Troubleshooting for CompTIA Network+ (N10-006)

This course is the fifth in a series of six courses to prepare the student for the CompTIA Network+ N10-006 exam. Here we will venture into troubleshooting network problems, including a discussion of an approach to problem solving as well as live demonstrations of troubleshooting utilities you can try on your own.
Course info
Rating
(82)
Level
Beginner
Updated
Jun 25, 2015
Duration
4h 5m
Table of contents
Introduction to Troubleshooting
Troubleshooting Cables
Troubleshooting Wireless
Troubleshooting Ethernet
Troubleshooting TCP/IP: TCP/IP Operation and IP Addressing
Troubleshooting TCP/IP: Internet Access and DNS
Troubleshooting Security
Description
Course info
Rating
(82)
Level
Beginner
Updated
Jun 25, 2015
Duration
4h 5m
Description

In this course, we will dive into using standard utilities to troubleshoot problems at all layers of the OSI model. We will walk through some of the potential issues with the physical layer (copper and fiber optics,) data link layer (Ethernet and wireless,) network layer (IP addressing and routing,) transport layer (port numbers and services,) and the application layer (protocols like HTTP and DNS.) I will also provide some tips on how to approach problem solving with the real world experience from my networking career.

About the author
About the author

For nearly 20 years, Ross has taught and managed data networks.

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Section Introduction Transcripts
Section Introduction Transcripts

Introduction to Troubleshooting
Welcome to Pluralsight. I'm Ross Bagurdes. In this video, troubleshooting for CompTIA Network Plus, we're going to introduce troubleshooting. Now troubleshooting can be an incredibly complex topic to cover and try to educate and I'll tell you this, practicing with troubleshooting is probably your best bet as to learning how to do this, but with these tips that I can give you in this course about troubleshooting, hopefully we can get you pushed in the right direction to make troubleshooting much less of a chore than it might feel in the beginning. This troubleshooting course is part of a six course series for the CompTIA Network Plus exam preparation. So far you should have been through our introduction to CompTIA Network Plus course, then Tim's course on network architecture. I covered network operations. Tim covered network security and now we're right here with troubleshooting and the last course we can finish up yet for prepping you for the net plus exam is standards, practices, and theory, which my buddy Tim is covering. Let's go through what we're going to talk about in this video. Alright, we're going to talk about some troubleshooting concepts, some troubleshooting methodology, and then documentation. Alright, we're going to start with some of the basics and see if we can point you in the right direction and then through the rest of the video I really want to use some examples and look at equipment and do some demonstrations about how we can use these troubleshooting steps versus looking at some slideshows about how to use them. So let's dive in here and take a look.

Troubleshooting Cables
Welcome to Pluralsight, I'm Ross Bagurdes. In this video we're going to look at troubleshooting cables. This module is part of a six part learning path to prepare you for the CompTIA Network+ exam. This is the N10-006 exam. We have our introduction to CompTIA Network+ followed by Network Architecture, Network Operations, Network Security, Troubleshooting, which we're currently in and Standards, Practices and Theory. Let's take a look at the overview of what we're going to cover here. I want to show you the output of a cable tester, so that we can determine what faults we might have with a cable or wiring within the wall, all right between maybe our network closet and the jack at the end user. And then I want to look at some other layer one troubleshooting tools we can use.

