KnowledgeGate AI Blog
Notes, strategy & exam updates
Written by the educators behind KnowledgeGate AI — organised by topic, refreshed when syllabi move, free to read.
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Service-based companies placement prep: Accenture, Capgemini and Cognizant compared
Most students sitting campus and off-campus drives apply to several service-based companies in the same window. Accenture, Capgemini and Cognizant all recruit freshers in large numbers, their tests overlap heavily, and yet each has one or two quirks that trip up candidates who prepared for a generic "aptitude and coding" test.
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GATE CS Preparation78 articles
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Booth's Algorithm for GATE: Signed Multiplication Traced Step by Step
Trace Booth multiplication through A, Q and Q-1, preserve the sign during every shift, and count additions and subtractions from bit transitions.
Flip-Flop Conversion for GATE: Excitation Tables and the SR, JK, D, T Conversion Recipe, Solved
Convert one flip-flop into another with the target transition, the available device's excitation table and a K-map. The solved JK-to-T case shows every row.
Pointers in C for GATE
Draw pointers as addresses in boxes, then trace double pointers, arrays, swaps and precedence without guessing. The worked outputs show the method GATE rewards.
Placement Preparation25 articles
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Infosys Pseudocode Questions: How to Trace Them Fast, with Solved Examples
Stop tracing pseudocode in your head. Use one repeatable table for output, error, and fill-in questions, with 15 solved examples across common archetypes.
Deloitte NLA Preparation: Test Pattern, Sections and How the Versant Round Works
Prepare for the cognitive and communication demands of Deloitte's NLA without guessing section counts. Use three worked aptitude patterns and a focused fourteen-day plan.
TCS NQT Coding Questions 2026: Pattern-Wise Solutions in Python and Java
TCS NQT coding questions grouped into six recurring patterns, from digit logic to array scans, each solved step by step in Python and Java with variants.
MCQ Practice36 articles
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Asymptotic Notations MCQs: 12 Solved Questions with Explanations
Solve 12 asymptotic notation MCQs with concise explanations of bounds, dominant terms, composition rules, strict notations, and case analysis.
Mongoose Schemas and Models: Validation, Population, and the Pitfalls That Silently Break Node Apps
Build User and Course schemas, populate ObjectId references, and avoid the unique-index, update-validator, equality, and timestamp mistakes that damage data.
Time Complexity MCQs: 12 solved questions on asymptotic analysis
12 solved time complexity MCQs with explanations: Big-O ordering, loop and recursion analysis, the Master Theorem and recurrences, all previous-year GATE.
Government & Teaching Exams59 articles
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DSSSB TGT Computer Science Eligibility and Exam Pattern: One Tier, Negative Marking and Qualification Rules
Understand the broad eligibility route and the one-tier CBT before you prepare. This guide also shows which details must be checked in the current DSSSB advertisement.
CTET Qualifying Marks and Certificate Validity
Understand the CTET pass threshold, how category concessions are applied, why the certificate lasts for life, and when another attempt is worth taking.
SSC CGL Posts Explained: How to Set Your Preference Order
Build your SSC CGL preference list around the work, location, career path and transfer pattern you can actually live with, then confirm every current detail officially.
Programming Languages6 articles
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Approaches to AI: The Four Approaches, Worked Examples, and How Exams Test Them
Separate the four classic approaches to AI, score a rational vacuum agent step by step, and learn the distinctions that matter in exams and interviews.
Functions in C: Call by Value vs Simulated Call by Reference and the Swap Question Family
See why a normal C swap changes only local copies, then trace the pointer version and the aliasing, increment, array, struct, and lifetime traps around it.
HTML Interview Questions for Freshers: Semantic Tags, Forms and the Attributes That Get Tested
Learn the HTML details interviews actually probe, from semantic landmarks and form submission to script loading, labels, and accessibility.