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DepartmentsMechanical Engineering Civil Engineering Electrical / EEE Engineering Electronics & Comm. Engineering Chemical EngineeringExamsGovernment jobs · GATE, ESE, SSC JE, PSU

Virtualization (1367 questions)

vSphere 8 (132)Migration & HA (114)Hyper-V 2025 (111)Storage (108)Proxmox VE (108)KVM & libvirt (99)Networking (87)vSAN & HCI (87)KubeVirt & K8s Virt (84)CPU & Memory (69)Hypervisor Concepts (66)Cloud Virtualization (60)Citrix/XCP-ng (54)Nutanix AHV (53)Licensing & Trends (51)Containers vs VMs (48)Memory (12)Hyper-V (12)KVM (12)

Big Data (1314 questions)

Security (1098 questions)

Networking (1047 questions)

Data Engineering (1278 questions)

System Administration (1131 questions)

Cloud (1095 questions)

DevOps & SRE (1137 questions)

Computer Science Fundamentals (1209 questions)

Engineering Mathematics (307 questions)

Linear Algebra (42)Numerical Methods (40)Calculus (38)Differential Equations (38)Probability & Statistics (38)Vector Calculus (37)Complex Variables (37)Transform Theory (37)

MLOps & Integration (525 questions)

Mechanical Engineering · Mechanical Core (501 questions)

Strength of Materials (39)Thermodynamics (39)Fluid Mechanics (39)Heat Transfer (39)Manufacturing Processes (39)Vibrations (39)Turbomachinery (39)Operations Research (39)Engineering Mechanics (27)Theory of Machines (27)Machine Design (27)Engineering Materials (27)IC Engines & Power Plants (27)Refrigeration & Air Conditioning (27)Industrial Engineering (27)

Electrical / EEE Engineering · Electrical Design (393 questions)

Protection & Switchgear (33)Substation Design (33)Cable & Busbar Sizing (33)Transformer & Motor Specification (33)Power Quality & Harmonics (33)Power System Software (33)Drives & Motor Control (33)PLC, SCADA & Instrumentation (33)LV Design & Panels (33)Renewable & Storage Design (33)Earthing, Lightning & Safety Design (33)Electrical Standards & Regulations (30)

Chemical Engineering · Plant Operations (345 questions)

Refinery & Petrochemical Processes (30)Pharma & Specialty Chemicals (30)Process Safety Management (30)HSE & Regulatory (30)Quality & Laboratory (30)Maintenance & Reliability (30)Utilities & Offsites (30)Plant Operations (27)Fertiliser, Chlor-alkali & Commodity Chemicals (27)Production Planning & Cost (27)Digitalisation & APC (27)Project & Commissioning (27)

Chemical Engineering · Process Design (336 questions)

P&ID, PFD & Documentation (30)HAZOP & Process Safety (30)Process Control Design (30)Reactor Design & Scale-up (30)Process Simulation (27)Heat Exchanger & Column Design (27)Pressure Vessels & Equipment (27)Piping & Hydraulics (27)Utilities & Energy Integration (27)Materials & Corrosion Selection (27)FEED & EPC Engineering Workflow (27)Environmental & Effluent Design (27)

Civil Engineering · Civil Core (351 questions)

Strength of Materials (30)RCC Fundamentals (30)Geotechnical Engineering (30)Fluid Mechanics & Hydraulics (30)Surveying (30)Transportation Engineering (30)Environmental Engineering (30)Building Materials & Construction (30)Water Resources & Irrigation (30)Engineering Mechanics (27)Structural Analysis (27)Steel Structures Fundamentals (27)

Civil Engineering · Civil Design & Codes (324 questions)

Bridges & Prestressed Concrete (30)RCC Design (IS 456) (27)Steel Design (IS 800) (27)Loads & Seismic (IS 875 / IS 1893 / IS 13920) (27)Foundation Design (27)CAD & BIM (27)Estimation & Costing (27)Concrete Technology (27)Pavement & Highway Design (27)Detailing & Drawings (27)Water & Wastewater Design (27)Structural Software (24)

Civil Engineering · Site & Project Mgmt (330 questions)

Site Execution Practice (30)QA/QC & Testing (30)Construction Methods (27)Project Planning & Scheduling (27)Contracts & Claims (27)Safety & HSE (27)Quantity Surveying & Billing (27)Construction Equipment (27)Materials Management (27)Regulations & Approvals (27)Sustainability & Green Building (27)Infrastructure Sectors (27)

