All Episodes
Displaying 81 - 100 of 185 in total
Episode 81: Cloud Connectivity — VPN and Private Links
This episode explains how organizations connect securely to cloud environments using Virtual Private Networks (VPNs) and private links. VPNs extend encrypted tunnels o...
Episode 82: Multitenancy — Sharing the Cloud Securely
This episode introduces the concept of multitenancy, where multiple customers share the same cloud infrastructure while maintaining logical separation. Hypervisors, co...
Episode 83: Elasticity and Scalability — Growing on Demand
This episode explores elasticity and scalability, two defining characteristics of cloud computing. Elasticity refers to the ability to automatically expand or contract...
Episode 84: Security Implications of Cloud Computing
This episode addresses the security implications of cloud computing, focusing on how responsibilities are shared between provider and customer. Topics include data pro...
Episode 85: Welcome to Domain 2 — Network Implementations
This episode introduces Domain 2 of the Network Plus exam, which covers network implementations. While Domain 1 focused on fundamentals, Domain 2 builds on that knowle...
Episode 86: Layer 2 Switches — MAC Tables and Forwarding Decisions
This episode introduces Layer 2 switches, which operate at the Data Link Layer and make forwarding decisions based on MAC addresses. Switches maintain a MAC address ta...
Episode 87: Layer 3 Switches — When a Switch Becomes a Router
This episode explains Layer 3 switches, which combine the high-speed switching of Layer 2 with the routing capabilities of Layer 3. These devices can forward packets b...
Episode 88: Routers — Path Decision Makers
This episode focuses on routers, devices that operate at the Network Layer and make path decisions based on logical addressing. Routers examine destination IP addresse...
Episode 89: Hubs and Bridges — Legacy Devices Explained
This episode introduces hubs and bridges, legacy devices that laid the foundation for modern switching. Hubs operate at Layer 1, repeating signals to all ports without...
Episode 90: Access Points and Wireless LAN Controllers
This episode explains the role of wireless access points (APs) and wireless LAN controllers (WLCs). Access points provide wireless connectivity to client devices, brid...
Episode 91: Load Balancers — Sharing the Traffic Load
This episode introduces load balancers, devices or software that distribute network or application traffic across multiple servers. By balancing requests, they prevent...
Episode 92: Proxies and VPN Gateways — Secure Remote Access
This episode explains the role of proxies and VPN gateways in securing and managing remote access. Proxies act as intermediaries between clients and external servers, ...
Episode 93: Modems, Media Converters, and Repeaters
This episode covers modems, media converters, and repeaters, three devices that operate primarily at the physical layer. Modems modulate and demodulate signals for tra...
Episode 94: Voice Gateways and VoIP Translation
This episode introduces voice gateways, devices that translate between traditional telephony systems and modern Voice over IP (VoIP). They convert circuit-switched voi...
Episode 95: IPS and IDS Devices — Detecting and Stopping Attacks
This episode explains Intrusion Detection Systems (IDS) and Intrusion Prevention Systems (IPS), which monitor network traffic for signs of malicious activity. IDS devi...
Episode 96: Firewalls — Stateful Inspection and Access Control
This episode introduces firewalls, which enforce security policies by controlling traffic entering or leaving a network. It explains the difference between packet-filt...
Episode 97: Networked Devices — VoIP Phones, Printers, and Controls
This episode explores networked devices beyond standard workstations and servers. VoIP phones, network printers, and control systems are introduced as endpoints that r...
Episode 98: IoT and SCADA Systems — Small Devices, Big Impacts
This episode examines Internet of Things (IoT) and Supervisory Control and Data Acquisition (SCADA) systems. IoT devices include sensors, cameras, and smart appliances...
Episode 99: Introduction to Routing — What It Does and Why It Matters
This episode introduces routing, the process of directing packets between networks based on destination IP addresses. Routers use routing tables to determine the best ...
Episode 100: Static Routing and Administrative Distance
This episode focuses on static routing, where administrators manually configure routes, and the concept of administrative distance, which determines the trustworthines...