Archive for 2010
What is PCL?
You’ve found the abbreviation PCL on a product specification sheet. What is PCL?
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 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?
Which topology is this?
Which topology was often seen on early local area networks, has a very simple structure, but is prone to errors that can affect large parts of the topology at one time?
220-701: 1.2 – Chipsets
If you look closely at a motherboard, you’ll see interfaces, connections, and many different chipsets. In this module, you’ll learn about these various chipsets and their interrelations.
220-701: 1.2 – RAID
RAID arrays are common ways to provide high-throughput and redundancy for groups of hard drives. In this module, you’ll learn how the different RAID technologies can be used to build large-scale storage infrastructures. You’ll also learn the advantages and disadvantages of the different RAID technologies and how hardware and software RAID compares.
Professor Messer’s CompTIA A+ Pop Quiz Archives
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Why is your CPU so hot?
You’ve been monitoring your computer, and you’ve found that the temperature of your CPU is running very hot even though your computer is showing very low CPU utilization. Which of these options would be the most likely cause of this issue?
Which cables do you need?
A “road warrior” is stocking up their laptop computer case for a road trip, and they’ve asked you for a set of cables that could be used for hotel Ethernet links and the occasional dial-up connection. What kind of cables/connectors do they need? Pick two.
Which RAID type is redundant and efficient?
Which of these RAID types not only provides a high level of availability, but also allows efficient access to data when a failure occurs?
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