In this Network Troubleshooting course, you will learn to troubleshoot a network physically and logically.
In this Network Troubleshooting course, you will learn to troubleshoot a network physically and logically. You will understand how to fix common network issues and various methods of hardware issues. You will also learn what tools you can use to help you troubleshoot your network, as well as authentication methods and wireless technologies.
You will learn about effective troubleshooting methods that target individual network components to expedite network function. We will discuss various ways to troubleshoot wireless and wired technology. Uncover what could disrupt or disconnect your network, and be aware of some indicators that can give users a false impression of breaking a network.
Learning Objectives:
- Understand the OSI model and how to troubleshoot a network using it
- Recognize certificates and how they can affect your applications
- Know which tools to use for troubleshooting various issues
- Describe the differences between troubleshooting wired vs. wireless connections
Skills you’ll gain
Troubleshooting (Problem Solving)Hardware TroubleshootingNetwork DiagnosticsNetwork TestingNetwork TroubleshootingNetworking BasicsWhat You'll Learn
- Troubleshoot a network both physically and logically using effective, component-targeted methods
- Apply the OSI model along with Top Down, Bottom Up, and Divide and Conquer approaches to diagnose network issues
- Identify and resolve common physical issues such as bad cables, wrong cable type, cable distance, and low speed
- Diagnose logical and connectivity problems including incorrect IP addresses, intermittent connectivity, ARP, DNS, and routing
- Differentiate between troubleshooting wired and wireless connections, including slow speeds, authentication, and obstruction
- Use troubleshooting tools such as built-in Windows tools, Wireshark, and NetFlow, and recognize how SSL certificates affect applications
Key Takeaways
- Networks can be troubleshot both physically and logically, with effective methods targeting individual network components to expedite network function.
- The OSI model and structured approaches such as Top Down, Bottom Up, and Divide and Conquer help isolate where a network problem occurs.
- Common issues include bad cables, the wrong cable type, excessive cable distance, low speed, incorrect IP addresses, and intermittent connectivity.
- Wireless troubleshooting addresses concerns distinct from wired connections, such as slow wireless speeds, wireless authentication, and wireless obstruction.
- Certain indicators can give users a false impression that a network is broken, so being aware of them is part of effective troubleshooting.
Frequently Asked Questions
What will I learn in this Network Troubleshooting course?
You will learn to troubleshoot a network physically and logically, fix common network and hardware issues, use tools to help troubleshoot your network, and understand authentication methods and wireless technologies. The course also covers the OSI model, certificates, which tools to use, and the differences between troubleshooting wired versus wireless connections.
Does this course cover both wired and wireless troubleshooting?
Yes. The course discusses various ways to troubleshoot both wireless and wired technology, including the differences between troubleshooting wired versus wireless connections, slow wireless speeds, wireless authentication, and wireless obstruction.
What tools does the course teach for troubleshooting?
The course covers built-in Windows tools, Wireshark, and NetFlow, and helps you know which tools to use for troubleshooting various issues.
What skills will I gain from this course?
You will gain skills in troubleshooting and problem solving, hardware troubleshooting, network diagnostics, network testing, network troubleshooting, and networking basics.
What network concepts are covered for diagnosing issues?
The course covers the OSI model, structured methods like Top Down, Bottom Up, and Divide and Conquer, physical and logical network issues, IP addressing, intermittent connectivity, route path, Address Resolution Protocol, drivers and network interface cards, DNS, SSL certificates, and security.
Transcript
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Hello, my name is Matt Mercaldi. And today I will be your instructor for the Network Troubleshooting class with Knowledge City. A little bit about myself, I am a network engineer. I've been one for the past seven years. I've been in IT though, for the past 17 years. Started off doing junior system administration work and worked my way to Jack-of-all-trades system administration with various companies, MSPs, labs, and financial organizations, and currently have been a network engineer for two companies for the past seven years. In these lessons, we will be going over different ways to troubleshooting your network. Some of the approaches will be pertaining to the OSI model, we'll be learning how to identify common network issues, and that's include both the physical and logical layer, we'll be also learning how to troubleshoot desktop and wireless connectivity issues, whether it be low speeds, no connectivity at all, or the variety of different ways to authenticate your wireless connection. We'll be learning some basic ways to troubleshoot your network hardware, and which, pertaining to why your PC or laptop, may or may not have connectivity at all, or connectivity to certain other devices. We'll be learning very generic ways on how to troubleshoot a web application as well. And we'll be learning how to use built-in and third party tools to troubleshoot your network. I hope this class is informative and look forward to teaching you.
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