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Practice aptitude, reasoning, coding, and core CS topics with focused question banks and revision material.
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50 .NET interview questions with detailed answers covering C# fundamentals, CLR/GC, async/await, LINQ, generics, delegates, .NET 8 features, dependency injection, and Entity Framework. Includes code examples and predict-the-output questions.
Speed is crucial in placement aptitude tests. This comprehensive reference sheet contains 100+ shortcut tricks covering Speed Maths, Vedic Maths, Quick...
Arrays are the foundation of computer science and the most frequently asked data structure in technical interviews at companies like Google, Amazon, Microsoft,...
> Comprehensive Topic Guide with 30 practice questions, shortcuts, and detailed solutions for TCS, Infosys, Wipro, Banking, SSC, and all major placement exams.
Master binary search patterns for placement interviews. 20+ solved problems with templates for sorted arrays, rotated arrays, search space reduction, and answer-space binary search. Updated 2026.
Binary Trees are the cornerstone of recursive thinking and appear in 35-40% of technical interviews at top tech companies. They test your ability to: Think...
Master bit manipulation for placement interviews. 18+ solved problems covering XOR tricks, bit counting, power of two, subset generation, and bitmask DP. Python and Java code. Updated 2026.
Blood Relations is a logical reasoning topic that tests your ability to understand and analyze family relationships. This topic is crucial for placement exams...
Boats and Streams is a popular topic in quantitative aptitude sections. Problems involve calculating speeds, distances, and times considering the effect of...
> Comprehensive Topic Guide with 30 practice questions, shortcuts, and detailed solutions for TCS, Infosys, Wipro, Banking, SSC, and all major placement exams.
Critical Reasoning is one of the most challenging yet scoring sections in placement exams. Top companies like [TCS](/article/tcs-placement-papers-2026/),...
Prepare for Data Interpretation in campus placements with 20 solved questions on tables, charts & graphs. Covers TCS, Infosys, Wipro & top MNCs. Freshers 2026.
Every data set in this drill is invented for arithmetic practice, not evidence from an employer assessment. An employer's official invitation and current...
Timed data interpretation sectional test for 2026: 25 MCQs across tables, bar data, pie shares, and line trends, with answer key and step-by-step worked solutions.
Data interpretation solved sets for 2026: six complete DI sets across tables, bar data, pie shares, line trends, and caselets, with 40+ fully worked solutions.
Database Management Systems (DBMS) form the backbone of modern software applications. Understanding DBMS concepts is crucial for technical interviews, as...
Top 25 design patterns interview questions with code examples. Singleton, Factory, Observer, Strategy, Decorator, Command, Proxy, and more. Python and Java examples. Updated 2026.
Master Direction Sense for campus placements with 20 solved questions, shortcut methods, and expert tips. Essential for TCS, Infosys, Wipro, and all major companies.
Direction sense is a fundamental topic in logical reasoning that appears frequently in campus placement exams conducted by top IT companies like...
50 Django interview questions with detailed answers covering ORM, views, templates, middleware, authentication, REST Framework, signals, celery, and Django 5 features. Includes code examples, predict-the-output questions, and comparison tables.
Master all 8 dynamic programming patterns for placement interviews. 20+ solved problems with state definitions, recurrences, and Python code. Knapsack, LCS, interval DP, bitmask DP. Updated 2026.
Crack dynamic programming in placement interviews, 50+ solved DP questions covering LCS, knapsack, and tree DP. Prep guide for Google, Amazon & FAANG freshers 2026.
45 Express.js and NestJS interview questions with detailed answers covering middleware, routing, dependency injection, TypeScript integration, performance, and when to choose each framework. Includes code comparisons and decision tables.
Master the fast-slow pointer (Floyd's cycle detection) pattern for placement interviews. 14+ solved problems covering linked list cycle, duplicate number, happy number, and reorder list. Updated 2026.
50 Flutter interview questions with detailed answers covering widgets, state management, Dart async, navigation, platform channels, animations, and Flutter 3 features. Includes code examples, predict-the-output questions, and comparison tables.
Master graph traversal for placement interviews. BFS, DFS, topological sort, cycle detection, connected components, shortest path. 20+ solved problems with Python code. Updated 2026.
A comprehensive guide to 100 trending GD topics for campus placements in 2026, organized by category with key talking points and expert tips to help you ace...
Highest Common Factor (HCF) and Lowest Common Multiple (LCM) are fundamental concepts in number theory that appear frequently in placement exams. These...
Mathematical Inequality is a crucial reasoning topic that tests your ability to understand relationships between variables and decode symbolic representations....
50 Laravel interview questions with detailed answers covering Eloquent ORM, routing, middleware, queues, authentication, service container, events, and Laravel 11 features. Includes code examples and comparison tables.
Logical reasoning puzzles with answers for 2026: 40+ solved puzzles across seating, blood relations, ranking, directions, and logical deductions with full explanations.
Timed logical reasoning sectional test for 2026: 30 MCQs across series, coding-decoding, blood relations, directions, seating, and syllogisms, with answer key and worked solutions.
