Free online course CompTIA Network N10-009 Complete Training and Exam Prep Course
Duration of the online course: 12 hours and 54 minutes
New
Build job-ready networking skills with this free course—cloud design, IP, routing, wireless, security and troubleshooting—with exam prep and a certificate-ready finish.
Become confident in modern networking by learning how real networks are designed, secured, and supported across on‑prem and cloud environments. This free online course is built to help you develop practical, exam-aligned skills you can apply to entry-level IT roles and day-to-day network operations. If you have ever felt overwhelmed by layers, protocols, subnets, or troubleshooting, you will leave with a clearer mental model and a methodical approach you can reuse on any network.
You will strengthen core fundamentals, from the OSI model and common devices to TCP/IP behavior, ports, and essential services that keep businesses running. Along the way, you will gain confidence with addressing and subnetting, including how to think through masks, hosts, and practical network sizing decisions without guesswork. The course also bridges classic networking with today’s realities: cloud connectivity, virtualized networking concepts, and software-defined approaches that influence how enterprises build scalable infrastructure.
Security is treated as part of networking rather than an afterthought. You will connect ideas such as segmentation, authentication concepts, wireless protection, and safe operational practices, while also learning to recognize common attack patterns and misconfigurations that cause real incidents. Just as importantly, you will practice troubleshooting as a disciplined process: interpreting symptoms, validating assumptions, and using common tools and command-line workflows to isolate issues in cabling, interfaces, switching, routing, Wi‑Fi, and performance.
Designed for exam preparation as well as practical growth, this training uses knowledge checks to reinforce decision-making under pressure, similar to what you face in technical interviews, on the job, and during certification testing. By the end, you will be prepared to speak the language of networking with clarity, navigate cloud and enterprise scenarios with more confidence, and take the next step toward a certificate or a stronger IT résumé.
Course content
Video class: How to Pass Your CompTIA N10-009 Network Exam07m
Exercise: Which domain has the largest percentage weighting on the CompTIA Network+ N10-009 exam?
Video class: Understanding the OSI Model - CompTIA Network N10-009 - 1.113m
Video class: Networking Devices - CompTIA Network N10-009 - 1.214m
Exercise: Which device is considered an OSI Layer 3 device because it routes traffic between different IP subnets?
Video class: Networking Functions - CompTIA Network N10-009 - 1.213m
Video class: Designing the Cloud - CompTIA Network N10-009 - 1.309m
Exercise: In a cloud environment, what component is commonly used to connect multiple separate Virtual Private Clouds (VPCs) so they can communicate with each other?
Video class: Cloud Models - CompTIA Network N10-009 - 1.305m
Video class: Introduction to IP - CompTIA Network N10-009 - 1.414m
Exercise: Which statement best describes how TCP differs from UDP at the transport layer?
Video class: Common Ports - CompTIA Network N10-009 - 1.420m
Video class: Other Useful Protocols - CompTIA Network N10-009 - 1.408m
Exercise: Which protocol is most commonly used by the ping command to check if a device is reachable and operating on a network?
Video class: Network Communication - CompTIA Network N10-009 - 1.403m
Video class: Wireless Networking - CompTIA Network N10-009 - 1.506m
Exercise: Which organization tests devices and allows them to display the Wi‑Fi trademark logo to ensure interoperability with IEEE 802.11 standards?
Video class: Ethernet Standards - CompTIA Network N10-009 - 1.504m
Video class: Optical Fiber - CompTIA Network N10-009 - 1.503m
Exercise: Which fiber type is commonly used for relatively short-range links (up to ~2 km) and often uses an LED light source?
Video class: Copper Cabling - CompTIA Network N10-009 - 1.507m
Video class: Network Transceivers - CompTIA Network N10-009 - 1.504m
Exercise: Which transceiver type is commonly associated with Gigabit Ethernet (1 Gbps)?
Video class: Fiber Connectors - CompTIA Network N10-009 - 1.503m
Video class: Copper Connectors - CompTIA Network N10-009 - 1.503m
Exercise: Which connector is an eight-position connector with eight conductors used for Ethernet connections?
