MBA

How to turn a CAT percentile into an MBA college shortlist

Turn a CAT percentile into a college shortlist in five steps: category, selection process, three tiers and cost, shown on a hypothetical 91 percentile.

MBA

MBA ROI calculator: how to work out payback and break-even

How to work out MBA ROI: total cost, loan instalment and payback. A hypothetical example run in Python gives 6.99 years, or 13.10 if pay is 20% lower.

MBA

Best free MBA entrance notes and PDFs in 2027

Ten free MBA entrance notes and PDF sources checked on 11 November 2026, from MBA One Stop's 14 notes to official CAT and GMAC pages, plus a weekly plan.

MBA

Best free CAT mock tests in 2027: where to practise

Ten places to take a free CAT mock before CAT 2026 on 29 November, from the official IIM mock to CAT Compass, with format, solutions and a limit for each.

MBA

Best MBA college predictor tools in 2027 and how they differ

Ten MBA college predictor and shortlist tools opened on 11 November 2026: inputs, exams covered, outputs and one limit each, and why IIM shortlists differ.

Startups

How to write a business plan: lean canvas and a one-page plan

How to write a business plan: pick a format, fill the 9-box Lean Canvas and test unit economics, with a hypothetical Pune tuition example in Python.

Business Analytics

OKRs vs KPIs: differences, examples and how to use both

OKRs vs KPIs: OKRs drive change with 3 to 5 key results, KPIs track ongoing health. Differences, three worked examples with arithmetic and mistakes.

Software Engineering

System design basics for freshers: a beginner framework with examples

System design basics for freshers: a 7-step framework, 5 core building blocks and a URL shortener designed with a tested estimate of 3858 reads per second.

Data Analytics

SQL interview questions and answers for 2027: from basics to joins

SQL interview questions and answers: 20 questions on joins, aggregation, CTEs and window functions, each run on SQLite 3.54.0 with the real output shown.

Software Engineering

GraphQL vs REST: differences, trade-offs and when to use each

GraphQL vs REST: endpoints, response shape, caching, versioning and errors compared, with a tested Node example. GraphQL spec edition: September 2025.

Software Engineering

What is CI/CD? Pipelines explained with a GitHub Actions example

What is CI/CD? Continuous integration and delivery explained with the stages of a pipeline and a GitHub Actions workflow linted with actionlint 1.7.12.

Software Engineering

What is Kubernetes? Pods, deployments and services for beginners

What is Kubernetes? An open source platform for running containers at scale, explained with five manifests (Pod, Deployment, Service) checked against 1.37.

Artificial Intelligence

A2A vs MCP: how the Agent2Agent and Model Context protocols differ

A2A vs MCP: MCP links an agent to tools and data, A2A links agents to each other. Versions (A2A 1.0.0, MCP 2026-07-28), governance and a tested A2A agent.

Artificial Intelligence

What is context engineering? How it differs from prompt engineering

Context engineering is choosing what enters an LLM's context window each step: Anthropic's 29 September 2025 definition, techniques and a tested example.

Software Engineering

QA and software testing roadmap for 2027: manual to automation

A software testing roadmap for 2027: ISTQB test levels, bug reports, API tests, Playwright vs Selenium and CI, with a pytest suite run on Python 3.12.

Product Management

UX design roadmap for 2027: skills, tools and a first portfolio

A UX design roadmap for 2027 in eight stages, from fundamentals to a portfolio, with WCAG 2.2 accessibility checks and a tested colour contrast script.

Data Analytics

Data engineer roadmap for 2027: SQL, pipelines and the cloud

A data engineer roadmap for 2027 in nine stages, from SQL and Python to Airflow, dbt and Kafka, with a DuckDB pipeline tested on Python 3.12.

Software Engineering

DevOps engineer roadmap for 2027: skills, tools and projects

A DevOps roadmap for 2027 in ten stages, from Linux and Git to Kubernetes and Terraform, with DORA's five delivery metrics and a tested Python example.

Software Engineering

Cloud engineer roadmap for 2027: skills, certifications and projects

A cloud engineer roadmap for 2027 in eight stages, from Linux and networking to infrastructure as code, with subnet and S3 scripts tested on Python 3.12.

Digital Marketing

AI visibility and GEO tracking tools in 2027: what they measure

AI visibility tools compared on vendor pages on 11 November 2026: what ten tools measure, what no tool can show, and a spreadsheet method with code.

Digital Marketing

Best email marketing and automation tools in 2027

Email marketing tools checked on vendor pages on 11 November 2026: ten compared, plus Google's sender rules and the status of India's DPDP Act, 2023.

Product Management

Best UX research and prototyping tools in 2027: ten compared

UX research tools and prototyping tools checked on vendor pages on 11 November 2026: ten compared, plus the current status of Adobe XD and Hotjar.

Product Management

Best product analytics tools in 2027: Mixpanel, Amplitude, PostHog

Product analytics tools checked on vendor pages on 11 November 2026: ten tools, their event models, one limit each and which publish code on GitHub.

Cybersecurity

Best cybersecurity tools for beginners in 2027, and legal practice

Cybersecurity tools for beginners as of 11 November 2026: Wireshark, Nmap, Burp Suite, ZAP and more, plus legal practice labs and what India's IT Act says.

Software Engineering

Best API testing tools in 2027: Postman, Bruno, Insomnia and more

API testing tools compared as of 11 November 2026: Postman, Bruno, Insomnia, Hoppscotch, curl, HTTPie, Swagger UI and k6, with storage and one limit each.