The OSI seven layer model is an important concept for any networking professional. In this video, we’ll break down every layer of the OSI model and discuss the integration of the OSI model into real-world networking examples.
Network+ certification training for free? Absolutely!
Professor Messer’s N10-004 CompTIA Network+ Training Course Read More »
You’ve been asked to convert a Windows WAV file into an MP3 file with a setting of 44.1kHz. What does the kHz option mean?
The overall structure of the exam requirements have changed a bit. Laptop and portable devices have been integrated into the hardware section of the requirements, and safety, communication, and professionalism have been collapsed into a single section called “Operational Procedures.” I like the simplified approach.
The CompTIA A+ 2009 requirements draft is now online Read More »
One of the selections on the shutdown selection on a laptop is “hibernate.” What does the hibernate option actually do?
To help troubleshoot an intermittent problem, the manufacturer of your computer recommends that you upgrade the system’s firmware. Where is the firmware located?
What software tool allows you to launch an operating system from media other than the hard drive in order to run detailed diagnostics, use hard drive partitioning tools, perform hardware tests, and other advanced functions?
What software tool boots from other media to perform diagnostics? Read More »
Which one of these things can NOT be done with a typical multimeter?
One of your customers is not able to browse the Internet from their workstation. When you look at the network adapter, you see that a light is on next to the RJ-45 connector. What does the light indicate?
What Windows command line program allows you to edit files in a full-screen mode?
