600+ Free Guides

IT Career Guides & Free Resources

Expert roadmaps, tutorials, salary guides and interview prep across Data Science, Generative AI, Python, Cloud & Analytics — written by GloryTecks trainers in Hyderabad.

All articles

AWS
6 May 2026 7 min

Event-Driven Pipelines with Lambda and S3

An event-driven pipeline starts work the moment a file arrives in S3. This guide explains S3 event notifications, writes a Lambda handler that validates and converts a real file, and runs it twice on the same event to show idempotency. It also covers encoded keys, loops, failure handling, and when to add a queue.

GloryTecks Team
Read
Azure Data Factory
6 May 2026 7 min

Azure Synapse Pipelines vs Standalone ADF

Synapse pipelines are built on Azure Data Factory, so most of what you know transfers. The gaps are few and specific: integration runtime sharing, the SSIS runtime, global parameters, Power Query and how deployment works. This guide lists each documented difference, what it means in practice, and how to choose.

GloryTecks Team
Read
Data Science
6 May 2026 5 min

Best Free Datasets for Data Science Practice in 2026

Free datasets for data science practice, organised by the skill you want to build: built-in data for learning algorithms, public-sector data for cleaning, large trip records for performance, text and image collections, dataset search engines, and a checklist for licence and quality.

GloryTecks Team
Read
Generative AI
6 May 2026 5 min

Top Generative AI Projects to Build for Your Portfolio

Most generative AI portfolios are chatbot demos that look alike. This guide proposes eight projects, from a structured extractor to an agent over a database, each built on a public dataset with a clear licence and each with a measurement to report, so the portfolio shows engineering rather than enthusiasm.

GloryTecks Team
Read
Data Analytics
6 May 2026 5 min

Web Analytics Basics: Understanding User Behavior

The basics of web analytics: how Google Analytics 4 measures a site with events, users, sessions, engagement and key events, how UTM tags attribute traffic, and what 12,330 real shop sessions reveal about browsing depth, new versus returning visitors and page value, including two numbers that mislead if read naively.

GloryTecks Team
Read
Power BI
6 May 2026 7 min

Calculation Groups in Power BI Explained

Calculation groups in Power BI explained: the measure explosion they solve, how SELECTEDMEASURE turns one expression into a calculation for every measure, a time intelligence group applied to two real measures, dynamic format strings, how precedence combines groups, and the limitations to check before adding one.

GloryTecks Team
Read