Professor Messer - CompTIA A+, CompTIA Network+, Certification Training

I see with my ears

Professor Messer — Thu, 17 May 2012 12:00:48 +0000

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?

A) Enable a hardware diagnostic

B) Launch the Device Manager

C) Search the Event Log for references to the new hardware

D) There is no practical way to associate the operating system with the hardware

E) If you listen close enough, you can HEAR it working

Part of a nutritious breakfast

Professor Messer — Wed, 16 May 2012 12:00:57 +0000

Which of these can be a source of RFI? Pick two.

A) Audio speakers

B) Microwave ovens

C) Multimeters

D) 802.11n access points

E) High-fiber cereals

I don’t think an eraser will help

Professor Messer — Tue, 15 May 2012 12:00:08 +0000

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.

A) Control Panel / Administrative Tools / Memory Diagnostics Tool

B) From a toolbar button in the Event Log

C) From the Windows Boot Manager

D) From the Start menu, type “memdiag”

E) Just blow on the memory modules. That usually works.

Your face is going to freeze like that

Professor Messer — Fri, 11 May 2012 12:00:21 +0000

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 efficient way to accomplish this?

A) Disable the USB ports in the BIOS and set a supervisor password

B) Remove the USB drivers from Windows Device Manager

C) Use a physical USB lock on each port

D) Create a Global Policy to disable all USB ports

E) Scowl at people when you see a USB flash drive

You should consider auto-pay

Professor Messer — Thu, 10 May 2012 12:00:47 +0000

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?

A) The motherboard is faulty

B) The power supply is faulty

C) The power supply wattage is insufficient

D) The motherboard is in standby mode

E) You forgot the pay the power bill

CompTIA Network+ N10-005: 4.2 – Environmental Monitors

Professor Messer — Thu, 10 May 2012 02:31:00 +0000

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.

<< Previous Video: Multimeters Next: Main Index >>

CompTIA Network+ N10-005: 4.2 – Multimeters

Professor Messer — Thu, 10 May 2012 02:28:47 +0000

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.

<< Previous Video: TDR and OTDR Next: Environmental Monitors >>

CompTIA Network+ N10-005: 4.2 – TDR and OTDR

Professor Messer — Thu, 10 May 2012 02:26:39 +0000

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.

<< Previous Video: Loopback Plugs Next: Multimeters >>

CompTIA Network+ N10-005: 4.2 – Loopback plugs

Professor Messer — Thu, 10 May 2012 02:23:54 +0000

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.

<< Previous Video: Protocol Analyzers Next: TDR and OTDR >>

CompTIA Network+ N10-005: 4.2 – Protocol Analyzers

Professor Messer — Thu, 10 May 2012 02:21:36 +0000

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.

<< Previous Video: Punch Down Tools Next: Loopback Plugs >>