Electronics & Comm. Engineering · VLSI Design (327 questions)

FPGA Design (30)RTL Design (Verilog / SystemVerilog) (27)CMOS & Device Physics (27)Static Timing Analysis (27)Synthesis & Logic Optimization (27)Physical Design (27)Verification (UVM) (27)DFT (27)Low Power Design (27)Analog & Mixed-Signal Design (27)Memory & Standard Cells (27)Computer Architecture & SoC (27)

Electrical / EEE Engineering · Plant & Utility Ops (330 questions)

Testing & Commissioning (30)Grid & Utility Operations (30)Maintenance Practices (27)Plant Electrical Operations (27)Energy Management & Audit (27)Renewable Plant O&M (27)EV & Charging Infrastructure (27)Electrical Safety & Regulation (27)Traction & Railways (27)Panel & Switchboard Manufacturing (27)Building Electrical & Fire Systems (27)Project & Vendor Management (27)

Design Patterns (138 questions)

Behavioral (30)Structural (21)Design Principles (21)Creational (18)SOLID Principles (18)Pattern Selection (15)Anti-patterns (15)

Spring (201 questions)

Beans & DI (30)Web MVC (27)Core & IoC Container (21)Spring Boot (21)Data & JPA (21)AOP (18)Security (18)Configuration & Profiles (15)Exception Handling & Validation (15)Testing (15)

Aptitude (676 questions)

Chemical Engineering · Chemical Core (324 questions)

Fluid Mechanics & Transport (27)Heat Transfer (27)Mass Transfer (27)Chemical Reaction Engineering (27)Chemical Engineering Thermodynamics (27)Process Control Basics (27)Mechanical Operations (27)Chemical Technology (27)Material & Energy Balance (27)Plant Design & Economics Basics (27)Process Instrumentation Basics (27)Materials & Corrosion Basics (27)

Electronics & Comm. Engineering · ECE Core (324 questions)

Network Theory (27)Analog Electronics (27)Digital Electronics (27)Signals & Systems (27)Communication Systems (27)Electromagnetics & Antennas (27)Control Systems (27)Microprocessors & Microcontrollers (27)Semiconductor Devices (27)Digital Signal Processing (27)Measurements & Instrumentation (27)Basic Electrical Engineering (27)

Electronics & Comm. Engineering · Embedded Systems (324 questions)

Embedded C & Firmware (27)Microcontrollers & Peripherals (27)Communication Protocols (27)RTOS (27)Embedded Linux & Drivers (27)Hardware & PCB Design (27)Power & Signal Integrity (27)Debugging & Tools (27)Automotive Embedded (27)IoT & Wireless (27)Bootloaders, OTA & Security (27)Testing & Standards (27)

Electrical / EEE Engineering · Electrical Core (324 questions)

Circuit Theory & Networks (27)Electromagnetic Fields (27)Electrical Machines (27)Power Systems (27)Power Electronics (27)Control Systems (27)Electrical Measurements & Instrumentation (27)Analog & Digital Electronics (27)Signals & Systems (27)Microprocessors & Microcontrollers (27)Electrical Materials & Safety Basics (27)Illumination & Utilization (27)

GraphQL (189 questions)

Schema & Types (27)Queries (27)Mutations & Subscriptions (18)Resolvers (18)Performance (N+1 & DataLoader) (18)Errors & Nullability (18)Tooling & Federation (18)Schema Definition Language (15)Pagination (Relay connections) (15)GraphQL vs REST (15)

SQL (423 questions)

Mechanical Engineering · Mechanical Design (324 questions)

CAD Modelling (27)GD&T (27)FEA & CAE (27)Machine Elements Design (27)Limits, Fits & Tolerances (27)Materials & Heat Treatment (27)DFM & DFA (27)Codes & Standards (27)Design Validation (27)Product Development & PLM (27)Pressure Vessels & Piping Design (27)Automotive Design (27)

Mechanical Engineering · Production & Plant (324 questions)

Production Planning & Control (27)Lean Manufacturing (27)Six Sigma & SPC (27)Quality Systems (27)Maintenance Management (27)Welding & Fabrication (27)CNC & Machining Practice (27)Automotive Manufacturing (27)HVAC & Plant Utilities (27)Industrial Safety (27)Supply Chain & Costing (27)Project Execution (27)

