Final Exam Computer Hardware With a Complete Study Guide

What is the purpose of a zero-fill utility?ANSWERS-completely wipes a hard drive clean Which of the following statements is NOT true when setting up dual channeling?ANSWERS-if you have two pairs installed in two channels, all four DIMMs must match What's the first thing you should do to troubleshoot a network problem related to hardware?ANSWERS-check the indicator lights Describe the three levels of cache used by a processorANSWERS-There is L1, L2, and L3 cache. I don't really remember how to explain. What can you do to improve a printer's performance?ANSWERS-increase the memory If you touch an ungrounded component, you could damage it with __________ electricity.ANSWERS-static Which of the following is a consideration when purchasing a power supply with the correct wattage?ANSWERS-the power supply should be rated 30% higher than your needs Which of the following is NOT among the guidelines for handling and caring for a notebook computer?ANSWERS-when traveling, pack the notebook tightly in a suitcase, between soft clothing A dedicated device or computer called a print ____ can control several printers connected to a network.ANSWERS-server What do you need to do for Device Manager to display nonpresent devices?ANSWERS-create and set an environment variable How do you know if a printer needs routine maintenance?ANSWERS-the number of pages the printer has printed since the last maintenance List three of the six rules you should follow to protect computer parts against ESD.ANSWERS-1. Ground yourself and make sure there is no static electricity, so touch something or another person before passing a sensitive component. 2. Use antistatic spray on carpets or work on hardwood floors 3. Use a protective bag(s) until you are ready to work on or use the device. What is a possible remedy if your system hangs at odd time or during the boot?ANSWERS-flash the BIOS Which type of memory can support quad, triple, and dual channels?ANSWERS-DDR3 _____________ is temporary storage for data and instructions as they are being processed by the CPU.ANSWERS-RAM Which feature should you configure on a network adapter to control which applications have priority on the network?ANSWERS-QoS A _______________ partition contains a copy of the OS build, device drivers, and preinstalled applications needed to restore the system to its factory state.ANSWERS-recovery Which of the following is NOT true of a motherboard?ANSWERS-has a heat sink on the PCIe slots What is the first thing you should do to get toner dust off your clothes?ANSWERS-use a can of compressed air to blow off the toner What is the purpose of the LightScribe technology?ANSWERS-labels can be burned on the top of a disc In the Accelerated Hub Architecture, the fast end of the hub is called the _________________.ANSWERS-northbridge What are three things you can do to solve an overheating problem?ANSWERS-1) Use compressed air to blow off dust from around the vents 2) Check to see if the fan is running and replace it, if it is not. 3) Power off the CPU What should you do if the system continually reboots and you can't read the error message produced on a blue screen?ANSWERS-press F8 as Windows starts up Which of the following is NOT a solution to an overheating problem?ANSWERS-remove the covers from empty expansion slots List the three approaches to dealing with a broken internal device on a notebook computer.ANSWERS-1. Return the notebook to the manufacturer or service center. 2. Swap an external component for an internal component. 3. Switch out or replace the internal device with a new device. What type of device do you need if you want to connect two network segments together such as a wireless network and a wired network?ANSWERS-bridge If you have a PCI Express Version 2 video card, how many pins will the power connector have if the card requires extra power?ANSWERS-8 What is a recovery partition?ANSWERS-It's a partition created to restore the system to its original state. Which of the following is true about a crossover cable?ANSWERS-it can be used to connect two PCs together Describe the PCI Express bus and contrast it with previous versions of the PCI bus.ANSWERS-PCI Express (PCIe) uses an altogether different architectural design than conventional PCI and PCI-X; PCIe is not backward compatible with either. PCI Express will ultimately replace both these buses as well as the AGP bus, although it is expected PCI Express will coexist with conventional PCI for some time to come. Whereas PCI uses a 32-bit or 64-bit parallel bus, PCI Express uses a serial bus, which is faster than a parallel bus because it transmits data in packets similar to how an Ethernet network, USB, and FireWire transmit data. A PCIe expansion slot can provide one or more of these serial lanes. Another difference in PCI Express is how it connects to the processor. One or more PCI Express slots used for video cards have a direct link to the North Bridge or to the processor (using Sandy Bridge or Ivy Bridge architecture). PCI Express currently comes in four different slot sizes called PCI Express ×1, ×4, ×8, and ×16. 2. Most manufacturers of notebooks offer at least a one-year ________________.ANSWERS-warranty What is a possible consequence of the thermal compound being improperly applied to the CPU?ANSWERS-the CPU can overheat What is the difference between bandwidth and throughput?ANSWERS-These terms are often used interchangeably, but they have different meanings. When talking about measuring throughput, you measure the amount of data flow under real-world conditions measuring with possible EMI influences, heavy traffic loads, improper wiring, and even network collisions. Take all this into account, take a measurement, and you have the network throughput. Bandwidth, on the other hand, refers to the maximum amount of information that can be sent through a particular medium under ideal conditions. What device should you consider if you want to have access to hard drives via an Ethernet connection?ANSWERS-NAS Which of the following is NOT true about hard disk drives?ANSWERS-sold state drives are less expensive than magnetic hard drives What is a fast way to determine if the problem is with the LCD panel or the video controller on a notebook computer?ANSWERS-connect it to an external monitor What tool can you use to stop and restart the Windows print spooler?ANSWERS-service console What are three tips you should keep in mind before beginning work inside a computer case?ANSWERS-Don't touch any of the chips on motherboard or drives. Don't touch microchips w/ magnetized screwdriver Never touch inside of a turned on computer Which of the following is true about moving a hard drive from a non-working computer to a working computer for the purposes of accessing the data on the drive?ANSWERS-you must have an Administrator password before you can access the data on the drive List three indications of a potential electrical danger.ANSWERS-Exposed wires, Liquid around the device, and smoke coming from the device. Which of the following is an indication that an inadequate power supply is the source of an intermittent problem?ANSWERS-the power supply whines when you first turn on the system Which of the following is NOT true about notebook computers?ANSWERS-on all models, the hard drive is always in the same place What is the transfer rate of a 64-bit module running at 1600 MHz?ANSWERS-12800 MB/second What are two major points you should keep in mind when selecting the correct wattage capacity for a power supply?ANSWERS--Video cards draw the most power - the power supply should be rated about 30 percent higher than expected needs Where are you likely to find a copy of the OS build, diagnostic software, and preinstalled applications on a notebook computer if you need to restore the system to its factory state?ANSWERS-in a recovery partition on the hard drive Which of the following describes USB 2.0?ANSWERS-480 Mbps, cable length up to 5 meters Which SATA standard provides a transfer rate of 3 Gb/sec?ANSWER