Archive for 2012
I see with my ears
You have just installed a new adapter card into a desktop computer and started Windows 7. What is the easiest way to confirm that the operating system has properly identified the new hardware?
Part of a nutritious breakfast
Which of these can be a source of RFI? Pick two.
I don’t think an eraser will help
You suspect that a computer is randomly failing because of a problem with the RAM. Where can you find the Windows Memory Diagnostic Tool in Windows 7? Pick two.
Your face is going to freeze like that
You would like to restrict the use of the USB ports on all of your computers for all users and operating systems. Which of these would be the most effective way to accomplish this?
You should consider auto-pay
One of your computers won’t start, and no lights are seen when you turn on the power. When you use your multimeter to check the voltage on the motherboard power connector, no voltage is seen on any of the pins. Which of these is the most likely cause of this issue?
CompTIA Network+ N10-005: 4.2 – Environmental Monitors
If you have an important server room, then you’ll need a good environmental monitor. In this video, you’ll learn how monitors and sensors can be used to keep a constant watch on the environment in your data center.
CompTIA Network+ N10-005: 4.2 – Multimeters
Every tech should have a good multimeter in their toolbox. In this video, you’ll learn how multimeters can help you resolve cabling issues in your environment.
CompTIA Network+ N10-005: 4.2 – TDR and OTDR
A TDR can provide a detailed analysis of your cabling infrastructure. In this video, you’ll learn about TDRs and ODTRs and how they provide such detailed cable analysis.
CompTIA Network+ N10-005: 4.2 – Loopback plugs
One of the easiest ways to diagnose a piece of hardware or a network connection is with a loopback plug. In this video, you’ll learn about loopback plugs and how they can be used in many troubleshooting situations.
CompTIA Network+ N10-005: 4.2 – Protocol Analyzers
If you need to troubleshoot complex network issues, then you’ll need a good protocol analyzer. In this video, you’ll learn about protocol analyzers, how to connect them to a network, and you’ll get an overview of a protocol analyzer user interface.
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