Troubleshooting Issues on My Device
Learn the structured troubleshooting process for common device performance and connectivity issues, including how to diagnose CPU, RAM, storage, wireless, and overheating problems.
Sub-tag — Networking
AP Networking tutorials and practice pages
This collection covers the networking and device management concepts from the AP Networking course. Each topic pairs a tutorial with a practice page designed to build the reasoning skills tested in the AP exam.
Topics are organized by unit and topic number so you can move through the course in order or jump directly to a concept you need to review.
Unit 1
Unit 1 — Managing Individual Connections
Connecting and Optimizing My Device
Learn how to connect devices to wireless networks, verify connectivity, and improve performance through bandwidth management, signal strength, and device optimization techniques.
Identifying Security Needs of My Device
Learn to identify digital and physical attacks, understand the harms caused by security breaches, and select the appropriate security controls for common threats including phishing, shoulder surfing, and malware.
Securing My Device
Learn how to secure personal devices using strong passwords and passphrases, anti-phishing habits, VPN and HTTPS, software updates, and wireless encryption standards including WPA3 and WPA2.
Unit 2
Unit 2 — Managing a Small Network
Troubleshooting My SOHO Network
Learn how to identify likely root causes of small office/home office network issues using diagnostic tools including indicator lights, ping, and ipconfig.
Documenting My Network
Learn how MAC addresses and IP addresses are structured and used to identify devices on a network, including hexadecimal notation, OUI fields, CAM tables, and the difference between nodes and hosts.
Upgrading My Network
Learn how to select appropriate endpoint devices and transmission media for a SOHO network, and when to use dynamic versus static IP addressing.
Advanced Features on My Network
Learn how to evaluate AI-generated SOHO network recommendations and how to configure a local media server for file sharing, streaming, and gaming.
Identifying Security Needs
Understand the security vulnerabilities that affect SOHO networks — including weak passwords, default configurations, and outdated firmware — and the controls that mitigate each of them.
Securing My Network
Learn how firewalls and network segmentation protect a SOHO network, and how to group devices into appropriate segments based on role, risk level, performance needs, and user type.
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Unit 3
Unit 3 — Managing Many Connections
Planning a Network
Learn how to select the right endpoint devices and determine appropriate wired and wireless connections for a segmented network based on user role and performance requirements.
Creating a Network: Switching and Topologies
Learn how data travel through segmented networks, when to use VLANs, subnetting, or physical segmentation, and how to choose between star, mesh, and hybrid network topologies.
Connecting, Configuring, and Verifying Access
Learn how to configure static and DHCP IP addresses, determine whether devices are on the same network, build and configure a LAN, and set up a wireless access point with guest and internal networks.
Building the Boundaries: Segmentation Security
Learn how to identify security threats in segmented LANs, apply security controls including MAC filtering and DHCP reservations, and configure subnets to isolate network segments.
Controlling the Traffic: Firewalls and Filtering
Learn how MAC filtering prevents unauthorized switch access and MAC flooding, when to choose stateless, stateful, NGFW, perimeter, internal, or host-based firewalls, and how to configure and order ACL rules.
Documenting, Diagnosing, and Fixing a Segmented LAN
Learn how to document a segmented network, identify root causes of common LAN issues including APIPA addresses, gateway misconfigurations, and firewall blocks, and apply the correct solutions.
Unit 4
Unit 4 — Managing Our Global Connections
What Happens When Networks Break or Fail?
Understand the CIA triad, how to identify evidence of compromised confidentiality, integrity, and availability, and the organizational impacts of unreliable network connectivity.
The Language of the Network — Protocols and the OSI and TCP/IP Models
Learn how common network protocols work, how the OSI and TCP/IP models organize network communication, and how to use these models as a framework for structured troubleshooting.
Tools of Network Analysts — Using the CLI
Learn how to navigate computer systems using the command-line interface, understand Linux and Windows path structures, use common navigation commands, and securely transfer files with SFTP.
How Data Travel the Internet — Routing, Metrics, and Paths
Learn how data move between networks using default gateways, NAT, routing tables, dynamic routing protocols, and traceroute to trace paths and identify delays.
From the Inside Out — Monitoring and Defending a Large Network
Learn how to identify threats and vulnerabilities in managed networks, apply appropriate security controls, interpret IDS and IPS logs, and configure and verify VLANs.
Moving Forward — Designing for Reliability and Growth
Understand how IPv6 addresses support modern networks, learn IPv6 address structure and compression, and explore redundancy strategies, monitoring, and patch management to improve network reliability.
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