Search test library by skills or roles
⌘ K

Adaface Sample Blockchain Questions

Here are some sample Blockchain questions from our premium questions library (10273 non-googleable questions).

Skills

Others

Embedded Systems Agile/Scrum Cyber Security SAP ABAP SAP HANA SAP Fiori SAP GRC SAP QM SAP SuccessFactors Salesforce Developer Salesforce Administrator Boomi Dynamics 365 SCM Dynamics 365 Finance Dynamics 365 Customer Service Dynamics 365 Sales Dynamics 365 Customer Voice Dynamics 365 Commerce Dynamics AX Spark Adobe InDesign Oracle Hyperion Planning Customer Support ITIL Blue Prism SAS SCCM SSAS SSIS SSRS Citrix Google AdWords Weblogic Talend UML Human Resource Management Talent Acquisition Power Apps RPA CISCO CISCO DCIM French Apache NiFi Apache Pig TIBCO Spotfire TIBCO Business Studio TIBCO Administration TIBCO ActiveMatrix BPM TIBCO Hawk TIBCO Apache Tomcat Oracle Hyperion Financial Management Oracle Fusion Oracle AIA Oracle APEX Oracle BPM Oracle Apps Oracle Financial Apps Oracle OAF Oracle SOA SAP Hybris SAP BusinessObjects SAP BI SAP PowerDesigner SAP PowerBuilder SAP Leonardo SAP MDM SAP MDG SAP BW SAP SRM SAP UI5 SAP MM SAP HCM SAP BTP (SCP) SAP PI SAP PP SAP Basis SAP SD SAP WM SAP PS SAP BODS SAP DBM SAP Litmos SAP FI Loadrunner WPF WebFOCUS Ranorex Informatica Data Quality GDPR RabbitMQ Gradle Grunt EJB SnapLogic SharePoint Progress (OpenEdge) Informatica B2B Data Exchange Informatica MDM Joomla Ionic Liferay Sqoop Computer Literacy Communication Skills Technical Support Ecommerce Analytics Software Support Growth Marketing Marketing Analysis Digital Marketing Product Marketing SEO Outreach Market Research Jira German Italian Spanish Grammar & Vocabulary Listening Comprehension Reading Comprehension Sentence Structure
🧐 Question

Medium

51% Attacks
Solve
A 51% attack is perhaps the most discussed threat to any public Blockchain asset. A 51% attack happens when a certain miner or mining pool, that owns more than 50% of all the network’s hashing power, acts maliciously to disturb the network’s operation.
For example: Two Bitcoin Cash mining pools, carried out a 51% attack on the Bitcoin Cash blockchain in order to stop an unknown miner from taking coins that they weren’t supposed to have access to, while the network forked.
Which of the following CAN be done by a miner employing a 51% attack?
            
            A: Double spend their coins
            B: Reverse confirmed transactions
            C: Steal funds from a certain address
            D: Prevent transactions from being confirmed
            E: Create false transactions that never happened

Easy

Evidence
Solve
Breed Chasing, solo engineer is planning to create new cryptocurrency, NEWCRAIGLIST and build a blockchain that facilitates buying and selling second-hand items with NEWCRAIGLIST from each other. Breed expects the platform to be used for international transactions and devised the following process:
            
            - Before a transaction is considered complete, the purchaser must put the funds in an escrow service
            - The sender must enter the courier tracking number into that same escrow
Palmart, toy store giant in US is asked by lawmakers to provide evidence that proves the store’s toys are not produced through child labour. Palmart’s toys are transferred between 7 parties between creation and placement at the store. Palmart is considering using blockchain to solve this problem. Discretion in the reading and writing of transactions is highly important to the store chain to protect its proprietary interests. Review the following possible solutions and pick the best approach that solves Palmart’s problem:
Option A:
            Use a public blockchain that supports assets.
            Then create a new toy asset for each item created. 
            When the toy is transferred to the next party, mandate that the associated blockchain asset to be transferred to the next party's blockchain account with required metadata.
            Lawmakers can now view transactions and transfers at any time.
            
            Option B: 
            Use a permissioned blockchain.
            Require that every party involved in the process to host a node on the Palmart's network. 
            Create a new toy asset for each item created. 
            When the toy is transferred to the next party in the process, have the previous party use a web portal to initialize a chain code Smart Contract to transfer control of the asset. 
            When the next party receives the asset have them use a web portal to initialize a chain code Smart Contracts to acknowledge receipt of the asset. 
            Provide read-only permissions to the lawmakers so they can receive the evidence they are looking for.

