What is a null modem cable?
You’re probably familiar with the serial cables that are used to connect external modems with computers. There also exists another type of cable called a null modem cable. How is a null modem cable used?
What laptop power-down mode is this?
Your laptop includes some power-down options, including one that can halt the operation of your computer but keep the CPU and memory powered. What power-down mode is this?
Which drive technology uses terminators?
Which drive technology uses terminators to signal the “end” of the bus?
What do all of those beeps mean?
During the boot process of your computer, the system beeps loudly a few times and no text ever displays on the monitor. What is the most likely reason for this issue?
How do you start the Task Manager?
Which one of these methods cannot be used to start the Windows Task Manager in Windows XP?
Why is your printer output so difficult to see?
One of your customers has been using a new laser printer in their office for about month. Although the printer has been providing clear and sharp output, over the course of the last week the printouts have become very faded over the entire page. What is the most likely cause of this problem?
CompTIA Network+ N10-004: 4.5 – Network Performance Optimization
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
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
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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CompTIA Network+ N10-004: 4.2 – Configuration Management Documentation
Building a network is a technological challenge, but the network isn’t truly finished until the documentation is complete. In this module, you’ll learn about the importance of documentation and how your network could benefit from schematics, baselines, procedures, and much more.
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