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 |
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 |
Which of the following is considered input devices? |
Touchscreen |
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 |
You plug a USB 2.0 external storage device into a USB 3.0 port on the computer. Which of the following statements is true regarding the device? |
The device will work, but will only transfer at the USB 2.0 speeds. |
Which of the following devices typically use a microUSB connector? (Select two) |
Digital Cameras Smartphones |
You need to connect a new USB scanner to the USB port on your computer. What should you do? |
Install the drivers, then connect the scanner to the USB port and complete the Add a Device wizard when it pops up. |
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 |
What is the maximum data transfer speed for 3.0 devices? |
5 Gbps |
You have a Windows workstation with no unused PCIe slots. One of the PCIe slots is used by a Firewire card that you want to replace with a 802.11n wireless network interface. The workstation is up and running. How should you make the change? |
On the system tray double-click the safely remove hardware icon. Shut down the Firewire card then remove it. Insert the network card. |
Which of the following standards provides for data transfer rates up to 800 Mbps with the maximum cable length of 100 meters? |
IEEE 1394b |
How many devices does a single IEEE 1394 bus support/ |
63 |
What is the maximum cable length for the IEEE 1394a standard? |
4.5 meters |
What is the maximum data transfer rate of an IEEE 1394a device? |
400 Mbps |
Which IEEE version supports peer-to-peer transmission of data? |
1394.3 |
Use with Firewire 400 devices and provides power via a 12 v wire |
6-pin connector |
Used with Firewire 400 devices that must be self-powered |
4-pin connector |
Used with Firewire 800 devices that are most commonly found on Apple Computers |
9-pin connector |
What is the difference between UXGA and WUXGA displays? |
WUXGA has a widescreen aspect ratio. |
Which of the following are true of the SXGA screen resolution? (Select two.) |
1280 x 1024 5:4 aspect ratio |
Which of the following terms describe the difference between white and black in an LCD monitor? |
Contrast ratio |
Which of the following video card connectors provide digital video output? (Select two.) |
DVI-D HDMI |
How many pins are on a VGA connector? |
D-shaped with 15 pins |
Which of the following statements are true about the DisplayPort interface for connecting video monitors to computers? |
DisplayPort can send both video and audio signals over the same cable. DisplayPort uses a lower voltage than DVI or HDMI. |
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 efficient. Which type of display is most likely to meet these needs? |
LCD display with IPS panel |
Which aspect ratio applies to display with resolutions of 800x600 and 1600x1200? |
4:3 |
Which aspect ratio applies to display with resolutions of 1680x1050 and 1920x1200? |
16:10 |
Which aspect ratio applies to display with resolutions of 1280x720 and 1920x1080? |
16:9 |
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 |
Which of the following is true of modern LCD monitors regarding backlighting? |
LEDs are used to backlight the screen. |
You have purchased a 1600x1200 LCD monitor and connected it to the DVI-I port on your computer using a DVI-D cable. Your configure the screen resolution at 1280x1024 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 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. |
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 |
Device manufacturers are constantly finding bugs, vulnerabilities, or better ways 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 as soon as possible after installing the device. |
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 use flash drive. Which Windows utility will allow you to manually update this new driver? |
Device Manager |
For which type of device will you typically install the driver before you connect the device to your system? |
USB devices |
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 |
Which of the following is true of most newer SATA drivers? |
They can be added to or removed from the system without shutting down the computer. |
Allows two devices in a computer to send information to each other |
I/O address |
The method used by different system devices to interact with the CPU |
IRQ (Interrupt Request) |
Conduits used by high-speed devices to bypass the CPU and communicate directly with RAM |
DMA channel |
Allows a device to request processing time from the CPU |
IRQ (Interrupt Request) |
Each device in a computer must have its own |
I/O address |
Used to scan hardware which contains an embedded microchip for authentication |
Smart Card Reader |
Used to capture some type of analog signal and convert it into digital data |
Digitizer |
Can be stand-alone devices or integrate with other peripherals, such as keyboard |
Smart Card Reader |
Used to scan users' unique physical features and use them to verify their identity |
Biometric Scanner |
Graphics tablets mostly used by graphic artist to capture hand-drawn images |
Digitizer |
Fingerprint Scanner |
Biometric Scanner |
Most commonly used in retail environments at checkout stands |
Barcode Reader |
Your monitor is displaying images using strange colors. Which of the following is a solution to this problem? |
Increase the color depth |
A customer complaints 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 control on 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 |
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 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 1440x900 with 32-bit color. The display seems to be pixilated. What should you to correct the problem? |
Change the screen resolution to the native resolution of the monitor |
You have purchased 10 new notebook systems for your users. You are concerned that users will leave the system 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 computer |
You have purchased an LED monitor and connected it to the HDMI port on your computer using a HDMI cable. You configure the screen resolution to 1280x1024 with 32-bit color. The geometry of the images displayed on the screen appear to be distorted. What should you 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 a HDMI cable. You configure the screen resolution to 1280x768 with 32-bit color. The images displayed on the screen appear to be overly large. What should you to correct the problem? |
Set the display resolution to the native resolution of the monitor |