TechBis

Top 10 Power BI interview questions for freshers in 2025 1. What is Power BI? Explain its key components. Power BI is a business analytics tool by Microsoft for visualizing data and sharing insights. Key components: Power BI Desktop (for report creation) Power BI Service (cloud-based sharing) Power BI Mobile (mobile access) DAX (Data Analysis Expressions) (formula language) 2. What is Power Query, and how is it used in Power BI? Power Query is the ETL (Extract, Transform, Load) tool in Power BI for: Cleaning data (removing duplicates, fixing errors) Merging datasets Transforming data (splitting columns, pivoting) 3. Explain the difference between “Import” and “DirectQuery” modes. Import Mode : Data is loaded into Power BI’s memory (fast but limited by dataset size). DirectQuery : Data stays in the source (real-time but slower performance). 4. What is DAX? Give an example of a common DAX function. DAX is Power BI’s formula language for calculations.  Example: Total Sales = SUM...

Exploring the Azure Portal: Your Gateway to Microsoft’s Cloud Universe In today’s fast-evolving tech landscape, cloud computing has become the backbone of businesses, developers, and IT enthusiasts alike. Among the giants in this space, Microsoft Azure stands tall, offering a robust suite of services that cater to everything from hosting websites to running AI-driven applications. At the heart of this ecosystem lies the Azure Portal —a powerful, user-friendly web interface that brings the full potential of Azure to your fingertips. Whether you’re a beginner dipping your toes into cloud computing or a seasoned pro managing complex workloads, the Azure Portal is your one-stop shop. Let’s dive into what it is, why it matters, and how you can make the most of it in 2025. What is the Azure Portal? The Azure Portal is an online, browser-based management platform provided by Microsoft Azure. Think of it as a control center where you can create, manage, and monitor all your Azure resources—vir...