We use the OSI model to help describe the process used when data is sent across the network. In this video, you’ll learn about the OSI models and how each layer of the model applies to real-world network communication.
Understanding the OSI Model – CompTIA Network+ N10-006 – 5.1 Read More »
Companies rely on security policies for their WAN to manage and secure traffic flows. In this video, you’ll learn about traffic blocking policies and traffic throttling technologies.
Company Security Policies – CompTIA Network+ N10-006 – 4.8 Read More »
Our customer premise equipment includes a number of troubleshooting features. In this video, you’ll learn about demarcation points, smartjacks, CSU/DSUs, and copper line drivers.
Troubleshooting Customer Premise Equipment – CompTIA Network+ N10-006 – 4.8 Read More »
WAN connections can have signal problems, routing protocol issues, and other challenges. In this video, you’ll learn about troubleshooting interface issues, latency problems, routing table issues, and more.
Troubleshooting WAN Issues – CompTIA Network+ N10-006 – 4.8 Read More »
An organization’s authentication servers are some of the most important services on the network. In this video, you’ll learn about TACACS and RADIUS misconfigurations, domain configurations, default passwords, and backdoors.
Troubleshooting Authentication Issues – CompTIA Network+ N10-006 – 4.7 Read More »
You can use a number of techniques to identify malicious users. In this video, you’ll learn about trusted and untrusted users, packet analysis, and banner grabbing.
Troubleshooting Malicious User Activities – CompTIA Network+ N10-006 – 4.7 Read More »
ICMP and ARP are two of the fundamental protocols used on our networks. In this video, you’ll learn about the “ping of death,” troubleshooting problems with an unreachable default gateway, and using ARP to troubleshoot issues.
Troubleshooting ICMP and ARP – CompTIA Network+ N10-006 – 4.7 Read More »
A denial of service can be a significant event on any network. In this video, you’ll learn about DoS events, the fundamentals of a distributed DoS, DoS on a wireless network, and the process of troubleshooting a denial of service.
Troubleshooting Denial of Service – CompTIA Network+ N10-006 – 4.7 Read More »
An operating system’s security must be constantly maintained. In this video, you’ll learn about OS patches, updates, and malware attacks.
Troubleshooting Operating System Security Issues – CompTIA Network+ N10-006 – 4.7 Read More »
A firewall is a complex device that can be easily misconfigured. In this video, you’ll learn about connectivity misconfigurations, security policy problems, and misconfigured ACLs or applications.
Troubleshooting Firewall Security Issues – CompTIA Network+ N10-006 – 4.7 Read More »
