Comprehensive statistics interview questions covering probability, distributions, hypothesis testing, and statistical analysis.

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 …

Hard-level statistics interview questions covering advanced inference, multiple comparisons, non-parametric methods, and complex experimental design. Q1: Explain the multiple comparisons problem and how to address it. Answer: The Problem When testing multiple hypotheses simultaneously, probability of at least one Type …

Medium-level statistics interview questions covering hypothesis testing, regression analysis, and statistical inference. Q1: Explain hypothesis testing: null hypothesis, alternative hypothesis, p-value, and significance level. Answer: Key Concepts Null Hypothesis (H₀): Statement being tested (usually "no …

Comprehensive AI/ML and LLM interview questions covering fundamental concepts, algorithms, and practical applications. AI/ML Fundamentals Interview questions covering core machine learning concepts, algorithms, and best practices: Easy: Supervised/unsupervised learning, overfitting, bias-variance tradeoff, basic …

Comprehensive architecture, system design, and scalability interview questions covering distributed systems, design patterns, and large-scale system architecture. Architecture Design Interview questions covering software architecture patterns and design principles: Easy: Monolithic vs. Microservices, REST vs. GraphQL, …

Comprehensive backend interview questions covering APIs, databases, microservices, distributed systems, and performance optimization. Overview Backend development encompasses: API Design: REST, GraphQL, gRPC Databases: SQL, NoSQL, transactions, optimization Microservices: Architecture, communication, scaling …

Easy-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 …

Hard-level backend interview questions covering distributed systems, advanced architecture, and complex system design. Q1: Design a distributed caching system (like Redis Cluster). Answer: Consistent Hashing Implementation 1package main 2 3import ( 4 "fmt" 5 "hash/fnv" 6 "sort" 7 "sync" …

Medium-level backend interview questions covering microservices, advanced databases, message queues, and performance optimization. Q1: Explain microservices architecture and its trade-offs. Answer: Monolith vs Microservices Advantages Independent deployment: Deploy services separately Technology flexibility: Different …

Bitcoin consensus algorithm interview questions covering Proof-of-Work (PoW) and Nakamoto consensus. Q1: How does Bitcoin (Nakamoto) consensus work? Answer: Bitcoin uses Proof-of-Work (PoW) consensus, also known as Nakamoto consensus. Sequence Diagram: Overall Flow Diagram: Individual Node Decision Diagram: Bitcoin …

Byzantine Fault Tolerance (BFT) consensus algorithm interview questions covering distributed systems that handle arbitrary failures. Q1: How does Byzantine Fault Tolerance (BFT) work? Answer: Byzantine Fault Tolerance handles arbitrary failures, including malicious behavior. Sequence Diagram: Overall Flow Diagram: …

Easy-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 …