Is your webcam broken?
In Windows XP, you notice that the USB attached webcam is not working. What system utility can tell you the status of the webcam?
The memory non-upgrade
You have upgraded the memory in a computer from 1 gigabyte to 2 GB. For the upgrade, you replaced two 512 MB DIMMs with two 1 GB DIMMs. Unfortunately, when you boot the computer the BIOS memory check only shows 1 GB of RAM. What is the most likely cause of this problem?
How should you rebuild this RAID array?
You’ve received a message in your error log that a drive in your RAID 1 array is faulty. What’s the best way to rebuild this RAID 1 array?
Why can’t you use your laptop expansion slots?
You want to add a FireWire port to your laptop, so you’ve selected a CardBus adapter that includes multiple ports on a single expansion card. When you slide the card into your laptop, however, the card will not insert completely into the slot. What’s the most likely cause of this problem?
Can you upgrade this computer?
You’ve been asked to upgrade an associate’s computer from Windows 2000 to Windows XP. The computer has 64 MB of RAM, 1 GB of free disk space, a 300 MHz processor, and VGA video capabilities. Can this computer be upgraded to Windows XP?
Now available: CompTIA Network+ Training in 720p HD!
Today, we’ve released a completely remastered version of the Professor Messer CompTIA Network+ downloadable certification videos. The most noticeable “upgrade” to our Network+ library is the inclusion of a high definition 720p format! All of our Network+ videos can now be watched at a crisp, clear 1280×720 resolution, as well as new 640×360 resolution iPod/iPhone compatible downloads for taking your videos anywhere.
Now available: CompTIA Network+ Training in 720p HD! Read More »
What’s your credit card number?
The theft of personal information is becoming a widespread problem for network security professionals. What’s the most common method for tricking a user into divulging their personal account details?
What command line utility checks for availability?
You’d like to verify that a computer across the network is operating. What command line utility can check the remote device for availability?
What command line utility checks for availability? Read More »
What can protect you on a public network?
You’re interested in doing some work on your laptop at the local coffee shop, but you’re concerned with the security of the public wireless network. What can help protect your computer while you’re using this public network?