Medium

Blockchain Interoperability
Smart Contract Logic
Interoperability
Decentralized Applications
Solve
Consider a blockchain ecosystem where a decentralized application (dApp) is designed to operate across two different blockchains: Blockchain A, which uses a unique smart contract language and execution environment, and Blockchain B, which supports Ethereum Virtual Machine (EVM) compatible smart contracts. The dApp includes a cross-chain functionality where certain actions triggered in Blockchain A's smart contract result in specific operations in a smart contract on Blockchain B. The interoperability is facilitated through a decentralized oracle that verifies and relays information between the two blockchains. Given this setup, which of the following statements most accurately reflects the challenges and considerations in implementing this dApp's cross-chain functionality?
A: Cross-chain functionality cannot be achieved due to the different smart contract languages and execution environments.
            B: The decentralized oracle introduces a single point of failure, compromising the security of the dApp.
            C: Synchronizing state between the two blockchains is seamless and does not introduce any additional latency.
            D: The dApp can maintain consistency and atomicity in transactions across the blockchains, but it faces challenges in data validation and oracle reliability.
            E: Smart contract execution on Blockchain B is entirely dependent on the state of the smart contract on Blockchain A.
            F: The interoperability poses no significant challenges, as EVM compatibility ensures seamless cross-chain communication.

Medium

Strategic Tokenomics
Tokenomics
Cryptocurrency Economics
Solve
A new cryptocurrency, CryptoX, has a fixed total supply of 100 million tokens. Its initial release of 40 million tokens is distributed as follows: 10 million for development, 15 million for a decentralized autonomous organization (DAO) treasury, and 15 million for staking rewards. The remaining 60 million tokens are locked, with a scheduled release decreasing by 10% each year. CryptoX also has a deflationary mechanism where 0.1% of each transaction is burned.
            
            During a market downturn, CryptoX's price drops by 30% in a month. Market analysis attributes this drop primarily to increased token selling by short-term holders, influenced by a broader market downturn in cryptocurrencies. CryptoX's community is considering responses to stabilize the price and reassure long-term investors. Two strategies are proposed:
            
            1) Increase the transaction burn rate to 0.2%, hoping to reduce the circulating supply faster and create a deflationary pressure.
            2) Maintain the current tokenomics, believing that the downturn is part of normal market fluctuations and that the existing mechanisms are robust enough for long-term stability.
            
            Given the market analysis and the nature of the downturn, which strategy is more likely to effectively stabilize CryptoX’s price while maintaining long-term value?
A: Increase the transaction burn rate to 0.2%.
            B: Maintain the current tokenomics without any changes.
            C: Temporarily suspend the transaction burn mechanism.
            D: Increase the release rate of the locked tokens.
            E: Implement a dynamic burn rate that adjusts with market conditions.
            F: Introduce a temporary buyback and burn program.
🧐 Question🔧 Skill

Medium

51% Attacks

3 mins

Blockchain
Solve

Easy

Evidence

3 mins

Blockchain
Solve

Medium

Blockchain Interoperability
Smart Contract Logic
Interoperability
Decentralized Applications

3 mins

Blockchain
Solve

Medium

Strategic Tokenomics
Tokenomics
Cryptocurrency Economics

2 mins

Blockchain
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
51% Attacks
Blockchain
Medium3 mins
Solve
Evidence
Blockchain
Easy3 mins
Solve
Blockchain Interoperability
Smart Contract Logic
Interoperability
Decentralized Applications
Blockchain
Medium3 mins
Solve
Strategic Tokenomics
Tokenomics
Cryptocurrency Economics
Blockchain
Medium2 mins
Solve

Trusted by recruitment teams in enterprises globally

Amazon Morgan Stanley Vodafone United Nations HCL PayPal Bosch WeWork Optimum Solutions Deloitte Microsoft NCS Doubtnut Sokrati J&T Express Capegemini

We evaluated several of their competitors and found Adaface to be the most compelling. Great library of questions that are designed to test for fit rather than memorization of algorithms.


Swayam Narain, CTO, Affable

hashtag image heart icon Swayam
customers across world
Join 1200+ companies in 75+ countries.
Pruebe la herramienta de evaluación de habilidades más amigables para los candidatos hoy en día.
g2 badges
Ready to streamline your recruitment efforts with Adaface?
Ready to streamline your recruitment efforts with Adaface?
habla con nosotros
logo
40 min tests.
No trick questions.
Accurate shortlisting.
ada
Ada
● Online
Previous
Score: NA
Next
✖️