Unit 04- Peripherals
On a Linux system, what is the name of the directory where you will find a text file called devices that contains information about the devices that are configured on the system?
/ proc (not /sys)
Match the USB connector types on the left with the image labels on the right. (Not all USB connector types will be used.)
1 USB 2.0 Type-B 2 microUSB 3 miniUSB 4 USB 3.0 Micro-B
Match the USB connector types on the left with the image labels on the right. (Not all USB connector types will be used.)
1 USB 3.0 Type-A 2 USB 3.0 Micro-B 3 USB 3.0 Type-B 4 USB 2.0 Type-A
Which of the following are true of the SXGA screen resolution? (Select two.)
1280 x 1024 5:4 aspect ratio (Divide and both = 256)
Which IEEE version supports peer-to-peer transmission of data?
1394.3 (1394, 1394a, 1394b, 1394.3)
What is the maximum cable length for the IEEE 1394a standard?
4.5 meters (not 5)
What is the maximum data transfer rate of an IEEE 1394a device?
400 Mbps (1394 and 1394a- 100, 200, 400Mb/s)
Select the aspect ratio that applies to the display types listed. -Which aspect ratio applies to displays with resolutions of 800x600 and 1600x1200? -Which aspect ratio applies to displays with resolutions of 1680x1050 and 1920x1200? -Which aspect ratio applies to displays with resolutions of 1280x720 and 1920x1080?
4:3 16:10 16:9
What is the maximum data transfer speed for USB 3.0 devices?
5 Gbps (1.1= 1.5, 12MB/s, 2.0= 480MB/s, 3.0=5Gb/s, 3.1=10Gb/s)
Match each IEEE 1394 connector type on the left with the appropriate description on the right. Used with FireWire 400 devices and provides power via a 12 V wire Used with Fireware 400 devices that must be self-powered Used with FireWire 800 devices that are most commonly found on Apple computers
6-pin connector 4-pin connector 9-pin connector
How many devices does a single IEEE 1394 bus support?
63 (USB supports 127 devices)
During the POST, you receive a message stating: Keyboard not present. Press F1 to continue. What are the most likely causes of this error message? (Select two.)
A stuck key on the keyboard A poor keyboard connection
Which of the following devices would you add to a computer if you needed to take inventory at a retail store by scanning the UPC symbols on products?
Bar code reader
You have a friend who is offering to sell the monitor and video card from his gaming system along with several PC games. The games have fast moving graphics, and you want to be able to play them on your own home system. The monitor he is selling is an LCD TN with a 144 Hz refresh rate. The video card he is selling supports a max refresh rate of 144 Hz. You're sure you want to buy the games, but you have a couple of other choices when it comes to the monitor and the video card. The monitor in your current system has a 60 Hz refresh rate. The video card has a max refresh rate of 75 Hz. This configuration has always worked fine for watching videos. You're also looking at new 60 Hz LCD IPS monitors and several high end video cards with max refresh rates of up to 240 Hz. Which of the following options will allow you to play the games on your home system with the best gaming experience possible?
Buy your friend's games, monitor, and video card. Swap out both your video card and monitor.
You have purchased a 1600 x 1200 LCD monitor and connected it to the DVI-I port on your computer using a DVI-D cable. You configure the screen resolution at 1280 x 1024 with 24-bit color. The display output seems to be fuzzy and stretched. What should you do to correct the problem?
Change the screen resolution to the native resolution of the monitor.
You have purchased an LED monitor and connected it to the DVI-I port on your computer using a DVI-D cable. You configure the screen resolution to 1440 x 900 with 32-bit color. The display on the screen seems to be pixilated. What should you do to correct the problem?
Change the screen resolution to the native resolution of the monitor.
A customer complains that a recently purchased monitor no longer displays a picture. You verify that the monitor is powered on and that the video cable is securely fastened to the video port. Which of the following actions should you take next?
Check the monitor's brightness and contrast settings using the controls on the monitor.
You've just purchased 10 new notebook systems for your users. You are concerned that users will leave the systems on for long periods of time, which could result in display burn-in. What should you do to prevent this from happening?
Configure a screen saver on each system.
Which of the following terms describes the difference between white and black in an LCD monitor?
Contrast ratio
How many pins are on a VGA connector?