C# (216 questions)

Core Language & Types (24)OOP (24)Generics & Collections (24)LINQ (24)Delegates & Events (21)Async & Concurrency (21)Modern C# (21)Equality & Strings (21)Memory & GC (18)Exceptions (18)

CSS (180 questions)

Flexbox (24)Box Model & Layout (21)Grid (21)Selectors & Specificity (21)Modern CSS (21)Positioning (18)Units & Values (18)Responsive & Media Queries (18)Transitions & Animations (18)

FastAPI (180 questions)

Pydantic & Validation (24)Routing & Path Operations (21)Request Data (21)Dependency Injection (18)Responses (18)Async & Performance (18)Auth & Security (15)Errors & Middleware (15)Docs & OpenAPI (15)App Structure & Lifecycle (15)

HTML (192 questions)

Text & Content (24)Forms & Inputs (24)Semantic & Sectioning (24)Document Structure (21)Media & Graphics (21)Tables & Lists (21)Attributes & Global (21)Accessibility (ARIA) (18)Metadata & SEO (18)

Java (207 questions)

OOP & Classes (24)Core Language (21)Collections Framework (21)Functional (21)Modern Java (21)Concurrency & Threads (18)Memory & JVM (18)Strings & Equality (18)Modifiers (15)Generics (15)Exceptions (15)

PHP (171 questions)

Core Language & Types (24)Arrays (21)Strings & Functions (21)OOP (21)Modern PHP 8 (18)Superglobals & Web (18)Closures & Generators (18)Error Handling (15)Namespaces & Autoloading (15)

REST API (135 questions)

Status Codes (24)HTTP Methods (15)REST Principles (12)Resource Design & URLs (12)Idempotency & Safety (12)Versioning (12)Auth (12)Pagination & Filtering (12)Caching & Headers (12)Errors & Content Negotiation (12)

Blazor (150 questions)

Hosting Models (21)Lifecycle (18)Components (15)Data Binding (15)Routing (15)State & DI (15)Forms & Validation (15)Razor Syntax (12)JS Interop (12)Rendering (12)

.NET (177 questions)

Runtime & CLR (21)Memory & GC (21)Assemblies & Deployment (21)Platform Evolution (18)Base Class Library (18)Async & Threading (18)Build & Tooling (15)Configuration & Hosting (15)Interop (15)Versioning & Compatibility (15)

EF Core (168 questions)

DbContext & Sets (21)Modeling (21)Change Tracking (21)Relationships (18)Querying (18)Loading Strategies (18)Migrations (15)Performance (12)Concurrency (12)Transactions & Providers (12)

Firebase (147 questions)

Firestore (21)Authentication (18)Realtime Database (15)Security Rules (15)Cloud Functions (15)Storage (15)Hosting (12)Messaging & Analytics (12)Data Modeling (12)Pricing & Limits (12)

Flutter (150 questions)

Layout (21)Widgets (18)State Management (18)Dart Language (18)Rendering and Trees (15)Navigation (12)Lifecycle (12)Async and Streams (12)Styling and Material (12)Performance (12)

Git (144 questions)

Remote & Collaboration (21)Core Concepts (18)Merging vs Rebasing (18)Undoing Changes (18)Branching (15)History & Inspection (15)Advanced (15)Stashing & Tags (12)Internals (12)

Redis (159 questions)

Data Structures (21)Expiration & Eviction (18)Persistence (15)Caching Patterns (15)Pub/Sub & Streams (15)Transactions & Scripting (15)Replication & HA (15)Clustering (15)Performance (15)Use Cases (15)

Bash (159 questions)

Variables & Expansion (18)Conditionals & Tests (18)I/O & Redirection (18)Special Variables (18)Loops (15)Functions & Args (15)Globbing & Patterns (15)Arrays (15)Robustness (15)Process & Job Control (12)

Caching (150 questions)

Caching Patterns (18)HTTP Caching (18)Eviction Policies (15)Cache Problems (15)Invalidation (15)Consistency (15)Cache Layers (15)Distributed Caching (15)Metrics (12)Trade-offs (12)

Concurrency (150 questions)

Fundamentals (18)Synchronization (18)Hazards (18)Coordination (15)Atomicity & Memory (15)Async (15)Lock-Free (15)Models (12)Thread Pools (12)Patterns (12)

