When a computer starts, it loads startup firmware from a component on the motherboard. What is the name of this component?
Which motherboard component contains the startup firmware for the computer? Read More »
The workplace can be a dangerous place! Fortunately, there are things we can do to help keep things safe. Which of these things is NOT part of a hazard prevention program?
How can you prevent environmental hazards in the workplace? Read More »
Every cable has a set of important networking properties. In this video, we’ll show you how transmission speeds, distance, duplex, noise immunity, and frequency characteristics apply and how these properties differ between cable types.
CompTIA Network+ N10-004: 2.1 – Cable Properties Read More »
After installing any Windows operating system, it’s useful to keep the original installation media nearby. Which of the following would NOT be a good use of the original installation CD-ROM?
Why do you need the keep the original Windows CDs? Read More »
A typical cabling infrastructure might be a mixture of many different copper and fiber technologies. In this video, we’ll show you the difference between different twisted pair categories, compare multi-mode with single-mode fiber, and discuss important considerations when wiring inside the ceilings and walls of your building.
The inside of a computer can be a dangerous place. Which one of these safety tips do NOT apply when working inside of a computer?
What are some important safety tips when working inside of a computer? Read More »
During normal troubleshooting of a desktop computer, you suspect that the power supply may not be providing enough output to support all of the installed peripherals. What tool can you use to test the output of the computer’s power supply?
Biometrics can be useful for security authentication. Which of these is an example of a biometric?
What term best describes the fraudulent gathering of sensitive information through look-alike web pages?
How do the bad guys get your personal information? Read More »
As human beings, we’re accustomed to referring to web sites and file servers by name (i.e., www.google.com, www.microsoft.com, etc.). Of course, our computers must have an IP address to properly communicate to the rest of the world. What command line utility can be used to resolve an IP address from a host name?
What utility resolves an IP address from a web site name? Read More »