D-shaped with 15 pins
As a member of the help desk administration team you've been assigned to update the driver for the network adapter that is installed on most of the machines in your department. You have a copy of the latest driver on a USB flash drive. Which Windows utility will allow you to manually update this new driver?
Device Manager
Which system utility would you use to troubleshoot hardware devices, examine and control the resources used by specific devices, and install updated device drivers?
Device Manager
Which of the following statements are true about the DisplayPort interface for connecting video monitors to computers? (Select two.)
DisplayPort uses a lower voltage than DVI or HDMI. DisplayPort can send both video and audio signals over the same cable.
You have just connected a new USB device to your Windows system. You used the installation disc that came with the device to install the drivers needed to support the device. After installation, the system frequently crashes when you try to access the new device. What should you do?
Download and install the latest driver from the manufacturer's Website.
You've just installed a new video card in a user's Windows workstation. However, when you power the system on, the screen is displayed in 16 colors at 640x480 resolution. Which of the following will resolve this problem?
Download and install the latest driver from the video card manufacturer's website.
You have just installed a new device in your Windows system. After installation, you can't use the device. You check Device Manager and find an icon for the device with a yellow exclamation mark over it. What should you do?
Download the latest driver from the manufacturer's Website.
You recently installed a fiber-optic network board in an expansion slot in your system's motherboard. You no longer need to use the integrated UTP network board that is integrated in the motherboard. Click the option you would use in the properties of the integrated network adapter in Device Manager to disable it.
Driver
A user complains that his USB scanner no longer works. You check Device Manager and see an icon with a black down arrow on it. What should you do?
Enable the device in Device Manager.
Which of the following video card connectors provides digital video output? (Select two.)
HDMI DVI-D (DVI-A= analog)
I/O Address IRQ (Interrupt Request) DMA (Direct Memory Access) IRQ (Interrupt Request) I/O Address
I/O Address IRQ (Interrupt Request) DMA (Direct Memory Access) IRQ (Interrupt Request) I/O Address
Match the system resources on the left with the descriptions or examples on the right. The system resources may be used once, more than once, or not at all. -Allows two devices in a computer to send information to each other -The method used by different system devices to interact with the CPU -Conduits used by high-speed devices to bypass the CPU and communicate directly with RAM -Allows a device to request processing time from the CPU -Each device in a computer must have its own
I/O Address IRQ (Interrupt Request) DMA (Direct Memory Access) IRQ (Interrupt Request) I/O Address
Most devices that you install in a system require little to no configuration; they simply work after you plug them in. This is because devices are automatically assigned the system resources needed for the device to begin functioning. What are the three types of system resources that are usually automatically assigned?
I/O address, IRQ, DMA channel
The IEEE 1394 (FireWire) standard is often compared to USB. Each standard has unique features. Drag the standard on the left to the appropriate feature on the right. (Each standard can be used more than once.) Capable of isochronous data transmissions. Provides up to 9 W of power via a 5 V wire. Provides up to 60 W of power via a 12 V wire. Capable of asynchronous data transmissions. Supports peer-to-peer transfers.
IEEE 1394 (FireWire) USB IEEE 1394 (FireWire) USB IEEE 1394 (FireWire)
Which of the following standards provides for data transfer rates up to 800 Mbps with a maximum cable length of 100 meters?
IEEE 1394b (1394= 100,200,400Mb/s, 1394.3= peer-to-peer)
Your monitor is displaying images using strange colors. Which of the following is a solution to this problem?
Increase the color depth.
You need to connect a new USB scanner to the USB port on your computer. What should you do?
Install the scanner drivers, then connect the scanner to the USB port and complete the Add a Device wizard when it pops up. (don't just plug in the device)
You have three computers in your office. You would like to reduce the time it takes to move from one computer to the next, and you would like to use only one keyboard, one monitor, and one mouse for all three computers. Which device will allow this type of setup?
KVM
You are putting together a system for a graphic artist and need to make sure you get a display that meets her needs. The display needs to have very good color reproduction quality and viewing angles. The display needs to run cool and be power efficient. Which type of display is most likely to meet these needs?
