Ch. 13 Exam Questions
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Which system utility would you use to troubleshoot hardware devices, examine and control the resources used by specific devices, and install updated device drivers?
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Device Manager
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You have just installed a new hardware device, upgraded the driver, and installed the custom software that came with the device. Now you can't get the device to work. What should you do first?
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Run any diagnostic software that came with the device
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Greg, a graphic artist, installs a new art application on his Windows 7 computer. The application prompts Greg to install an updated video driver, which is unsigned. Greg accepts the unsigned driver and completes the installation. Greg uses the system for several days, and the reports that his display doesnt seem to refresh properly under some conditions. You want to congfigure gregs computer to use the previous video driver until the manufacturer provices a signed driver, but he still needs to be able to use the application he installed. What do you do?
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Boot the system into Safe Mode. Open device manager and select the video driver. Open the drivers properties and select Roll back Driver.
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A user reports that they are unable to access their Firewire drive after moving the PC from beneath the desk to the top of the desk. What is the most likely cause of this problem?
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Card is not properly seated.
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You have just installed a new device in your windows computer. After installation, you cant use the device. You check in Device Manager and find an icon for the device with a yellow exclamation mark over it. What should you do?
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Download the latest driver from the manufacturers web site.
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A user complains that his USB scanner no longer works. You check device manager and see the icon with a black down arrow on it. What should you do?
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Enable the device
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You have just installed a new device in your windows 7 computer using the devices installation disc and the included drivers. After installation, the system crashes when you try to use the device. What should you do?
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Download the latest driver from the manufacturers web site.
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In which of the following situations would driver rollback be the best tool to use?
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You recently installed a new video driver and now the system behaves erratically.
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In which of the following situations would restoring from a system image be the best options?
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You need to restore a windows system after a hard drive failure
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In which of the following situations would restoring from a backup be the best option? Select two
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You need to restore several word processing files that were accidentally deleted from My Documents, You accidentally deleted several important e-mails from Outlook and need to restore them.
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When you load a partition management utility on a workstation running an OEM version of Windows 7, you notice that there is a hidden partition on the workstation's hard drive. You decide to delete it to free up space on the drive. Should you do this?
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No, this is the system's recovery partition.
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What is a recovery partition?
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a partition created by the computer manufacturer to restore the system to its original state.
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Which of the following situations would reverting to a system Restore point be the best option?
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You recently installed a new application and now the system behaves erractically
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Which of the following are likely symptoms of malware infections? Select two
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Renamed system files, Changed file permissions
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Which techniques are used in a pharming attack to redirect legitimate web traffic to malicious web sites? Select two
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Exploiting DHCP servers to deliver the IP address of poisioned DNS servers, changing the hosts file of user's computer.
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While browsing the internet, a pop-up browser window is displayed warning you that your system is infected with a virus. You are directed to click a link to scan for and remove the virus. What should you do? Select Two
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Update the virus definition for your locally-installed anti-virus software, Run a full system scan using the anti0virus software installed on your system.
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Which of the following idetify the key differences between a worm and a virus? Select two
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A virus relies on a host for replication, worms independently replicate themselves
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Which of the following problems is common for dot matrix printers?
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Paper scraps are caught in the feed mechanism
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A dot matrix printer is printing faintly after replacing the print head. What should you do?
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Check the gap between the printer head and the paper.
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Your laser printer prints a vertical black line on every page. You change the toner cartridge but the problem does not go away. What is the most likely problem?
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A corona wire is dirty
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You have just installed a maintenance kit in your laser printer. What should you do next?
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Reset the page count.
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Which of the following conditions would typically result in replacing the drum on a laser printer?
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Spots at regular intervals on the page
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You are testing a printer you just installed, so you use the operator panel on the printer to print a test page. Later, you use the printer properties on your computer to print a test page. Instead of a normal test page, you receive several pages with garbled characters on them.W hat is the likely cause of the problem?
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wrong print driver
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You're conducting scheduled maintenance on a laser printer. You notice that there is a build-up of excess toner inside the interior of the printer. Which of the following is the proper way to remove it?
