Unit 4: Peripheral 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

What is the maximum data transfer speed for USB 3.0 devices?

5Gbps

Ida, one of the employees in the sales department, needs a way to display her PowerPoint sales presentation to a large group of potential customers. She has asked you to set up the conference room in preparation for her presentation. You will need to purchase a display system for the conference room. Which of the following display systems would be the BEST to purchase?

A large screen and a projector

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 decided to install a new Ethernet network adapter in your Windows 10 desktop computer. After installing the card and booting to Windows, you notice that you have no network connection. After looking in Device Manager, you see that the new network card was detected, but Windows doesn't know what it is. After doing a quick search on the internet, you find what looks like the correct driver and install it. A reboot of Windows is performed, but almost immediately after logging on, your computer crashes. Thinking this must be a fluke, you reboot again with the same result. Which of the following is the BEST tool to get Windows to load properly?

Boot to Safe Mode and uninstall the network driver.

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. Which of the following BEST describes the action you should take 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. Which of the following solutions is MOST likely to fix this 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 is the BEST to take next?

Check the monitor's brightness and contrast settings using the controls on the monitor.

You've just installed a new video card in a user's Windows workstation. When the system is powered on, the screen is blank. You have checked the video cable and verified it is installed correctly. What should you check NEXT?

Check to make sure the video card is correctly installed on the system board.

You work as the IT administrator for a small news station. Jill, an employee in building 2, works in the audio/video editing department and would like to increase her productivity. For example, she would like to be able to run multiple programs simultaneously and be able to compare video clips side-by-side. Which of the following configuration changes would provide the BEST solution for Jill?

Configure Jill's computer to have dual monitors.

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

Alice recently purchased a new cell phone. After her vacation, Alice wanted to transfer her holiday photos to her computer to do some touchup work before sending the pictures to her children. When Alice attached her phone to her computer, she saw that Windows detected her phone and tried to load the applicable software to give her access to her phone. Unfortunately, after trying for several minutes, Windows displayed a message indicating that it was unsuccessful. When Alice explored her available drives, her phone was not listed. Which of the following would be the BEST administrative tool to help Alice gain access to her phone?

Device Manager

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

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. Since the installation, the system frequently crashes when you try to access the new device. Which of the following steps would MOST likely resolve this issue?

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. When the system is powered on, the screen is displayed in 16 colors at 640x480 resolution. Which of the following will BEST 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 are a trainer for your company and often teach courses in a classroom located on-campus or in a hotel conference room. In your office, which is separate from the classroom, you have two external monitors connected to your laptop, and you are able to display different content on each monitor. However, when teaching, you only have your laptop and a projection unit. To make teaching easier, you want the same content to show on both the laptop monitor and the projection screen. Which of the following multiple display options would be BEST to select when teaching?

Duplicate these displays

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 terms describes a PC card that you can insert and remove without rebooting the computer?

Hot swappable

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. Which of the following are the three types of system resources that are USUALLY automatically assigned?

I/O address, IRQ, DMA channel

While troubleshooting a computer, you need to view a list of all IRQs and the device using each IRQ. Which of the following options would BEST allow you to accomplish this task?

In Device Manager, click View > Resources by type

Your monitor is displaying images in strange colors. Which of the following is MOST likely the solution to this problem?

Increase the color depth.

For which type of device will you typically install the driver before you connect the device to your system?

USB Devices

You need to connect a new USB scanner to the USB port on your computer. However, the first time you plugged the scanner in, it was not recognized. What should you do?

Install the scanner drivers and then connect the scanner to the USB port and complete the Add a Device wizard when it pops up.

Why are plasma displays smaller than 32 inches not typically sold?

It would be too cost prohibitive to manufacture plasma screens under 32 inches.

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 of the following devices BEST allows this type of setup?

KVM

You are an IT professional that works with home users. One of your customers works from home and uses multiple Windows computers as well as an Apple Mac computer. Your customer wants to be able to switch between his computers without changing the keyboard and monitor currently in use. Which of the following devices would BEST facilitate sharing his monitor and other input devices with all of his computers?

KVM Switch

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 of the following types of displays will MOST likely meet these needs?

LCD display with IPS panel

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 of the following types of displays will MOST likely 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 are trying to connect a new USB device to your computer. You install the driver and then connect the device to an open USB port. The device does not work. Which of the following troubleshooting steps is the BEST to try first?

Make sure the USB device is plugged in properly.

A company is purchasing new laptops for their graphic artist division. Which of the following display technologies provides better contrast and deeper blacks, resulting in better picture quality?

OLED

Lloyd works for a graphic design company. He needs a monitor that accurately represents colors. Lloyd's monitor recently failed, and you have been asked to purchase a new one. You have been asked to find a monitor with a fast pixel refresh rate, low energy consumption, and very accurate colors representation. Which of the following types of display devices will BEST meet the requirements requested?

OLED

Device manufacturers are constantly finding bugs, vulnerabilities, or better ways for their devices to communicate with the operating system. Because of this, which of the following is the BEST practice to do before installing a new device?

Obtain the latest driver from the manufacturer's website.

After using your LCD monitor for about three months, you notice a small black dot in one area of the screen. Regardless of what is shown on the monitor, the dot remains the same color and in the same location. Which of the following is the BEST method for removing the black dot from the monitor?

Play a video designed to fix dead pixels.

You have just installed several devices to a computer at once, but now the computer fails to boot properly. Which of the following troubleshooting steps is the BEST to try first?

Remove all of the newly added devices and install them one at a time.

Anna has been backing up her data on a hot swappable drive mounted in an external hard drive docking station. This docking station holds two drives. Anna would like to exchange one of the drives with a drive of higher storage capacity. Which of the following is the BEST method for replacing the drive?

Remove and replace the drive after using the Safely Remove Hardware feature to shut down the device.

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. Which of the following troubleshooting steps is the BEST to try 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. Which of the following will MOST likely fix this problem without requiring a hardware upgrade?

Set the visual effects for best performance.

Susan works in the research and development department. She has recently purchased a large high-speed external drive and has attached the drive to her computer using a USB cable. Her drive requires a minimum bandwidth of 400 Mbps and at least 900 milliamps (mA) to function. Although the correct drivers are installed, the drive is not functioning. To troubleshoot the problem, she has connected her drive to her coworker's computer where the drive functions properly. No additional cables are required for this drive. Which of the following is the MOST likely reason Susan's external hard drive is not working?

Susan has connected her drive to a USB 2.0 port, which does not have enough power for her drive

The marketing department has hired a new employee. Prior to the new employee's first day at work, you have set up and configured a new laptop computer. The computer and all of the peripherals were purchased from the same vendor. After the new employee begins work, you receive a phone call stating that the wireless mouse is not working. Which of the following is the MOST likely reason the mouse isn't working?

The USB mouse receiver is not plugged into the computer.

You have installed a device in your system and the system does not recognize the device. Which of the following BEST describes why the device was not discovered?

The device does not support plug and play.

Your company has just upgraded your laptop computer. After receiving your new computer, you plug your external USB 2.0 hard disk into your new USB 3.0 port. Which of the following is the MOST accurate statement regarding how this device will function?

The device will work, but will only transfer at USB 2.0 speeds.

Your company has decided to use only SATA drives in their systems. 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 laptop computer and allows the user to control the cursor with a finger?

Touchpad

Which of the following is considered an input device?

Touchscreen

You are an IT technician for your company. As part of your job, you must manage and support a wide variety of devices. Which of the following is the MOST common interface for peripheral devices?

USB

Which of the following standards provides data transfer rates up to 480 Mbps with a maximum cable length of 5 meters?

USB 2.0

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.