Examifyr Blog
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Practical guides to help you prepare for coding exams and technical interviews — and know exactly when you're ready.
- Python
Apr 2026 · 5 min5 Python Concepts You Must Know Before Your Exam
Most Python beginners skip these five areas — and they show up on every exam. Here's what to study and how to spot gaps before test day.
Read article → - Python
Apr 2026 · 6 minAm I Ready to Learn Python? A Practical Self-Assessment
Not sure if you have the right foundation? Here's an honest checklist to find out where you stand — and a free readiness test to confirm.
Read article → - SQL
Apr 2026 · 6 minThe Most Common SQL JOIN Mistakes (And How to Avoid Them)
JOINs are where most SQL beginners lose marks. Here are the mistakes that come up most often in exams and interviews — with clear fixes.
Read article → - JavaScript
Apr 2026 · 6 minJavaScript ES6+ Features You'll Be Tested On in Any Interview
Modern JavaScript interviews expect you to know ES6+ cold. Here are the features that come up most, with examples of exactly how they're tested.
Read article → - HTML & CSS
Apr 2026 · 5 minCSS Flexbox vs Grid: When to Use Which (And What Interviewers Ask)
Flexbox and Grid confuse most front-end beginners. Here's a clear breakdown of when to use each — and the questions you'll face in interviews.
Read article → - SQL
May 2026 · 6 minSQL Window Functions vs Aggregate Functions: What's the Difference?
Window functions and aggregate functions both compute summaries — but they behave completely differently. Here's exactly when to use each, with side-by-side examples.
Read article → - TypeScript
Aug 2026 · 7 minTypeScript vs JavaScript: Key Differences Tested in Every Interview
Interviewers expect TypeScript fluency beyond just "it adds types". Here are the features — generics, narrowing, type guards — that trip up JS developers.
Read article → - HTML & CSS
Aug 2026 · 7 minCSS Exam Cheat Sheet & Practice Questions 2026
Selectors, specificity, box model, Flexbox, Grid, positioning, and responsive design — each with a practice question and answer. Bookmark before your next CSS exam.
Read article → - Data Science
Sep 2026 · 8 minHow to Prepare for Data Scientist Exams: Practice Questions & Study Guide
A practical guide to data scientist exam prep — what topics are tested (NumPy, Pandas, statistics, ML), practice questions for each area, and a free readiness test.
Read article → - Python
Sep 2026 · 8 minPython Exam Practice Questions 2026
Python exam practice questions covering data types, loops, functions, OOP, and the standard library — with answers and explanations. Study smarter before your next Python exam.
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