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.
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Azure Data Factory Interview Questions and Answers
Azure Data Factory interview questions grouped the way interviewers ask them: fundamentals, the Copy activity, control flow, triggers, incremental loading, error handling, data flows, security and deployment, then scenarios. Each answer gives the documented fact, the reasoning, and the follow-up to expect.
Loading Data into BigQuery: Batch and Streaming
BigQuery can be loaded in batches from files or fed continuously through the Storage Write API. This guide compares the methods by latency, cost, limits and what a retry does, with documented commands, a model of at-least-once against exactly-once delivery, and a rule for choosing.
NumPy Interview Questions for Data Roles
NumPy questions check whether you understand what an array really is: a block of typed memory with a shape. Ten questions, answered on 1,599 real wine samples with NumPy 2, cover axes, views versus copies, broadcasting, silent integer overflow, NaN, float comparison, ties in top-N, vectorisation and seeds.
Incremental Data Loading in Azure Data Factory
Incremental loading copies only what changed since the last run. This guide explains the four approaches Azure Data Factory documents, builds the watermark pattern step by step, runs it on a real table to show what it catches and what it silently misses, and says when to use change tracking, dated folders or windows.
Statistics Interview Questions for Data Science
Statistics questions in data science interviews test judgement more than formulas. Eight common questions are worked here on 12,330 real online shopping sessions: skewed averages, standard error, p-values two ways, a bootstrap interval, a confounder in a weekend effect, multiple testing, outliers and sample size.
Azure Data Engineer Certification (DP-203) Guide
Exam DP-203 and the Azure Data Engineer Associate certification were retired on 31 March 2025. This guide explains what that means for people who hold it or were studying for it, what the exam covered, how the Fabric Data Engineer Associate exam DP-700 differs, and how to plan your preparation now.