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Use an anti-static vacuum.
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You are trying to print complex images on an old laser printer that uses parrallel connection to your workstation. The pages produced cut off the bottom third of each image you print. Which of the following resolutions will fix the problem?
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Install more memory in the laser printer.
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After removing the printed paper from your laser printer, the toner smudges and can be wiped off in places. Which of the following is the most likely problem?
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Fuser rolls
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You replaces the print cartridge on an inkjet printer. What should you do next?
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Calibrate the printer
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You have a laser printer that has worked fine until today. Now whenever anything is printed, only black pages come out. Which part are you most likely to replace?
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Transfer corona
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You are troubleshooting an older laser printer that is creating 'accordion jams' where the paper is cumpled as it exits the printer moving into the output tray. What can you do to fix this problem?
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Install a maintenance kit.
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When you print from your laser printer, the paper contains faint images from previous print-outs. Which components should you check? Select two
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Rubber Scraper, discharge lamp
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Which of the following paper types should not be used in inkjet printers?
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Very glossy paper
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Which of the following is a symptom of a dirty drum or roller in a laser printer?
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Lines or splotches repeated at regular intervals on the print job.
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For the past several days the print jobs from the inkjet printer are missing colors and leaving gaps. What should you do to resolve the problem?
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Use the automatic cleaning feature
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You're troublshooting a malfunctioning notebook computer system. The user indicated that the screen suddenly became ddark and difficult to read while he was downloading a large file through his wireless network card while the system was plugged in at his desk. You've checked the system and determined that the backlight has stopped working. Which of the following could be the cause? Choose two
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The cold cathode fluorescent lamp has burned out and needs to be replaced, the inverter in the LCD assembly has malfunctioned.
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The user has indicated the screen is always dark and difficult to read even while the system is plugged in to a wall outlet. You checked the system and determined the backlight isnt working. Which of the following could be the cause?
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The LCD cutoff switch is stuck in the off position
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You've checked the AC adapter and found that the LED light is lit when plugged into a wall outlet. What should you check next? Select two
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Verify that the power LED on the notebook computer is lit when plugged into the wall outlet, Verify that the AC adapter produces the correct DC voltage for the notebook computer.
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Your manager has been using the same laptop computer without error for four years. Suddenly, the computer will not start and run correctly. What should you do to isolate the problem?
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Remove the batteries and attempt to run the computer from a wall outlet.
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You're troubleshooting a malfunctioning noteboook computer. Nothing appears on the LCD display when the system is powered on. When you connect an external monitor to the system, the windows desktop is displayed properly on the monitor. What could be causing this problem? Select two
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The display output has been redirected to the external monitor port using the Fn key, the LCD assembly is malfunctioning.
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You get a call from one user stating that her wireless connection no longer works. She has checked the wireless configuration and she knows it to be correct because other sales people at the same location are able to connect. What should you do first?
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Have her verify that the wireless card's hardware switch is in the On position.
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Six months ago, you purchased a new laptop. Since then, you have noticed that the batter life has been steadily going down. When it was new, a full charge lasted about 3 hours. Now you are lucky to get 2 hours before the battery charge level drops before 5%. What should be your first step to correct this problem?
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Calibrate the battery
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A user in sales cannot get his laptop to display through a projector. He sees the screen output on the built-in LCD display, but the video is not being seen on the projector. What should you do first?
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Use the Fn key to redirect display to the external video port.
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Which of the following should you do if you cannot turn a laptop off?
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Unplug the AC power and remove the battery
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Youre troubleshooting a malfunctioning notebook computer. Nothing appears on the LCD display when the system is powered on. What is the first thing you should do?
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Plug in an external monitor
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Your laptop carrying case is designed for a 15-inch laptop, yet you think you can squeeze your 16 inch laptop into it. Before slipping the laptop into the case, what should you do?
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Remove any ExpressCards from their slots.