Video class: Network Topologies - CompTIA Network N10-009 - 1.604m
Video class: Network Architectures - CompTIA Network N10-009 - 1.604m
Exercise: In a three-tier enterprise network design, which layer typically contains the servers, databases, and other critical resources?
Video class: Binary Math - CompTIA Network N10-009 - 1.709m
Video class: IPv4 Addressing - CompTIA Network N10-009 - 1.711m
Exercise: Which IPv4 range is defined by RFC 1918 as a private IP address block?
Video class: Classful Subnetting - CompTIA Network N10-009 - 1.710m
Exercise: What decimal subnet mask corresponds to the CIDR notation /24?
Video class: Calculating IPv4 Subnets and Hosts - CompTIA Network N10-009 - 1.709m
Video class: Magic Number Subnetting - CompTIA Network N10-009 - 1.721m
Exercise: You need to subnet 192.168.1.0/24 into multiple subnets that can support at least 40 devices per subnet. Which subnet mask (CIDR) is the best fit?
Video class: Seven Second Subnetting - CompTIA Network N10-009 - 1.717m
Video class: Software Defined Networking - CompTIA Network N10-009 - 1.806m
Exercise: Which SD-WAN characteristic allows remote devices to automatically update when cloud service locations change, without user intervention?
Video class: Virtual Extensible LAN - CompTIA Network N10-009 - 1.805m
Video class: Zero Trust - CompTIA Network N10-009 - 1.806m
Exercise: Which statement best describes a zero trust security approach?
Video class: Infrastructure as Code - CompTIA Network N10-009 - 1.808m
Video class: IPv6 Addressing - CompTIA Network N10-009 - 1.813m
Exercise: Which migration method allows an IPv6-only client to communicate with an IPv4-only server by using a translation router and a specialized DNS service?
Video class: Static Routing - CompTIA Network N10-009 - 2.107m
Video class: Dynamic Routing - CompTIA Network N10-009 - 2.109m
Exercise: What is a key advantage of dynamic routing compared to static routing?
Video class: Routing Technologies - CompTIA Network N10-009 - 2.116m
Exercise: What is the primary advantage of NAT overload (PAT) compared to standard NAT?
Video class: VLANs and Trunking - CompTIA Network N10-009 - 2.212m
Video class: Interface Configurations - CompTIA Network N10-009 - 2.206m
Exercise: A switch-to-switch connection is running but has very poor performance under load. Speed settings match, but one side is set to half duplex and the other to full duplex. What is the most likely issue?
Video class: Spanning Tree Protocol - CompTIA Network N10-009 - 2.206m
Video class: Wireless Technologies - CompTIA Network N10-009 - 2.308m
Exercise: What feature allows a wireless access point to automatically choose channels that avoid conflicts with other networks and change channels when the environment changes?
Video class: Wireless Networking - CompTIA Network N10-009 - 2.311m
Video class: Network Types - CompTIA Network N10-009 - 2.304m
Exercise: Which wireless network type uses a centralized access point that all wireless devices connect to?
Video class: Wireless Encryption - CompTIA Network N10-009 - 2.303m
Video class: Installing Networks - CompTIA Network N10-009 - 2.411m
Exercise: What is the primary purpose of a Main Distribution Frame (MDF) in a network facility?
Video class: Power - CompTIA Network N10-009 - 2.407m
Video class: Environmental Factors - CompTIA Network N10-009 - 2.403m
Video class: Network Documentation - CompTIA Network N10-009 - 3.110m
Video class: Life Cycle Management - CompTIA Network N10-009 - 3.108m
Exercise: Which lifecycle stage is the biggest security concern because the product will never receive another security update?
Video class: Configuration Management - CompTIA Network N10-009 - 3.105m
Video class: SNMP - CompTIA Network N10-009 - 3.208m
Exercise: Which SNMP version provides encryption along with message integrity and authentication?
Video class: Logs and Monitoring - CompTIA Network N10-009 - 3.213m
Video class: Network Solutions - CompTIA Network N10-009 - 3.206m
Exercise: Which protocol is commonly used to gather device performance statistics such as utilization and errors during troubleshooting?
