All Episodes
Displaying 61 - 90 of 184 in total
Episode 61: IPv4 Subnetting — The Process Step by Step
This second iteration of IPv4 subnetting drills deeper into practical application with a new set of examples and problem-solving approaches. You’ll practice breaking d...
Episode 62: SIP and VoIP Protocols
Voice over IP (VoIP) technology has revolutionized communications, and understanding its protocols is vital for both support and troubleshooting. This episode explains...
Episode 63: ICMP — The Network’s Messaging System
The Internet Control Message Protocol (ICMP) is one of the simplest yet most important diagnostic tools in networking. This episode explains how ICMP is used for basic...
Episode 64: TCP and UDP — The Transport Layer’s Two Engines
TCP and UDP are the backbone of transport-layer communication, and understanding how they differ is critical to troubleshooting and configuring network services. In th...
Episode 65: GRE and IPsec — Tunneling and Secure Transport
As businesses expand and remote work becomes the norm, tunneling protocols like GRE and IPsec play a critical role in securely connecting distributed networks. This ep...
Episode 66: Connection-Oriented vs. Connectionless — Making Sense of Transport Styles
Not all network communications are created equal. In this episode, we explore the fundamental differences between connection-oriented and connectionless communication....
Episode 67: DHCP Concepts and Configuration Essentials (Scope, Reservations, Relay)
Dynamic Host Configuration Protocol (DHCP) automates the IP addressing process, making network management easier and more scalable. In this episode, we walk through DH...
Episode 68: DNS Essentials — Records, Resolution, and Queries
DNS is a critical component of almost every network service, translating human-readable domain names into IP addresses that computers can use. In this episode, we take...
Episode 69: Network Time Protocol (NTP) — Keeping Clocks in Sync
Accurate timekeeping is more important in networking than it might seem, and Network Time Protocol (NTP) is the service that keeps all devices on the same page. This e...
Episode 70: Three-Tiered Architecture — Core, Distribution, and Access
Modern enterprise networks are often designed using a layered or three-tier architecture, which promotes scalability, redundancy, and modular design. In this episode, ...
Episode 71: Software-Defined Networking (SDN) Fundamentals
Software-Defined Networking (SDN) represents a shift from traditional hardware-based control to centralized, software-driven management. This episode introduces SDN by...
Episode 72: SDN in Operation — The Management Plane Explained
While SDN defines the separation of control and data planes, the management plane provides the interface for human administrators and automation tools to interact with...
Episode 73: Spine-and-Leaf Architecture — Flattening the Network
Spine-and-leaf architecture is rapidly becoming the go-to design for modern data centers due to its simplicity, scalability, and predictable performance. In this episo...
Episode 74: Spine-and-Leaf Architecture — Flattening the Network
Spine-and-leaf architecture is transforming the way data centers are designed, offering a high-performance alternative to traditional three-tier models. In this episod...
Episode 75: Understanding Network Traffic Flow — North-South vs. East-West
Traffic within a network doesn’t all behave the same way. In this episode, we explain the difference between north-south and east-west traffic flows—a concept that is ...
Episode 76: Zero Trust Network Design — Enforcing 'Never Trust, Always Verify'
Zero Trust networking is more than a buzzword—it’s a security philosophy that’s quickly becoming a best practice. This episode explores what Zero Trust really means an...
Episode 77: Storage Area Networks (SANs) — High-Speed Storage Over the Network
Storage Area Networks (SANs) are specialized networks designed to provide high-speed, block-level access to storage devices. In this episode, we explain how SANs diffe...
Episode 78: Network Attached Storage (NAS) — File-Level Storage on the Network
Network Attached Storage (NAS) provides centralized, file-level access to shared data across a network. In this episode, we dive into how NAS differs from SAN, focusin...
Episode 79: Cloud Service Models — SaaS, IaaS, PaaS, and DaaS
Cloud computing has reshaped how organizations build, deploy, and manage IT services. In this episode, we break down the different cloud service models—SaaS (Software ...
Episode 80: Infrastructure as Code — Automating the Cloud
Infrastructure as Code (IaC) is transforming how networks and systems are deployed, allowing infrastructure to be defined, managed, and provisioned using human-readabl...
Episode 81: Cloud Connectivity — VPN and Private Links
Cloud services are only useful if your network can reach them securely and efficiently. In this episode, we examine the various ways networks connect to cloud provider...
Episode 82: Multitenancy — Sharing the Cloud Securely
Multitenancy allows cloud providers to host multiple customers—known as tenants—on the same physical infrastructure while isolating each one’s data and services. In th...
Episode 83: Elasticity and Scalability — Growing on Demand
Cloud networks and virtual infrastructure platforms allow resources to grow and shrink based on demand—a concept known as elasticity. In this episode, we explore how e...
Episode 84: Troubleshooting Deeper Hardware and Optical Issues
While many network problems occur at the software or configuration level, some of the most persistent issues stem from failing hardware and physical media—especially i...
Episode 85: Welcome to Domain 2 — Network Implementations
Domain 2 of the Network Plus exam shifts focus from theory to real-world implementation—how devices are configured, deployed, and made to work together. In this episod...
Episode 86: Layer 2 Switches — MAC Tables and Forwarding Decisions
Layer 2 switches operate at the data link layer and are responsible for intelligently forwarding frames within a local network segment. In this episode, we explore how...
Episode 87: Layer 3 Switches — When a Switch Becomes a Router
Layer 3 switches bridge the gap between switching and routing by combining the frame forwarding capability of Layer 2 devices with the IP-based decision-making of rout...
Episode 88: Routers — Path Decision Makers
Routers are the decision-makers of the network, directing traffic between different IP networks and ensuring that data finds the most efficient path to its destination...
Episode 89: Hubs and Bridges — Legacy Devices Explained
While hubs and bridges are largely obsolete in modern networks, they still appear on the Network Plus exam and are worth understanding for historical context and compa...
Episode 90: Access Points and Wireless LAN Controllers
Wireless access points (APs) and Wireless LAN Controllers (WLCs) are essential to managing and scaling enterprise wireless environments. This episode begins with how s...