.NET MAUI (153 questions)

Fundamentals (18)Controls & Layouts (18)Data Binding & MVVM (18)XAML (15)Navigation (15)Handlers (15)Dependency Injection (15)Platform Integration (15)Lifecycle (12)Resources & Styling (12)

Functional Programming (150 questions)

Core Principles (18)Functions (18)Composition (15)Recursion (15)Data Transformation (15)Laziness (15)Handling Effects (15)Type Concepts (15)Immutability (12)State (12)

JavaScript (108 questions)

Types & Coercion (18)Scope & Closures (18)this & Functions (18)Async & Event Loop (18)Prototypes & Objects (18)ES6+ Features (18)

Kotlin (147 questions)

Null Safety (18)Variables & Types (18)Functional (18)Functions (15)Classes & OOP (15)Coroutines (15)Properties & Delegation (12)Collections (12)Control Flow (12)Interop & Idioms (12)

Message Queues (153 questions)

Core Concepts (18)Kafka (18)RabbitMQ (18)Messaging Models (15)Delivery Guarantees (15)Ordering (15)Reliability (15)Cloud Queues (15)Backpressure & Scaling (12)Patterns (12)

Node.js (90 questions)

Runtime & Event Loop (18)Modules (18)Core APIs (18)HTTP & Express (18)Async Patterns (18)

NoSQL (159 questions)

NoSQL Types (18)Data Modeling (18)CAP & Consistency (18)MongoDB (18)Partitioning & Scale (15)Replication (15)Cassandra (15)DynamoDB (15)Querying (15)When to Use (12)

Power BI (165 questions)

Components & Architecture (18)Power Query (18)Data Modeling (18)DAX Basics (18)DAX Functions (18)Data Connectivity (15)Visualizations (15)Filters & Interactivity (15)Sharing & Deployment (15)Performance (15)

React (90 questions)

Components & JSX (18)State & Effect Hooks (18)Memo, Ref & Context Hooks (18)Rendering & Performance (18)State & Data Flow (18)

Rust (165 questions)

Ownership & Borrowing (18)Traits (18)Error Handling (18)Collections & Iterators (18)Generics & Closures (18)Lifetimes (15)Types & Structs (15)Smart Pointers (15)Pattern Matching (15)Concurrency (15)

Testing (129 questions)

Test Levels (18)Test Doubles (15)Methodologies (12)Coverage (12)Test Quality (12)Assertions & Fixtures (12)Types of Testing (12)Non-Functional (12)Practices (12)Pitfalls (12)

TypeScript (90 questions)

Basic Types (18)Interfaces & Types (18)Generics (18)Narrowing & Guards (18)Utility & Composite Types (18)

ASP.NET Core (150 questions)

Middleware & Pipeline (15)Dependency Injection (15)Routing (15)Controllers & Minimal APIs (15)Model Binding & Validation (15)Configuration & Options (15)Hosting & Startup (15)Filters (15)Auth (15)Logging & Errors (15)

C++ (150 questions)

Core Language (15)Memory and RAII (15)OOP and Classes (15)Templates and Generics (15)STL Containers (15)STL Algorithms and Iterators (15)Move Semantics (15)Concurrency (15)Modern C++ (15)Undefined Behavior and Pitfalls (15)

Go (150 questions)

Core Language (15)Types & Structs (15)Interfaces (15)Goroutines & Concurrency (15)Channels (15)Error Handling (15)Memory & Performance (15)Generics (15)Standard Library & Idioms (15)Packages & Tooling (15)

Python (147 questions)

Data Types & Structures (15)Functions & Scope (15)Comprehensions & Iterators (15)Decorators & Closures (15)Generators & Async (15)Memory & Mutability (15)Exceptions (15)Modules & Packaging (15)Standard Library & Idioms (15)OOP & Dunder Methods (12)

React Native (150 questions)

Core Components (15)Styling & Layout (15)Navigation (15)State & Hooks (15)Native Modules & Bridge (15)New Architecture (15)Platform APIs (15)Performance (15)Lists & Touch (15)Build & Tooling (15)

Swift (150 questions)

Optionals (15)Value vs Reference Types (15)Memory Management (15)Protocols and Generics (15)Closures (15)Enums and Pattern Matching (15)Error Handling (15)Concurrency (15)Properties (15)SwiftUI vs UIKit (15)