Video class: Disaster Recovery - CompTIA Network N10-009 - 3.312m
Video class: Network Redundancy - CompTIA Network N10-009 - 3.304m
Exercise: In an active-passive redundancy design for firewalls, what must be kept synchronized so the passive device can take over immediately?
Video class: DHCP - CompTIA Network N10-009 - 3.408m
Video class: Configuring DHCP - CompTIA Network N10-009 - 3.410m
Exercise: Which DHCP feature ensures a specific device always receives the same IP address based on its MAC address?
Video class: IPv6 and SLAAC - CompTIA Network N10-009 - 3.404m
Video class: An Overview of DNS - CompTIA Network N10-009 - 3.416m
Exercise: Which DNS feature uses digital signatures to verify that DNS responses are authentic and have not been modified in transit?
Video class: DNS Records - CompTIA Network N10-009 - 3.409m
Video class: Time Protocols - CompTIA Network N10-009 - 3.405m
Exercise: Which UDP port does an NTP server listen on for time synchronization requests?
Video class: VPNs - CompTIA Network N10-009 - 3.506m
Video class: Remote Access - CompTIA Network N10-009 - 3.507m
Exercise: Which protocol is the best practice for encrypted remote terminal access to a network device, and what TCP port does it use?
Video class: Security Concepts - CompTIA Network N10-009 - 4.113m
Video class: Authentication - CompTIA Network N10-009 - 4.112m
Exercise: In the AAA framework, which function is responsible for tracking logins, logouts, and failed authentication attempts?
Video class: Security Technologies - CompTIA Network N10-009 - 4.107m
Video class: Regulatory Compliance - CompTIA Network N10-009 - 4.104m
Exercise: Which statement best describes PCI DSS?
Video class: Segmentation Enforcement - CompTIA Network N10-009 - 4.106m
Video class: Denial of Service - CompTIA Network N10-009 - 4.206m
Exercise: Which scenario BEST describes a distributed denial-of-service (DDoS) reflection and amplification attack using DNS?
Video class: VLAN Hopping - CompTIA Network N10-009 - 4.206m
Video class: MAC Flooding - CompTIA Network N10-009 - 4.208m
Exercise: What is the primary goal of a MAC flooding attack on an Ethernet switch?
Video class: ARP and DNS Poisoning - CompTIA Network N10-009 - 4.207m
Video class: Rogue Services - CompTIA Network N10-009 - 4.206m
Exercise: Which enterprise switch feature helps prevent a rogue DHCP server from responding to client DHCP requests?
Video class: Social Engineering - CompTIA Network N10-009 - 4.210m
Video class: Malware - CompTIA Network N10-009 - 4.206m
Exercise: What type of malware can replicate itself from one computer to another without any human intervention?
Video class: Device Security - CompTIA Network N10-009 - 4.309m
Video class: Security Rules - CompTIA Network N10-009 - 4.310m
Exercise: On most firewalls, what happens to traffic that does not match any rule in the rule base?
Video class: Cable Issues - CompTIA Network N10-009 - 5.214m
Exercise: What is the key behavioral difference between multimode fiber and single-mode fiber?
Video class: Interface Issues - CompTIA Network N10-009 - 5.209m
Video class: Hardware Issues - CompTIA Network N10-009 - 5.207m
Exercise: A network uses a non-PoE switch but needs to power a PoE camera over the Ethernet cable. What device would be placed between the switch and the camera to add power onto the cable?
Video class: Switching Issues - CompTIA Network N10-009 - 5.309m
Video class: Routing and IP Issues - CompTIA Network N10-009 - 5.309m
Exercise: What is the purpose of configuring a router's gateway of last resort (default route)?
Video class: Performance Issues - CompTIA Network N10-009 - 5.407m
Video class: Wireless Issues - CompTIA Network N10-009 - 5.409m
Exercise: In a busy 2.4 GHz Wi-Fi environment in North America, which channel choice avoids overlapping with existing networks on channels 6 and 11?
Video class: Software Tools - CompTIA Network N10-009 - 5.507m
Video class: Command Line Tools - CompTIA Network N10-009 - 5.517m
Exercise: Which command maps the path (hops/routers) between your device and a destination host?
Video class: Hardware Tools - CompTIA Network N10-009 - 5.508m