LCD display with IPS panel (In-Plane Switching Panels)
You are putting together a gaming system and need to make sure you get a display that meets your needs. The display needs to have a very good response time, and you would prefer that it be affordable and power efficient. Which type of display is most likely to meet these needs?
LCD display with TN panel (Twisted Nematic Panels)
Which of the following is true of modern LCD monitors regarding backlighting?
LEDs are used to backlight the screen.
You are trying to connect a new USB device to your computer. You install the driver, then connect the device to an open USB port. The device does not work. What should you do first?
Make sure the USB device is plugged in properly.
What type of USB 2.0 connector is shown here?
MicroUSB
Device manufacturers are constantly finding bugs, vulnerabilities, or better ways for their devices to communicate with the operating system. Because of this, what should you do before you install a new device?
Obtain the latest driver from the manufacturer's website before installing the device. (not after you install the drive)
You have just installed several devices at once to a computer, but now the computer fails to boot properly. What should you do?
Remove all of the newly added devices and install them one at a time.
A user installs a new graphics application on her Windows system. During the installation process, the application prompts the user to load a custom video driver that has been optimized for the application. She does so and then completes the installation. Several days later, the user reports that her display doesn't seem to be working properly under some conditions. To fix the problem, you need to reload the old video driver. How could you accomplish this? (Select two.)
Revert the system to a restore point prior to installing the video driver. Use Device Manager to roll back the video driver.
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?
Run any diagnostic software that came with the device.
You have purchased an LED monitor and connected it to the HDMI port on your computer using an HDMI cable. You configure the screen resolution to 1280 x 1024 with 32-bit color. The geometry of the images displayed on the screen appear to be distorted. What should you do to correct the problem?
Set the display resolution to the native resolution of the monitor.
You have purchased an LED monitor and connected it to the HDMI port on your computer using an HDMI cable. You configure the screen resolution to 1280 x 768 with 32-bit color. The images displayed on the screen appear to be overly large. What should you do to correct the problem?
Set the display resolution to the native resolution of the monitor.
You recently upgraded a client's older workstation from Windows 7 to Windows 10. The client has called to complain that the interface is very slow. For example, after clicking on the Start button, the Start Menu slowly appears on the screen. How can you fix this problem without upgrading the hardware itself?
Set the visual effects for best performance.
Match the peripheral devices on the left with the descriptions or examples on the right. Each peripheral device may be used once, more than once, or not at all. Used to scan hardware which contains an embedded microchip for authentication Used to capture some type of analog signal and convert it into digital data Can be stand-alone devices or integrated with other peripherals, such as a keyboard Used to scan users' unique physical features and use them to verify their identity Graphics tablets mostly used by graphic artists to capture hand-drawn images Fingerprint scanner Most commonly used in retail environments at checkout stands
Smart Card Reader Digitizer Smart Card Reader Biometric Scanner Digitizer Biometric Scanner Barcode Reader
Which of the following devices typically use a microUSB connector? (Select two.)
Smartphones Digital cameras
You have installed a device in your system and have run the Add a device wizard from the Control Panel. Under what circumstance would it be appropriate to continue with the wizard if the device was not discovered?
The device does not support plug and play.
You plug a USB 2.0 external storage device into a USB 3.0 port on your computer. Which of the following statements is true regarding the device?
The device will work, but will only transfer at USB 2.0 speeds.
Which of the following is true of most newer SATA drives?
They can be added to or removed from a system without shutting down the computer.
What type of peripheral device is typically found on a notebook computer and allows the user to control the cursor with a finger?
Touch pad
Which of the following is considered an input devices?
Touchscreen
What type of USB 3.0 connector is shown here?
Type-A
Which is the most common interface for peripheral devices?
USB
Which of the following standards provides for data transfer rates up to 480 Mbps with a maximum cable length of 5 meters?
USB 2.0 (1.1= 1.5, 12MB/s, 2.0= 480MB/s, 3.0=5Gb/s, 3.1=10Gb/s)
For which type of device will you typically install the driver before you connect the device to your system?
USB devices (not firewires)
What is the difference between UXGA and WUXGA displays?
WUXGA has a widescreen aspect ratio. (UXGA= 1600x1200, WUXGA 1920x1200)
In which of the following situations would driver rollback be the best tool to use?
You recently installed a new video driver and now the system behaves erratically.
