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PODCAST

Certified - CompTIA Network + Audio Course

The Network+ Audio Course is your comprehensive audio training series for mastering the CompTIA Network+ certification. Designed for learners on the go, this Audio Course transforms exam objectives into clear, structured, and engaging episodes tailored for auditory learning. Whether you"re walking, commuting, or studying between shifts, each episode breaks down complex networking topics into digestible segments aligned with the official CompTIA blueprint. From OSI layers and IP addressing to

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All Episodes

13:05

Episode 125: Baselines and NetFlow — Measuring...

Certified - CompTIA Network + Audio Course ·

2025/07/20

A baseline is a snapshot of normal network behavior, and it’s one of the most powerful tools for detecting anomalies. This episode explores how to create, maintain, and use network baselines effectively. You’ll learn how to define what “normal” looks like in terms of bandwidth, latency, and traffic patterns, and how to detect deviations that indicate issues or intrusions.We also introduce NetFlow, a protocol developed by Cisco that collects metadata about traffic flows. We explain how to

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14:04

Episode 124: Interface Errors and Environmental...

Certified - CompTIA Network + Audio Course ·

2025/07/20

Interface errors can be the first signs of deeper problems, and in this episode, we cover the most common indicators that a link is failing. You’ll learn how to recognize and interpret error messages such as input/output drops, late collisions, CRC errors, and alignment problems. These clues can point to physical issues like bad cabling, interference, or even failing hardware components like transceivers or ports.We also examine how environmental conditions—such as temperature, humidity,

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13:38

Episode 123: Logging Essentials — Syslog, Auditing,...

Certified - CompTIA Network + Audio Course ·

2025/07/20

Logs are a goldmine of operational insight—and in this episode, we explain how to access, interpret, and act on the information they provide. You’ll learn about Syslog, the standard logging protocol used by most network devices, and how to configure Syslog levels to capture just the right amount of detail. We also discuss the role of centralized logging servers and how they support forensic analysis, trend detection, and compliance.Beyond Syslog, we examine interface statistics and event

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13:47

Episode 122: Performance Metrics, Sensors, and SNMP...

Certified - CompTIA Network + Audio Course ·

2025/07/20

Monitoring network health begins with knowing what to measure—and how. In this episode, we cover the essential performance metrics that indicate how well a network is functioning, including bandwidth usage, latency, jitter, packet loss, and error rates. You’ll learn what thresholds are considered acceptable and how performance metrics help predict or detect problems before users notice.We also introduce SNMP (Simple Network Management Protocol) and how it enables communication between

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14:06

Episode 121: Welcome to Domain 3 — Network Operations

Certified - CompTIA Network + Audio Course ·

2025/07/20

In Domain 3, we shift focus from implementation to operation, diving into what it takes to maintain, monitor, and document a functional network. This episode provides an overview of what you’ll encounter throughout the domain, including topics like network performance metrics, configuration management, change control processes, and incident response. Unlike the theoretical planning of earlier domains, this one reflects the day-to-day tasks of a working network technician.You’ll also be

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14:42

Episode 120: MIMO and MU-MIMO — Multiplying Wireless...

Certified - CompTIA Network + Audio Course ·

2025/07/20

Multiple-Input, Multiple-Output (MIMO) is one of the most powerful features in modern wireless communication, dramatically increasing speed and efficiency. In this episode, we explain how MIMO works by allowing multiple data streams to be sent and received simultaneously using multiple antennas. You'll learn about spatial streams, signal reflection, and how beamforming targets specific devices to improve range and performance.We also discuss MU-MIMO (Multi-User MIMO), which enables routers

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13:49

Episode 119: Cellular Technologies — Connecting...

Certified - CompTIA Network + Audio Course ·

2025/07/20

Cellular networks offer wide-area coverage and are vital for connecting mobile devices and remote locations to the internet. In this episode, we walk through the evolution of cellular technology from 3G to 4G LTE and the newest 5G deployments. You’ll learn the differences in speed, latency, and frequency band usage across each generation, and how they impact performance in different environments.We also explore cellular architecture, including SIM authentication, mobile device handoff, and

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14:31

Episode 118: Securing Wi-Fi — Encryption Standards...

Certified - CompTIA Network + Audio Course ·

2025/07/20

Wireless networks require more than just a strong signal—they also demand strong security. In this episode, we explore the evolution of wireless encryption, from outdated protocols like WEP to modern standards like WPA2 and WPA3. You'll learn how each encryption method works, what vulnerabilities exist, and why pre-shared keys are appropriate in some environments but not in others.We also cover enterprise-grade wireless security, including 802.1X authentication, RADIUS integration, and

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14:32

Episode 117: Wi-Fi Topologies, SSIDs, and Antenna Types

Certified - CompTIA Network + Audio Course ·

2025/07/20

Wireless networks can be built in several topologies, and choosing the right one affects everything from coverage to scalability. In this episode, we compare ad hoc and infrastructure mode, explain what an SSID is and how it’s broadcasted, and examine the use of multiple SSIDs in multi-tenant or enterprise environments. You'll also learn about wireless isolation, SSID hiding, and service set types like BSS, ESS, and IBSS.We then turn to antennas—omnidirectional vs. directional, gain

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14:41

Episode 116: Wireless Frequencies, Channels, and...

