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EC-COUNCIL 312-82 Exam Syllabus Topics:
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EC-COUNCIL EC-Council Blockchain Fintech CertificationB|FC exam Sample Questions (Q19-Q24):
NEW QUESTION # 19
These wallets use a this passphrase to derive the private key
Answer: C
Explanation:
Brain Walletsderive private keys from a passphrase. This approach allows users to create a wallet by memorizing a unique phrase, which is then hashed to generate the corresponding private key.
Key Details:
* Use of Passphrases: Brain wallets use a passphrase that is entered by the user, typically a string of words that can be remembered easily. This passphrase is then converted into a private key using a cryptographic hash function.
* Security Concerns: While convenient, brain wallets are susceptible to brute-force attacks if the passphrase is not sufficiently complex. Simple or common phrases may be vulnerable to attackers who use lists of common phrases to derive potential private keys.
* Distinction from Deterministic Wallets: Unlike Hierarchical Deterministic Wallets, which use a seed phrase to generate a tree of keys, brain wallets derive a single private key directly from a passphrase.
In conclusion,B. Brain Walletsis the correct answer, as these wallets use a passphrase to generate the private key.
NEW QUESTION # 20
Which of the following are benefits of blockchain for financial services according to IBM ''Blockchain for Financial Services''?
Answer: A,D
Explanation:
According to IBM's "Blockchain for Financial Services", blockchain offers several benefits, including faster settlement and automated compliance. These features are critical in enhancing the efficiency and reliability of financial services.
Key Details:
Faster Settlement: Blockchain technology enables near-instantaneous settlement of transactions by eliminating the need for traditional intermediaries and reducing processing times, which can speed up transactions significantly compared to legacy systems.
Automated Compliance: Blockchain's transparency and immutability allow for the automatic recording and verification of regulatory requirements. Smart contracts can be used to enforce compliance rules in real-time, ensuring that transactions adhere to regulatory standards without manual intervention.
Impact on Financial Services: These benefits translate to reduced operational costs, improved transaction accuracy, and increased trust between parties, making blockchain an attractive solution for financial institutions.
Thus, A. Faster settlement and B. Automated compliance are the correct answers, as these are specific benefits of blockchain in financial services according to IBM.
NEW QUESTION # 21
What is the primary way blockchain could help in the food industry?
Answer: C
Explanation:
Blockchain can greatly benefit the food industry bymaking transactions more transparent. By recording each transaction in an immutable ledger, blockchain enables traceability, which is crucial for food safety, quality control, and ensuring that products meet regulatory standards.
Key Details:
* Traceability: Blockchain allows for the tracking of food products from farm to table. Each step in the supply chain can be recorded on the blockchain, providing consumers and regulators with transparent information about the origin and journey of food products.
* Improving Trust and Safety: With transparent transactions, stakeholders can quickly identify and address issues such as contamination, fraud, or mislabeling, which enhances food safety and consumer trust.
* Enhanced Efficiency: By reducing paperwork and enabling digital record-keeping, blockchain streamlines the process of verifying and sharing information about food products across various parties.
Thus,C. Making transactions more transparentis the correct answer, as it highlights blockchain's role in providing transparency in the food industry.
NEW QUESTION # 22
What is a DEX
Answer: C
Explanation:
ADecentralized 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 isC. A decentralized exchange that allows users to exchange cryptocurrency directly.
NEW QUESTION # 23
How many bitcoin are available?
Answer: A
Explanation:
Bitcoin has a fixed supply limit of21 millioncoins, as defined by its protocol. This cap is coded into Bitcoin's original protocol and cannot be altered without a consensus change, ensuring its scarcity and value proposition as a "digital gold." Key Details:
* Fixed Supply: Bitcoin's supply limit is integral to its design, as it imposes a hard cap on the total number of coins that can ever be mined. This limited supply is one of the factors that gives Bitcoin its deflationary nature and potential as a store of value.
* Mining Schedule: New Bitcoins are released into circulation through mining rewards, which halve approximately every four years (in an event known as the "halving"). This gradually reduces the issuance rate until the maximum supply is reached around the year 2140.
* Difference from Other Cryptocurrencies: Unlike some cryptocurrencies that have flexible or inflationary supply models, Bitcoin's finite supply is a distinguishing feature that appeals to those concerned with long-term value preservation.
Therefore,D. 21 millionis the correct answer, as it accurately reflects the total number of Bitcoin that will ever exist.
NEW QUESTION # 24
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