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Practice aptitude, reasoning, coding, and core CS topics with focused question banks and revision material.
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.NET is Microsoft's cross-platform, open-source developer platform. Candidates report that C# language fundamentals, CLR internals (GC, value vs reference...
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.
Candidates report binary search as appearing in over roughly 20% of FAANG coding rounds. Based on public preparation resources and candidate-reported interview...
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...
Candidates report bit manipulation as appearing in roughly 10% of FAANG coding rounds and frequently as a follow-up question after a brute force solution....
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.
Data Interpretation (DI) is one of the most scoring and crucial sections in placement exams and sarkari exams alike. Whether you're appearing for...
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...
Candidates report design pattern questions in roughly 25-30% of SDE-2 and senior rounds at product companies. Based on public preparation resources and...
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...
Django is a high-level Python web framework built on the "batteries-included" philosophy. Candidates report that the ORM (select_related, prefetch_related,...
Candidates report that DP is the single pattern that most frequently separates shortlisted candidates from rejected ones in FAANG rounds. Based on public...
Crack dynamic programming in placement interviews, 50+ solved DP questions covering LCS, knapsack, and tree DP. Prep guide for Google, Amazon & FAANG freshers 2026.
Express.js and NestJS are the two most common Node.js backend frameworks in production. Candidates report that the core differences in architecture and...
Candidates report fast-slow pointer questions in roughly 10-15% of FAANG linked list rounds. Based on public preparation resources and candidate-reported...
Flutter is Google's UI toolkit for building natively compiled applications for mobile, web, desktop, and embedded from a single Dart codebase. Candidates...
Candidates report graph problems as appearing in roughly 20-25% of FAANG coding rounds and approximately 10-15% of service company rounds, based on public...
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....
Laravel is the most widely used PHP framework for web application development. Candidates report that Eloquent ORM and relationships, the service container and...
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.
Candidates report LLD rounds as the deciding factor in roughly 30-40% of SDE-2 and senior engineer offers at companies like...
Mensuration is the branch of mathematics that deals with the measurement of geometric figures and their parameters like length, area, volume, and surface area....
Candidates report interval problems in roughly 10-15% of FAANG rounds and frequently in Uber, [Goldman Sachs](/article/goldman-sachs-placement-papers-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...
Candidates report monotonic stack as a pattern interviewers specifically probe for, since it distinguishes candidates who know O(n) solutions from those who...
Computer networking forms the backbone of modern computing, enabling communication between devices across the globe. Understanding networking fundamentals is...
Next.js is the most widely adopted React meta-framework, used for production web applications at scale. Candidates report that App Router architecture, React...
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.
Candidates report SOLID principle questions in roughly 30-40% of SDE-2 and senior interviews at product companies, and in virtually all LLD rounds. Based on...
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....
Candidates report prefix sum as one of the highest-frequency array optimization techniques across Amazon, Google, and service company assessments. Based on...
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.
React Native enables building truly native iOS and Android applications using React and JavaScript/TypeScript. Candidates report that the new architecture...
Logical reasoning shortcut tricks for 2026: fast methods for series, coding, blood relations, directions, ranking, syllogisms, and clocks, each with a worked example.
Candidates report backtracking as appearing in roughly 15% of FAANG coding rounds and frequently in service company coding assessments. Based on public...
Master seating arrangement questions for placement exams 2026 with expert strategies, practice problems, and detailed solutions to crack logical sections.
Seating Arrangement is a crucial logical reasoning topic that tests your ability to visualize spatial relationships and process multiple conditions...
Ace Simple and Compound Interest questions for placement with proven formulas, smart shortcuts, and 20+ practice problems with detailed step-by-step solutions.
Candidates report sliding window as one of the top five most-asked array patterns across Amazon, Microsoft, and service company NQT rounds. Based on public...
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,...
Svelte takes a fundamentally different approach from React and Vue by shifting work to compile time rather than runtime. Candidates report that Svelte's...
Master Syllogism questions for placement with step-by-step solutions, Venn diagram approach, complementary pairs, and exam tricks for 2026 placement drives.
Candidates report chat application design in roughly 15-20% of FAANG system design rounds. Based on public preparation resources and candidate-reported...
Candidates report news feed design in roughly 15% of FAANG system design rounds and frequently at social product companies. Based on public preparation...
Candidates report notification service in roughly 10-15% of backend system design rounds, particularly at consumer product companies. Based on public...
Candidates report parking lot as the most frequently asked LLD problem, appearing in roughly 25-30% of LLD rounds at Amazon,...
Candidates report rate limiter as appearing in roughly 20% of FAANG system design rounds and as a near-universal design question at API platform companies...
Candidates report TinyURL-specific system design in roughly 10-15% of FAANG rounds, typically at the L4-L5 level. Based on public preparation resources and...
Candidates report URL shortener as one of the most common warmup system design questions, appearing in roughly 20-25% of FAANG rounds and frequently as the...
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.
Candidates report top-K questions as appearing in roughly 15-20% of FAANG data structure rounds. Based on public preparation resources and candidate-reported...
Candidates report tree questions in roughly 20-25% of all coding interview rounds, based on public preparation resources and candidate-reported interview...
Candidates report Trie problems in roughly 8-12% of FAANG rounds, particularly at companies with search products (Google, Amazon, Microsoft). Based on public...
Candidates report two pointers as one of the most consistently asked array patterns across FAANG and service company rounds. Based on public preparation...
Candidates report Union-Find appearing in roughly 10% of FAANG graph rounds and more frequently in competitive programming contexts. Based on public...
Timed verbal ability sectional test for 2026: 30 MCQs across synonyms, antonyms, grammar, error spotting, idioms, and sentence rearrangement, with answer key and solutions.
Vue.js is a progressive JavaScript framework for building user interfaces. Candidates report that reactivity internals, Composition API patterns, Vue Router...