ONLC BLOG Your Guide to Tech Skills & Certifications

Best AI Agents and How to Use Them in Your Workflow
AI

AI agents have moved past the experimental phase. Microsoft reported in its 2026 Work Trend Index that the number of active agents across the Microsoft 365 ecosystem grew 15x year over year. Meanwhile, McKinsey found that nearly two-thirds of enterprises worldwide have experimented with AI agents, but fewer than 10% have scaled them to deliver […]

Microsoft Excel

Finance teams do not use Excel like everyone else. For finance professionals, Microsoft Excel supports budgeting, forecasting, valuation models, financial reporting, and the financial numbers leadership uses to make decisions. That means knowing basic functions and shortcuts is not enough. Finance work requires clean models, reliable financial data, traceable assumptions, and speed under pressure. The […]

Network+ vs. Security+: Which Should You Take First?
Network+Security+

If you are trying to enter the IT industry or build a cybersecurity career, CompTIA Network+ and CompTIA Security+ are two certifications you will encounter early. Both can strengthen your technical knowledge, improve your job prospects, and prepare you for more advanced certifications. However, they teach different essential skills and support different career goals. In […]

Power BI Training Path: Courses to Take at Every Stage
Power BI

Power BI makes business intelligence look easy. You import a spreadsheet, drag a few visuals onto a page, and within minutes, you have a polished, professional dashboard. But after those first few reports, most users run into the same obstacles…  Relationships stop working, Data Analysis Expressions (DAX) become confusing, reports slow down, and refreshes fail. […]

Security in the Age of AI: Top 8 Things You Need to Know
AI

As artificial intelligence evolves, so do the security risks and the strategies needed to defend against them. Security teams are no longer only protecting networks, endpoints, cloud platforms, and mobile devices. They also have to secure AI systems, manage training data, monitor AI models, and defend against threat actors using the same capabilities to launch […]

What Is Count Distinct in Power BI and How Do You Use It?
Power BI

If you’ve ever built a report in Power BI and wondered why your numbers seem inflated, duplicate records may be the culprit. One of the most useful ways to improve reporting accuracy is by using a distinct count rather than a standard count. Whether you’re tracking customers, products, orders, or employees, understanding how to count […]

Python vs R: Which Is Better for You?
Python

Both languages, Python and R, pack serious power, but they each shine in different areas of data work, and picking the right one can make your learning curve smoother. In this article, we’ll break down the practical differences and help you decide which language fits your goals, whether you’re crunching stats, building machine learning models, […]

Python vs Java: Key Differences Explained
JavaPython

If you’ve ever started learning to code and found yourself stuck choosing between Python and Java, you’re not alone. These two popular programming languages dominate modern software development, but they serve very different purposes. This isn’t just a technical comparison. It’s a decision about where you want to go; choosing between them can shape your […]

11 Ways to Use Microsoft Copilot in Excel
Microsoft Excel

As artificial intelligence continues to reshape how professionals work with data, tools like Copilot in Excel are redefining what’s possible inside a spreadsheet. Instead of manually building formulas, analyzing rows and columns, or creating charts, users can now rely on AI to streamline complex tasks and deliver real-time insights. With the integration of Microsoft 365 […]

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