A+ Pop Quizzes
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Why won’t your audio work?
You’ve plugged in some headphones to your new computer, but you aren’t able to hear [...] -
Troubleshooting Power Problems
You’re having a problem that you think is related to power. You’re not sure if [...] -
Which external hard drive interface is fastest?
You need to increase the storage in a new laptop with an external hard drive, [...] -
How can you troubleshoot this thermal issue?
You’ve been watching your hardware monitoring software, and you’ve noticed that the temperature of your [...] -
How can you automate a file transfer?
You need to automate file transfer to occur every morning at 3am. What Windows utility [...] - More from A+ Pop Quizzes
CompTIA A+ Videos
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220-701: 1.2 – PATA and SATA
The PATA and SATA standards are the most common hard drive interface types that you’ll [...] -
220-701: 1.2 – Bus Architectures and Expansion Slots
An important consideration of the very first IBM personal computer was including standardized expansion slots [...] -
220-701: 1.2 – Processor Sockets
Processors come in many different shapes and sizes. In this video, you’ll learn about DIP [...] -
220-701: 1.2 – Memory Slots
There have been many different memory slot formats through the years. In this video, you'll [...] -
220-701: 1.0 – Introduction to Personal Computers
A personal computer’s combination of chips, circuits, and other components can be an intimidating device. [...] - More from CompTIA A+ Videos
Network+ Training
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Common Security Threats
The security of the network is a never-ending struggle against the bad guys. In this [...] -
Device Security
The security of the devices on our network must be managed through both physical and [...] -
User Authentication
During a normal day, we are constantly authenticating our user credentials to web sites, file [...] -
Network Access Security
The network is a wide-open space, but there are a number of technologies that network [...] -
Firewalls
Firewalls are one of the most fundamental security components in our modern networks, but not [...] - More from Network+ Training
After Class Blog
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What’s new in CompTIA A+ 220-70x?
Since the 2009 introduction of the latest CompTIA A+ exam, there’s been a slow migration [...] -
Who I am (not).
Part of my online life is occasionally spent explaining who "Professor Messer" is supposed to [...] -
Professor Messer passes half-a-million training module views!
We’re pleased to announce that our free series of Professor Messer CompTIA training videos have [...] -
Official dates announced for CompTIA A+ 2009 Edition
In their June newsletter, CompTIA announced dates for the new exam and the phase-out plan [...] -
The CompTIA A+ 2009 requirements draft is now online
The overall structure of the exam requirements have changed a bit. Laptop and portable devices [...] - More from After Class Blog
Other Recent Articles
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What command line option connects to shares?
You’d like to use the command line to connect to a Windows share on your central file server. Which command can be used at a command prompt to connect to a network share?
A) NET CONNECT
B) SHARE USE
C) SHARE CONNECT
D) NET USE
E) O HAI CONNECT THE SHARE PLZ
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What is the “dual” in DIMM?
DIMM is an acronym for Dual Inline Memory Module. To what does the “dual” part of a DIMM refer?
- All Recent Articles
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