Master low-level design interviews with 20 LLD problems. Design parking lot, elevator, chess game, ATM, hotel management, and more. SOLID principles, design patterns, class diagrams in Python. Updated 2026.
Mensuration is the branch of mathematics that deals with the measurement of geometric figures and their parameters like length, area, volume, and surface area....
Master the merge intervals pattern for placement interviews. 14+ solved problems covering interval merging, insertion, meeting rooms, and non-overlapping intervals. Python code. Updated 2026.
Master Mixtures & Alligations for 2026 placements. Learn alligation rule, successive dilution & profit formulas. Solve 18+ TCS, Infosys, Wipro exam PYQs.
Mixtures and Alligations is a fundamental topic in quantitative aptitude dealing with combining ingredients of different values or concentrations. This guide...
Master the monotonic stack pattern for placement interviews. 16+ solved problems covering next greater element, largest rectangle, trapping rain water, and stock span. Python code. Updated 2026.
Computer networking forms the backbone of modern computing, enabling communication between devices across the globe. Understanding networking fundamentals is...
50 Next.js interview questions with detailed answers covering App Router, Server Components, SSR/SSG/ISR, data fetching, middleware, authentication, and performance optimization. Includes code examples and comparison tables.
Number series solved examples for 2026: 45+ problems across arithmetic, geometric, square, cube, mixed, and odd-one-out series, with full step-by-step solutions.
Master SOLID principles and OOPs concepts for placement interviews. Single Responsibility, Open/Closed, Liskov, Interface Segregation, Dependency Inversion with real examples in Python. Updated 2026.
Operating Systems form the foundational layer of computer systems, managing hardware resources and providing services for computer programs. Understanding OS...
Master Percentages and Ratios for campus placements with 20 solved questions, shortcut formulas, and expert tips. Essential for TCS, Infosys, Wipro, and all major companies.
Percentage is the cornerstone of quantitative aptitude and the most fundamental topic that forms the basis for numerous other concepts including Profit & Loss,...
> Comprehensive Topic Guide with 30 practice questions, shortcuts, and detailed solutions for TCS, Infosys, Wipro, Google, Microsoft, and all major placement...
Permutation and combination solved examples for 2026: 40+ problems across arrangements, selections, circular, and constraints, with step-by-step solutions and a formula table.
Master Permutation & Combination for Placement Exams 2026. Learn nPr/nCr formulas, circular arrangements, distribution tricks & solved PYQs from top companies.
Master Pipes & Cisterns for 2026 placement drives. Learn formulas, leak tricks & 23 solved TCS, Infosys, Wipro questions to ace your quantitative aptitude.
Pipes and Cisterns problems involve calculating the time taken to fill or empty a tank using multiple pipes. This topic is closely related to Time and Work....
A) 25 liters B) 30 liters C) 35 liters D) 40 liters
A) 4% profit B) 4% loss C) No profit no loss D) 2% loss
Full timed placement aptitude mock test 3 for 2026: 40 questions across quantitative, logical reasoning, and verbal ability with answer key and step-by-step worked solutions.
Full timed placement aptitude mock test 4 for 2026: 40 questions across quantitative, logical reasoning, and verbal ability with answer key and step-by-step worked solutions.
Full timed placement aptitude mock test 5 for 2026: 40 questions across quantitative, logical reasoning, and verbal ability with answer key and step-by-step worked solutions.
Full timed placement aptitude mock test 6 for 2026: 40 questions across quantitative, logical reasoning, and verbal ability with answer key and step-by-step worked solutions.
Full timed placement aptitude mock test 7 for 2026: 40 questions across quantitative, logical reasoning, and verbal ability with answer key and step-by-step worked solutions.
Full timed placement aptitude mock test 8 for 2026: 40 questions across quantitative, logical reasoning, and verbal ability with answer key and step-by-step worked solutions.
The last week before your placement drive is crucial. This isn't the time to learn new concepts, it's the time to consolidate, revise, and build confidence....
Master the prefix sum technique for placement interviews. 16+ solved problems covering range sum queries, subarray sum equals k, 2D prefix sum, and difference arrays. Python code. Updated 2026.
Master Probability questions for placement with step-by-step solutions, essential formulas, shortcuts, and PYQs from top IT companies.
Probability is a fundamental topic in quantitative aptitude that measures the likelihood of an event occurring. It plays a crucial role in placement exams for...
Probability solved examples for 2026: 40+ problems across dice, coins, cards, balls, and conditional cases, with step-by-step solutions and a formula reference table.
Problems on Trains is one of the most frequently asked topics in aptitude tests for campus placements. This topic tests your ability to calculate relative...
Master Profit and Loss questions for placements with 20 solved examples, shortcut formulas, and expert tips. Essential for TCS, Infosys, Wipro, and all major company exams.
Profit and Loss is a fundamental topic in commercial mathematics that forms the backbone of quantitative aptitude sections in placement exams and government...
Master puzzles for placement exams 2026. Practice linear, circular, floor & month-day puzzles with step-by-step solutions, shortcuts & PYQs from top companies.