Troubleshooting Wireless
Welcome to Pluralsight, I'm Ross Bagurdes. In this video we're going to look at Troubleshooting Wireless. Now this module is part of a six course Learning Path designed to prepare viewers for the CompTIA Network+ exam. Now this is the N10-006 exam that came out in 2015. Now, my Buddy Tim Warner and I have been working on these videos, so that we have six videos in this series. The first one is going to be Introduction to CompTIA Network+. We're then going to dive into Network Architecture. I will take you through Network Operations. And Network Security is a course that Tim built. And Troubleshooting, that's the one that we're currently in. And then last, Tim is going to wrap up these six courses with Standards, Practices and Theory. Let's dive into an overview of what we're going to look at with Troubleshooting Wireless. We're going to first look at some wireless client issues. And I'm not so concerned about the issues, but I'm more concerned about what parameters do we need to have configured correctly in order for our wireless connection to work? So we'll look at what those parameters are so that we can use that correct config to identify an incorrect config. There might be some physical or environmental issues that we have. We'll talk about what some of those are. Last we'll look at some configuration, or equipment issues, that we may have and how we might go about troubleshooting that. Last, I'm going to take you through a really cool demo using a spectrum analyzer. This is a relatively inexpensive spectrum analyzer, but it gives us a really good idea of what's happening on a wireless network.

Troubleshooting TCP/IP: TCP/IP Operation and IP Addressing
Welcome to Pluralsight, I'm Ross Bagurdes. In this video, we're going to do some troubleshooting of TCP/IP. I broke this up into two sections to make it a little more manageable. Part one, we're going to cover TCP/IP operation and IP addressing. Now this module is part of the Troubleshooting course, all right, and that course is part of a six-course learning path to prepare you for the CompTIA Network+ N10-006 exam, all right? There are six courses in this series. We have Introduction to CompTIA Network+; we have Network Architecture; we have Network Operations; Network Security; Troubleshooting, which is this course; and Standards, Practices, and Theory. Let's go through an overview of what we're going to cover in this module. I'm going to start with basic TCP/IP network operation. Now it's real important that you understand how your computer retrieves something as simple as a website from google. com, all right? So I'll go through all of these steps involved in retrieving that website from your workstation to Google. Then I want to go into IP address misconfiguration. There are several ways that our IP addresses can get misconfigured. I want to show you where we can look for this and how we might deal with it. Last, DHCP server issues may be rare in most network environments. However, when they happen, they affect large numbers of users at a time, so we're going to take a look at some possible DHCP server issues and see how we might deal with those.

Troubleshooting TCP/IP: Internet Access and DNS
Welcome to Pluralsight. I'm Ross Bagurdes. In this video, troubleshooting TCP/IP, we're going to take a look at part two and investigate internet access issues and DNS issues. Now this module is part of a bigger learning path, right? It's part of troubleshooting course, but that troubleshooting course is part of a six course learning path, so you can get the education you need to earn your CompTIA Network+ Certification. We start with an introduction to CompTIA Network+, we move into network architecture then on to network operations, network security, troubleshooting, which is where we're at right now and then we last end with standards, practices and theory. Let's dive into this module. Here we're going to take a look at internet access issues we might have and some utilities we can use to try to solve those, as well as some DNS issues we might run into. So, let's jump in to these two scenarios and examine this a little bit deeper.

Troubleshooting Security
Welcome to Pluralsight, I'm Ross Bagurdes. In this module, we're going to look at troubleshooting security. Now this module is part of the Troubleshooting course. And that Troubleshooting course is part of a six-part series of courses that are designed as the learning path for the CompTIA Network+ (N10-006) exam. Alright, this is the exam that came out in 2015. We start off with introduction to CompTIA Network+, we then move into network architecture, my good buddy Tim Warner does that. Then I'll present to you the network operations. We have network security. Troubleshooting, which is what we're on right now. And then Tim will wrap up with standards, practices, and theory. Let's jump into this last module of our Troubleshooting course. So something we haven't looked at in incredible detail yet is in troubleshooting security issues. Now, the intention of the Network+ preparation is not to make you a security professional. However, what we do need to know is some things to look for and what we might do to prevent future security issues. Alright? So we're going to look at some basics of some security issues that create network connectivity issues, as well as some other security issues where we might be under attack from some foreign software or some foreign person. Then I'm going to follow up and end with other troubleshooting issues, alright? There was a couple pieces here that just didn't fit in anywhere else, so I'm going to wrap up by covering a couple other troubleshooting issues here.