Certified - CompTIA Network + Audio Course ·

2025/07/20

Wireless networks are built on radio frequencies, and how you manage those frequencies has a massive impact on performance and reliability. This episode covers the 2.4 GHz and 5 GHz frequency bands, channel availability, and how channel overlap can cause interference and performance degradation. We explain how to choose non-overlapping channels in dense environments and how tools like Wi-Fi analyzers help you visualize spectrum usage.We also cover channel bonding, bandwidth allocation, and

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14:29

Episode 115: 802.11 Wireless Standards — From a to ax

Certified - CompTIA Network + Audio Course ·

2025/07/20

Wireless networking continues to evolve rapidly, and understanding the 802.11 family of standards is essential for modern network support. In this episode, we walk through the progression from 802.11a and 802.11b all the way to today’s high-speed 802.11ax (Wi-Fi 6). You'll learn which frequency bands each standard uses, what modulation types they employ, and the maximum data rates supported in typical environments.We also explain backward compatibility between standards, channel widths, and

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15:22

Episode 114: CSMA/CD, ARP, and Neighbor Discovery

Certified - CompTIA Network + Audio Course ·

2025/07/20

Legacy and modern protocols alike underpin communication within local networks, and this episode brings together three foundational ones: CSMA/CD, ARP, and Neighbor Discovery. We begin with CSMA/CD, once crucial in shared Ethernet environments, explaining how devices listened before transmitting and how collisions were handled. Although largely obsolete due to switched networks, CSMA/CD still appears on the exam and helps illustrate Ethernet history.We then shift to ARP (Address Resolution

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14:50

Episode 113: Spanning Tree Protocol — Loop Prevention...

Certified - CompTIA Network + Audio Course ·

2025/07/20

Spanning Tree Protocol (STP) is critical for preventing Layer 2 loops that can crash entire networks. In this episode, we explain how STP operates by detecting redundant paths and placing specific ports in a blocking state. You'll learn about key concepts like the root bridge, bridge ID, port roles (root, designated, and blocked), and the election process that determines which paths remain active.We also cover Rapid STP (RSTP) and its faster convergence benefits, as well as configuration

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15:48

Episode 112: Power over Ethernet (PoE and PoE+)

Certified - CompTIA Network + Audio Course ·

2025/07/20

Power over Ethernet (PoE) allows devices like access points, VoIP phones, and security cameras to receive power and data over a single Ethernet cable. In this episode, we explain how PoE and PoE+ work, including power classifications, standards like IEEE 802.3af and 802.3at, and how switches negotiate power with connected devices. You’ll learn how this technology simplifies installations by removing the need for separate power cables and outlets.We also explore power budgets, device

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13:10

Episode 111: MAC Address Tables — How Switches Learn

Certified - CompTIA Network + Audio Course ·

2025/07/20

Switches rely on MAC address tables to decide where to forward frames, and this episode walks you through exactly how these tables are built and maintained. You'll learn how switches learn the source MAC address of each incoming frame and associate it with the port that received it. This learning process allows switches to make intelligent forwarding decisions, sending frames only to the appropriate destination port rather than flooding the network.We also cover how MAC address tables age

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14:09

Episode 110: Jumbo Frames and Auto-MDI-X — Optimizing...

Certified - CompTIA Network + Audio Course ·

2025/07/20

Optimizing data transmission isn’t just about bandwidth—it also involves tuning frame size and port behavior. This episode explores jumbo frames, which are Ethernet frames larger than the standard 1500 bytes. You’ll learn how jumbo frames reduce overhead and improve efficiency for large data transfers such as backups or SAN replication. We also explain compatibility concerns, how to enable jumbo frames, and what happens if mismatched frame sizes occur between devices.The second half of the

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14:52

Episode 109: Port Security — Limiting Access at the...

Certified - CompTIA Network + Audio Course ·

2025/07/20

Port security helps prevent unauthorized devices from connecting to your network by enforcing MAC address restrictions at the switch port level. In this episode, we cover how port security works, how to configure it on managed switches, and what actions can be taken when violations occur. You’ll learn about sticky MAC addresses, violation modes (protect, restrict, shutdown), and how to monitor security events.We also discuss use cases such as securing office wall jacks, restricting guest

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14:08

Episode 108: Port Configuration and Mirroring Essentials

Certified - CompTIA Network + Audio Course ·

2025/07/20

Switch ports are the front line of network configuration and monitoring, and this episode walks through the most essential port settings. You'll learn how to assign ports to VLANs, configure speed and duplex, enable or disable ports, and label interfaces for better documentation. We also review the significance of auto-negotiation, port status LEDs, and default behaviors that can lead to communication failures when improperly configured.The second half of the episode covers port mirroring

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13:59

Episode 107: Port Aggregation with LACP

Certified - CompTIA Network + Audio Course ·

2025/07/20

When a single link isn’t enough to handle bandwidth demands or redundancy requirements, port aggregation offers a scalable solution. In this episode, we explain how LACP (Link Aggregation Control Protocol) is used to combine multiple physical interfaces into one logical link known as a port channel or EtherChannel. You’ll learn how LACP negotiates aggregation, prevents loops, and distributes traffic across links based on load-balancing algorithms.We cover the difference between static and

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14:31

Episode 106: Port Tagging and 802.1Q — Trunks and...

Certified - CompTIA Network + Audio Course ·

2025/07/20

VLANs are powerful, but they require the right tagging protocol to work across multiple switches—and that’s where 802.1Q comes in. This episode explains how trunk ports carry traffic from multiple VLANs using VLAN tags inserted into Ethernet frames. You’ll learn how access ports differ from trunk ports, and why configuring native VLANs is important to avoid untagged traffic conflicts and security issues.We also discuss Dynamic Trunking Protocol (DTP), the risks it poses, and why disabling

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185 results

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