Puzzles are the ultimate test of logical reasoning and form an integral part of placement exams and competitive examinations. They evaluate your ability to...
Complete quantitative aptitude formula cheat sheet for 2026: every key formula across percentages, profit-loss, ratios, time-work, TSD, interest, mensuration, and more.
Timed quantitative aptitude sectional test for 2026: 30 MCQs spanning arithmetic, algebra, ratios, time-speed-distance, and probability, with answer key and worked solutions.
> Comprehensive Topic Guide with 30 practice questions, shortcuts, and detailed solutions for TCS, Infosys, Wipro, and all major placement exams.
45 React Native interview questions with detailed answers covering the new architecture (JSI/Fabric/TurboModules), hooks, navigation, state management, performance, and native modules. Includes code examples and comparison tables.
Logical reasoning shortcut tricks for 2026: fast methods for series, coding, blood relations, directions, ranking, syllogisms, and clocks, each with a worked example.
Master recursion and backtracking for placement interviews. 18+ solved problems covering subsets, permutations, N-Queens, Sudoku, and combination sum. Templates with Python code. Updated 2026.
Master seating arrangement questions for placement exams 2026 with expert strategies, practice problems, and detailed solutions to crack logical sections.
Ace Simple and Compound Interest questions for placement with proven formulas, smart shortcuts, and 20+ practice problems with detailed step-by-step solutions.
Master the sliding window pattern for placement interviews. 20+ solved problems with Python/Java code, time complexity, and when-to-use decision guide. Updated 2026.
Master Speed Time Distance questions for placement with our 2026 guide. Learn formulas, tricks, and solve practice problems with solutions for TCS, Infosys, and more.
Strings are one of the most commonly tested topics in technical interviews. String manipulation involves operations like searching, pattern matching, parsing,...
40 Svelte interview questions with detailed answers covering reactivity, stores, lifecycle, SvelteKit SSR, transitions, and Svelte 5 runes. Includes code examples, predict-the-output questions, and comparison tables.
Master Syllogism questions for placement with step-by-step solutions, Venn diagram approach, complementary pairs, and exam tricks for 2026 placement drives.
Design a real-time chat application like WhatsApp or Slack. Requirements, WebSocket connections, message delivery, read receipts, push notifications, and database schema. FAANG system design 2026.
Design a social media news feed like Twitter or Instagram. Fan-out strategies, timeline generation, ranking, caching, and celebrity problem. FAANG system design interview guide 2026.
Design a scalable notification service handling push, email, and SMS at 10M notifications/day. Requirements, architecture, Kafka, priority queues, templates, and deduplication. FAANG system design 2026.
Complete low-level design of a parking lot system. Requirements, class hierarchy, ticket system, payment processing, and concurrency handling. Python code with SOLID principles. Updated 2026.
Design a distributed rate limiter from scratch. Requirements, algorithms (token bucket, sliding window), Redis implementation, API design, and scaling. FAANG system design interview guide 2026.
Design TinyURL from scratch. Random base62 ID generation, hash collision resolution, vanity custom URLs, QR code generation, bulk API, analytics, and multi-region architecture. FAANG system design 2026.
Design a URL shortener like bit.ly or TinyURL. ID generation strategies (base62, MD5, Snowflake), redirect architecture, analytics, expiry handling, and database schema. FAANG system design 2026.
Master Time and Work problems for campus placements with 20 practice questions, expert tips, and shortcut formulas. Essential guide for TCS, Infosys, Wipro, and all major companies.
Time and Work is a crucial topic in quantitative aptitude that tests your ability to solve problems related to efficiency, productivity, and resource...
Time, Speed and Distance (TSD) is one of the most scoring and frequently asked topics in quantitative aptitude sections of placement exams and competitive...
Time, speed, and distance solved examples for 2026: 40+ problems across basics, trains, boats, and average speed, with full step-by-step solutions and a formula table.
Master the top-K elements pattern for placement interviews. 14+ solved problems using heaps, quickselect, and bucket sort. Kth largest, K frequent elements, K closest points. Python code. Updated 2026.
Master tree traversal patterns for placement interviews. Inorder, preorder, postorder, level-order, zigzag, boundary traversal, LCA, and diameter. 20+ solved problems with Python code. Updated 2026.
Master Trie (prefix tree) for placement interviews. 12+ solved problems covering word insertion, prefix search, autocomplete, word search II, and replace words. Python code. Updated 2026.
Master the two pointers technique for placement interviews. 18+ solved problems covering pair sums, sorted arrays, linked lists, and palindromes. Updated 2026.
Master Union-Find (DSU) for placement interviews. 14+ solved problems covering connected components, cycle detection, Kruskal's MST, and number of islands. Python code with path compression. Updated 2026.
Timed verbal ability sectional test for 2026: 30 MCQs across synonyms, antonyms, grammar, error spotting, idioms, and sentence rearrangement, with answer key and solutions.
50 Vue.js interview questions with detailed answers covering reactivity, Composition API, Vue Router, Pinia, performance optimization, and advanced patterns. Includes code examples, predict-the-output questions, and comparison tables.