Easy-level statistics interview questions covering fundamental concepts, descriptive statistics, and basic probability. Q1: Explain the difference between mean, median, and mode. Answer: Definitions Mean ($\bar{x} = \frac{1}{n}\sum_{i=1}^{n} x_i$): Arithmetic average of all values Median: Middle value when data is …
Read MoreEasy-level backend interview questions covering HTTP, REST APIs, databases, and server fundamentals. Q1: What is REST and what are its principles? Answer: REST Principles 1. Stateless: Each request contains all information needed 2. Client-Server: Separation of concerns 3. Cacheable: Responses can be cached 4. Uniform …
Read MoreEasy-level Cardano interview questions covering blockchain basics, Plutus, and development. Q1: What is Cardano and how does it work? Answer: Cardano is a proof-of-stake blockchain platform. Key Features: Ouroboros: Proof-of-Stake consensus Plutus: Smart contract language Formal Verification: Mathematically verified …
Read MoreEasy-level Cosmos chain operation interview questions covering chain operations, algorithms, keys, validators, and modules. Q1: What are the key components of a Cosmos chain? Answer: Chain Components: Key Components: Tendermint Core: Consensus and networking Byzantine Fault Tolerant (BFT) consensus P2P networking Block …
Read MoreEasy-level Cosmos SDK interview questions covering chain code, SDK basics, and Ignite CLI. Q1: What is Cosmos SDK and how does it work? Answer: Cosmos SDK is a framework for building blockchain applications in Go. It provides modular components that developers can combine to create custom blockchains. Key Components: …
Read MoreEasy-level frontend interview questions covering HTML, CSS, JavaScript, React, and Vue fundamentals. Q1: What is the DOM and how does it work? Answer: DOM (Document Object Model): Tree-like representation of HTML document that JavaScript can manipulate. DOM Manipulation 1// Select elements 2const element = …
Read MoreEasy-level Polkadot interview questions covering blockchain basics, Substrate, and parachains. Q1: What is Polkadot and how does it work? Answer: Polkadot is a heterogeneous multi-chain protocol. Key Components: Relay Chain: Main chain providing security Parachains: Independent chains with dedicated slots Parathreads: …
Read MoreEasy-level Protocol Buffers interview questions covering basics, syntax, and fundamental concepts. Q1: What are Protocol Buffers and why use them? Answer: Protocol Buffers (protobuf) is a language-neutral, platform-neutral extensible mechanism for serializing structured data. Key Benefits: Efficiency: Smaller size than …
Read MoreEasy-level Solana interview questions covering blockchain basics, programs, and development. Q1: What is Solana and how does it work? Answer: Solana is a high-performance blockchain designed for scalability. Key Features: High Throughput: 65,000+ TPS Low Latency: ~400ms block time Low Cost: ~$0.00025 per transaction …
Read MoreEasy-level Web3 interview questions covering blockchain fundamentals, Ethereum, smart contracts, and decentralized applications. Q1: What is blockchain and how does it work? Answer: Block Structure Key Components: Block: Container of transactions Hash: Unique identifier (SHA-256) Previous Hash: Links to previous block …
Read MoreEasy-level AI/ML interview questions with LangChain examples and Mermaid diagrams. Q1: What is the difference between supervised and unsupervised learning? Answer: Supervised: Has labels (input → output mapping) Unsupervised: No labels (discover structure) LangChain Example: 1from langchain.prompts import …
Read MoreArchitecture Interview Questions - Easy
Easy-level software architecture interview questions covering fundamental patterns, principles, and concepts. Q1: Explain the difference between monolithic and microservices architecture. Answer: Monolithic Architecture Definition: Single unified application where all components are tightly coupled and deployed …
Read MoreEasy-level algorithm interview questions with detailed approach explanations and solutions. How to Approach Interview Problems Clarify requirements: Ask about edge cases, constraints, input/output format Think out loud: Explain your thought process Start with brute force: Then optimize Consider trade-offs: Time vs. …
Read More