and facilitate the terms of a contract when certain conditions are met. These programs run on blockchain networks and eliminate the need for intermediaries by automating transactions based on predefined rules coded into the contract.
Key Details:
Automation and Trust: Smart contracts are crucial in blockchain technology because they enable trustless transactions, meaning parties can transact directly without relying on intermediaries. The code controls the execution, and transactions are transparent and irreversible. Use Cases: Smart contracts are foundational to decentralized finance (DeFi) applications, supply chain management, digital identity, and more. They facilitate various operations such as lending, borrowing, insurance, and automated asset transfers.
Example in Ethereum: Ethereum popularized smart contracts by providing a platform with Turing- complete scripting capabilities. This allowed developers to create sophisticated decentralized applications that execute on the blockchain.
In conclusion, D. Smart contracts is the correct answer as it refers to the technology that automates transactions and eliminates the need for intermediaries.



Which of the following is a language for working with Ethereum?

  1. Mist
  2. Rikeby
  3. Solidity
  4. Kovan

Answer(s): C

Explanation:

Solidity is the primary programming language used for developing smart contracts on the Ethereum blockchain. It is a statically typed, high-level language similar to JavaScript and C++, and it is specifically designed for creating contracts that run on the Ethereum Virtual Machine (EVM).
Key Details:
Purpose of Solidity: Solidity was created by the Ethereum team to enable the development of smart contracts that automate the execution of blockchain-based applications. Its syntax is designed to be familiar to developers experienced in other programming languages, which helps in onboarding and learning.

Compatibility and Flexibility: As a Turing-complete language, Solidity allows for the development of complex smart contracts and decentralized applications (DApps) with conditional logic, loops, and more. It is widely used in the DeFi space and beyond.
Ethereum Test Networks: Other options listed, such as Rinkeby and Kovan, refer to Ethereum test networks where developers test smart contracts, but they are not languages themselves. Mist is an Ethereum wallet interface, not a programming language. Thus, C. Solidity is the correct answer, as it is the language specifically designed for working with Ethereum smart contracts.






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