Professor Messer

What happened to my wireless signal?

A client’s laptop has recently had its internal mini-PCI wireless adapter card replaced. Although the drivers for the card load without any errors and the Windows Device Manager shows the card working properly, the wireless card management software shows very low signal strength. The wireless card keeps dropping its wireless connection and will not maintain a consistent network link. What is the most likely reason for this problem?

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CompTIA Network+ N10-004: 6.2 – Firewalls

Firewalls are one of the most fundamental security components in our modern networks, but not all firewalls are created equally. In this module, you’ll learn about common features of modern firewalls, such as network-layer and application-layer firewalls, stateful vs. stateless operation, content filtering, signature identification, and zone-based security.

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CompTIA Network+ N10-004: 5.2 – Network Scanners

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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