The Eighth Layer

Cert Stack LLC

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Preparing for IT certifications

01/10/2025

Exam updates

In this episode of The Eighth Layer, we cover Chapter 5 of the Microsoft Azure DP-900 exam guide: Exam Updates. Cloud certifications evolve quickly, and this chapter highlights the latest changes you need to know—from adjustments in relational and non-relational database coverage, to analytics workloads, and how Microsoft continues to shape the data fundamentals exam for modern cloud realities. Stay ahead of the curve and make sure you’re preparing for the newest version of DP-900 with the right focus areas. More Azure and IT certification content is coming soon from Cert Stack.

14 min
01/10/2025

Azure Analytics Workloads

In this episode, we dive into Chapter 4 of the Microsoft Azure DP-900 certification guide: Describe an Analytics Workload on Azure. We’ll break down how Azure handles big data, batch vs. streaming workloads, and the core services that power analytics in the cloud. From Azure Synapse Analytics to Azure Data Lake, you’ll learn how these tools fit together to transform raw data into insights. Whether you’re new to data or sharpening your cloud skills, this chapter is packed with the fundamentals you need to understand how analytics workloads scale in Azure. Stay tuned—more DP-900 exam prep and certification content is coming soon from Cert Stack.

29 min
01/10/2025

Non-Relational Data

In this episode of Eighth Layer, we dive into Chapter 3 of Microsoft Azure DP-900: Non-Relational Data on Azure. From key-value stores to graph databases, we explore the flexibility, speed, and scalability of non-relational models—and why they matter in today’s cloud-driven world. Whether you’re new to Azure or sharpening your data fundamentals, this breakdown brings the concepts to life with clarity and energy. More DP-900 content is on the way from Cert Stack—stay tuned for the next layer.

18 min
01/10/2025

Relational Data on Azure

In this episode, we dive into the world of relational data and explore how Microsoft Azure brings structure, scale, and intelligence to one of the oldest pillars of computing. We’ll cover the key considerations for using Azure SQL Database, managed instances, and virtual machines, plus when to lean into relational design versus other models. Think of this as mapping the blueprints of your digital city—where data rows are buildings, schemas are neighborhoods, and Azure’s relational services keep everything running smoothly behind the scenes. This is part of our Cert Stack DP-900 series, breaking the exam into vivid, memorable chapters you won’t forget. More chapters are on the way, so subscribe and follow Cert Stack for the full journey.

23 min
01/10/2025

Core Data Concepts and Data Workloads

Welcome to The Eighth Layer, a Cert Stack series on Microsoft Azure’s DP-900 certification. In this episode, we cover Chapter 1: Core Data Concepts—breaking down the essential building blocks of data. From structured vs. unstructured data to relational and non-relational systems, this chapter sets the foundation for understanding how data powers modern cloud solutions. Perfect for anyone preparing for the DP-900 or looking to strengthen their data fundamentals. 📊 More Azure episodes are coming soon from Cert Stack—stay tuned as we continue guiding you through the exam, one chapter at a time.

15 min
01/10/2025

DP-900 Exam Reference

In this episode, we dive into the foundations of Microsoft Azure Data Fundamentals (DP-900). Instead of focusing on low-level tasks or endless code snippets, this chapter takes a high-level approach—helping you understand how data concepts connect to Azure’s cloud services. We’ll explore how the exam emphasizes strategy, big-picture thinking, and conceptual clarity over granular detail, making it accessible for IT professionals, career changers, and even non-technical learners. Whether you’re just starting your journey in data or looking to expand your cloud expertise, this episode sets the stage for mastering Azure’s data ecosystem. 📢 Stay tuned—more exam prep content is coming soon from Cert Stack!

17 min
04/09/2025

TCP-IP Basics

The internet runs on TCP/IP, and in this episode we break down its fundamental layers and how they work together. We’ll explore the four-layer model—Application, Transport, Internet, and Network Access—and explain how each plays a role in getting data from one device to another. You’ll learn about IP addressing, ports, and packets, and see how TCP ensures reliable communication while UDP prioritizes speed. We’ll also connect these concepts to real-world networking scenarios, giving you the context you need for both the Network+ exam and practical troubleshooting. By the end of this episode, you’ll understand how TCP/IP serves as the backbone of modern networking and why it’s essential knowledge for every IT professional.

1h 36min
04/09/2025

Installing a Physical Network

Designing a network is one thing—building it in the real world is another. In this episode, we walk through the essentials of installing a physical network, from planning cable runs to terminating connections with precision. You’ll learn about structured cabling systems, patch panels, punch-down blocks, and wall jacks, plus the best practices that keep a network installation reliable and efficient. We’ll also discuss safety standards, labeling, and testing procedures that ensure every connection works as expected. By the end of this episode, you’ll understand how to translate diagrams and standards into a functional network backbone—a critical skill for both the exam and hands-on IT work.

1h 28min

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Preparing for IT certifications

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