The Eighth Layer

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....

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. Wheth...

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 cl...

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...

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 prepari...

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...

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 priorit...

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 efficie...

Ethernet isn’t just a single technology—it’s a family of standards that have grown to meet the world’s demand for faster, more reliable networks. In this episode, we explore how Ethernet has evolved from 10BASE-T to Fast Ethernet, Gigabit Ethernet, and beyond , reaching speeds of 40 and 100 Gigabits per second. You’ll learn about the role of the IEEE 802.3 committee , the naming conventions behind...

Ethernet is the backbone of modern networking, and in this episode we unpack the fundamentals that every Network+ candidate must know. We’ll explore how Ethernet evolved, what makes it the most widely used networking technology, and how its standards shape speed and reliability. You’ll learn about MAC addresses and their role in uniquely identifying devices, the Ethernet frame structure , and how...

Cables and topologies form the backbone of every network. In this episode, we break down the essential physical media— coaxial, twisted pair, and fiber optic —and explain where and why each is used. You’ll also learn about connectors like RJ-45, LC, SC, and ST, plus fire ratings such as plenum, riser, and PVC that keep networks both functional and safe. From there, we explore the topologies that s...

Every network, no matter how complex, rests on a model that explains how data moves from one device to another. In this episode, we explore the essential frameworks of networking: the OSI seven-layer model and the TCP/IP model . You’ll learn how each layer—from physical cabling to application services—plays a distinct role, and why these models are indispensable for troubleshooting, designing, and...

In this episode, we dive into the world of CompTIA Network+ certification and explore why it’s considered the ultimate starting point for anyone pursuing a career in networking. You’ll learn how the certification provides a solid foundation across LANs, WANs, the Internet, cabling, and security while offering clear pathways into advanced IT certifications. We’ll break down the exam’s structure—fiv...

On continuing education and career development for salesforce administration

Preparing for the Salesforce Administration Exam

About Salesforce's Sales Cloud

About Salesforce's Service Cloud

About the AppExchange and Custom Applications in Salesforce

Reports and Dashboards in Salesforce

Automation Tools in Salesforce

User Management and Security in Salesforce

About Objects in Salesforce

Using lightning experience in Salesforce

Getting to Know Data Management

About Salesforce Architecture