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CompTIA Network+ N10-004: 5.2 – Network Scanners

CompTIA Network+ N10-004: 5.2 – Network Scanners

| August 16, 2009 | 1 Comment

The network is a constantly moving river of information, and it may be necessary to occasionally test the water as it flows by. In this video module, you’ll learn the reasons for scanning your network and the different technologies available to gather information. We’ll also dive into packet analyzers, intrusion detection systems, intrusion prevention systems, and port scanners.

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CompTIA Network+ N10-004: 5.1 – Command Line Tools

CompTIA Network+ N10-004: 5.1 – Command Line Tools

| August 15, 2009 | 0 Comments

Many of the most powerful network troubleshooting tools can be found at the command line of your operating system. In this video, you’ll learn the importance of command line tools such as traceroute, ipconfig, ifconfig, ping, arping, nslookup, dig, mtr, route, nbtstat, and netstat.

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CompTIA Network+ N10-004: 4.7 – Troubleshooting Wireless Issues

CompTIA Network+ N10-004: 4.7 – Troubleshooting Wireless Issues

| August 15, 2009 | 0 Comments

The lack of a physical infrastructure can make troubleshooting a wireless network a bit more complex than traditional wired networks. In this video, you’ll learn how to troubleshoot some of the most common wireless network issues, such as interference, encryption mismatches, frequency problems, bounce, and antenna placement.

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CompTIA Network+ N10-004: 4.7 – Identifying Issues for Escalation

CompTIA Network+ N10-004: 4.7 – Identifying Issues for Escalation

| August 15, 2009 | 0 Comments

Some network problems take a village. In this module, you’ll learn how to identify major network issues that will require an escalation to additional members of your team including switching loops, routing loops, route problems, proxy ARP configurations, and broadcast storms.

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CompTIA Network+ N10-004: 4.7 – Troubleshooting Common Logical Connectivity Issues

CompTIA Network+ N10-004: 4.7 – Troubleshooting Common Logical Connectivity Issues

| August 8, 2009 | 3 Comments

Often, some of our most irritating network problems are related to logical configuration settings. In this module, you’ll learn how to check port speed, duplex, VLAN configurations, DNS settings, and much more.

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CompTIA Network+ N10-004: 4.7 – Troubleshooting Common Physical Connectivity Issues

CompTIA Network+ N10-004: 4.7 – Troubleshooting Common Physical Connectivity Issues

| August 8, 2009 | 1 Comment

The quality of your copper and fiber infrastructure affects everything that traverses your network. In this module, you’ll learn the importance of troubleshooting physical issues like crosstalk, attenuation, shorts, opens, and impedance mismatches.

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CompTIA Network+ N10-004: 4.6 – Network Troubleshooting Methodologies

CompTIA Network+ N10-004: 4.6 – Network Troubleshooting Methodologies

| August 8, 2009 | 0 Comments

When a crisis is underway, it can be difficult to follow a logical path to help resolve the problem. In this video, you’ll learn how a detailed methodology can help you through each phase of the troubleshooting process from gathering of information through the resolution and documentation.

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CompTIA Network+ N10-004: 4.5 – Network Performance Optimization

CompTIA Network+ N10-004: 4.5 – Network Performance Optimization

| July 19, 2009 | 1 Comment

What are the most important reasons for maintaining network performance? Optimizing your network efficiency can yield significant gains, and in this module you’ll learn the importance of performance optimization and a number of ways you can increase the performance of your network. We’ll cover quality of server, load balancing, high availability, caching engines, and much more.

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CompTIA Network+ N10-004: 4.4 – Network Monitoring

CompTIA Network+ N10-004: 4.4 – Network Monitoring

| July 19, 2009 | 0 Comments

The world of network monitoring is a precise science, and it can provide insight into aspects of network performance that would otherwise go unseen. In this module, you’ll learn the use of network analyzers, connectivity software, and load testers to help build a more efficient network. You’ll also learn the value of logs and how the consolidation of logs files can assist in solving issues that span multiple devices.

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CompTIA Network+ N10-004: 4.3 – Evaluating the Network

CompTIA Network+ N10-004: 4.3 – Evaluating the Network

| July 19, 2009 | 0 Comments

You’ve spent hours documenting your network, but will all that work really be worth the effort? In this module, you’ll learn how your network documentation can be used to determine points of failure, evaluate network baselines, and help manage crisis situations.

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