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Youre troubleshooting a malfunctioning LCD display on a notebook computer system. After confirming that the notebook is receiving AC power, you plug in an external monitor. The external monitor does not display the output from the notebook after rpessing the fn key. Which of the following could be the cause?
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failed video adapter
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Which LCD component is used to illuminate a notebook computers display?
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Backlight
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The yser has complained that the digitizer pad registers stylus taps about 1 inch to the right of where the tap actually occured. How can you fix this?
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Recalibrate the digitizer pad.
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Your lobby receptionist uses a laptop computer to complete her day-to-day tasks. You are concered about the security of her system. What should you do? Select two
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Secure the laptop to the desk using a cable lock, configure the laptop with a biometric fingerprint scanner.
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you have just finished upgrading the CPU in your desktop system. After running the system for about 15 minutes, the system spontaneously shuts down. What should you do first to troubleshoot problem? Select two
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Check the thermal shutdown threshold in the Bios, check the CPU fan
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Lately your computer is spontaneously rebooting and freezing. What is the most likely cause?
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Overheating CPU
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Lately your computer is spontaneously shutting down after only a few minutes of use. What is the most likely cause? Select two
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Overheated CPU, cooling fans clogged with dust.
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To test a power supply, you want to use a multimeter to measure the voltage on a Molex hard disk drive connector. To do this, you need to turn the power supply on. Which pins on the 24 pin motherboard connector coming from the power supply can be shunted to turn the power supply on? Select two
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Pins 15 and 16, pins 16 and 17
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a user has called to complain that her computer wont boot. It stops at the BIOS startup screen right after the memory has been tested and displays a 301 keyboard error. What should you do first?
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Verify that no keys are being pressed down during POST
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You have a desktop computer that uses a 250 watt power supply. YOu recently added a 4-disk RAID10 array to the system and now it spontaneously shuts down. What should you do?
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Upgrade to a power supply that provides more watts
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You are testing the power supply in a PC system by measure the voltage available on the 4-pin molex connector. The voltage on the yellow wire is +10.1 volts. What should you do?
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Replace the power supply
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You have installed a new computer with a quad-care 64-bit processor, 6 gb of memory, and a PCIe video card with 512 MB of memory. After installing the operating system, you see less tham 4gb of memory showing as available in windows. What should you do?
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Install a 64-bit version of the operating system
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When you try to boot your computer, it hands after POST. when you access the cmos setup program, you see that the date is several years behind and the time is set to 12:01 am. What is the most likely problem?
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the CMOS battery has failed
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You have an existing computer that youve been using for years. You decide to upgrade the processor. You check the motherboard documentation and purchase the fastest processor that is supported by the motherboard. When you start the computer, it beeps regularly but nothing is shown on the screen and it doesnt start. What should you do? Select two
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reinstall the old processor in the motherboard, flash the bios
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You have just installed several devices at once to a computer, but now the computer fails to boot properly. What should you do?
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Remove all of the newly added devices and install them one at a time
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You are in the process of configuring a new computer. The motherboard has six memory slots and supports triple channel memory. You install two memory modules. When you boot the computer, the BIOS recognize both modules, but the memory only runs in dual channel mode. What should you do? Select two
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Move the modules to the correct motherboard slots, install a third identical memory module
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After arriving early this morning, you turn on your copmuter to begin on work. Instantly you see smoke and smell a storage odor coming from the computer. What should you do?
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Shut off the system immediately
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You are testing the power supply in a PC system by measureing the voltage avilable on the 4-pin molex connector. The voltage on the red wire is +5.1 volts. WHat should you do?
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Nothing, the power supply is working normally
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What should you do before flashing the bios?
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Connect the computer to a UPS, backup CMOS settings
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You have just replaces the motherboard in your computer. Your computer starts, but the hard disk light does not come on while the system is booting. What should you do?
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Connect the hard disk LED to the motherboard
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Your motherboard has two memory slots and supports a maximum of * gb of RAM. after installing two 4 gb modules and booting your system, you find that windows only recognizes 3.5 gb of Ram. What should you do?
answer
Upgrade to a 64-bit version of windows
