Chapter 6

Cathy is planning to purchase a new audio and video editing workstation to make computer training videos at work. In addition, she wants the ability to back up her large video files relatively quickly but not over the network to help preserve bandwidth. She does not exactly know or understand the type of devices she needs.What types of components would you recommend? (Select all that apply.)

Two 4TB SATA 3 Drives Correct. Cathy will need a lot of storage. Raw video footage uses a lot of storage capacity. Also because of their size, she will want to have fast access when loading large video files. 32 GB of DDR 4 RAM Correct. Video editing software requires a lot of RAM. Cathy needs as much RAM as her system supports. High-end sound card Correct. Cathy will want a high-quality sound output for the workstation. This will allow her to hear clearly everything recorded on the video. Blu-ray burner Correct. A Blu-ray burner will allow Cathy to transfer the video so that it can be played. On average, a 25GB Blu-ray disk can hold 135 minutes of HD video. eSATA storage device Correct. Since Cathy does not want to use the network to back up her large video files, an eSATA external storage device would be a welcome addition.

You are asked to install a new adapter card in 30 office computers at an existing branch location. Which of the following is NOT a necessary step in the process?

Verify the adapter card to be installed is ESD-resistant. Correct. You cannot verify that an adapter card is ESD-resistant or not susceptible to ESD (electro-static discharge) because all adapter cards are susceptible. Proper ESD precautions need to be followed, such as using an ESD wrist strap, to ensure the cards are not damaged. The adapter card will have typically been placed in a static-shielding when being transported from station to station in the manufacturing process, as well when placed in the final retail package.

You just started a new job at a media production company. On the first day, Kumar drops off a new 27 inch monitor in your office and recommends you use the DisplayPort connector. Why would he make such a recommendation?

(DisplayPort is compatible with HDMI, DVI, and VGA so the video cable is interchangeable. Incorrect. DisplayPort is not natively compatible with HDMI, DVI, or VGA. However, there are converters that can be used to connect a DisplayPort to any one of the other standards. The video quality will be limited to that of the lesser standard.)

David has a laptop that is having a problem with the video system. Initially you thought the problem might be the backlight, but in your research discovered it does not have a backlight. After additional troubleshooting you determine the laptop needs a new screen.What type of screen should you get for the laptop?

(LED Incorrect. LED screens do have a backlight. A LED-backlit LCD is a flat panel display that uses LED backlighting instead of cold cathode fluorescent lamp (CCFL) backlighting.)

Sarah needs to connect to a console port on an enterprise switch. Her laptop does not have the correct port. When she mentions this to her boss, he tells her that they have several older laptops in a closet with RS-232 ports.What type of connector does the laptop have?

A 9 pin two row D-shaped male connector Correct. A RS-232 is a serial connector. This connector is a 9 pin two row D-shaped male connector.

You buy a DVI cable to connect a monitor a friend gave you. You notice the connector on the cable has four extra pins, but the DVI port on the computer does not have them so you cannot use the cable. What are the four extra pins used for?

Analog video

Nick is working on a new graphic for a client and is having an issue with the color on his screen. The client wants the graphic to include a very bright red color, but Nick seems unable to find the right color on his screen. He seems to have the color perfect on the screen, but when he tries to print the graphic, the color seems to fade. He has checked the printer, and it works fine.What will help Nick see on the screen the color that he is printing?

Calibrate the display color. Correct. Nick can calibrate the display color in Windows. This will help him match the color to what is printed.

You install a new video adapter and update the drivers, but notice the icons have a distorted geometry.What could you do to fix the problem?

Change resolution Correct. The cause of the distortion is the resolution. If the LCD has a recommended resolution, use it, or use the highest resolution available.

You install a new peripheral, but it does not work. Then you remember about the drivers. Where can check to see if they were installed automatically?

Device Manager Correct. The Device Manager in Windows allow you to manage devices and their drivers. If you see a yellow triangle with an exclamation next to the device, it is an indication that it has not been properly installed or that the driver is missing.

Jordan, a junior technician, ordered hardware for facial recognition capabilities on every computer at work. Before the hardware was delivered, he was removed from the project to help upgrade the operating system on every computer. After a few months, he was finally able to get back to the facial recognition project. He installs the webcam, the adapter card, and the drivers that were included in the optical media. Issues are evident so he checks the Device Manager and does not see any issues. When Jordan asks a senior technician for help, the senior technician asks him one question.What did the senior technician ask Jordan?

Did you update the drivers? Correct. Download and install the drivers for the updated operating system is a reasonable first step to resolve issues with a particular I/O device.

Sherri has recently been injured. She is having a problem using her left hand and would like to use a stylus to move her mouse around the screen on her laptop computer.What type of I/O device can Sherri add to her system to allow a non-touch screen laptop to use a stylus to manipulate the screen?

Digitizer Correct. Sherri can add a digitizer to a monitor. She will connect it to the computer via a USB port and place the digitizer so that it can read the stylus. This will allow Sherri to use a stylus to manipulate the screen.

Jovi buys a high-end sound card for professional grade recording and playback. When he installs the card there seems to be a conflict so he disables the onboard audio using the Device Manager but that does not solve the problem. What else can Jovi do to overcome the problem?

Disable the onboard audio using the BIOS/UEFI. Correct. Disable the onboard audio through the BIOS/UEFI as it will render the device invisible to the Device Manager. Disabling the audio card through the Device Manager may not be enough to solve the problem.

Four years ago Faleka bought a custom computer with a mid-tier motherboard and a basic configuration option. During the last three months he has noticed the video quality seems to be gradually degrading. To troubleshoot, he uses a known-good replacement monitor and video cable, but the problem persists.What would be a reasonable course of action for Faleka to take?

Disable the onboard video port and install a new graphics card.

Genesis is learning about computers. She installs a digitizer along with the corresponding software, but the tablet is not recognized by the operating system. She calls you for help and you explain the difference, or similarities, between drivers and apps as it pertains to peripherals in general. What do you tell her?

Drivers control the hardware. Apps allows users to interface with the features of the peripheral. Correct. Drivers control the hardware, and they are written for the specific operating system where the device is to be installed. Apps are programs that allow the user to perform a specific function such as writing a document, playing a game, or drawing an image.

Under certain conditions, you may hear a whine from the power supply when you first power up the system. However, if you hear a whine coming from the video card, how can you fix it?

Ensure the 6-pin or 8-pin power cord is connected to the card.

Bola is upgrading some peripherals devices connected to his computer. He buys a new webcam, gaming keyboard, and a card reader.What approach should he take when installing the peripherals?

Install one peripheral at a time, reboot, and make sure it works before proceeding. Correct. Installing one device at a time allows you to troubleshoot one specific issue at a time if the installation is not successful. Refer to the documentation from the manufacturer for the proper installation procedure.

Ron is using an older computer with only one RAM module to experiment with the installation of various Windows operating systems. After the first installation he checks the Device Manager and notices a yellow triangle next to the entry labeled SM Bus Controller.What should Ron do to fix this problem?

Install the chipset drivers for the motherboard. Correct. The SM Bus Controller (System Bus Controller) is used to, among other things, monitor the voltage and temperature of the motherboard. It is part of the chipset which is the glue that connects the CPU to the other components.

You are installing a webcam in the screen bezel of your laptop. Prior to disassembling the laptop, what other devices in the screen bezel should you be aware of? (Select all that apply.)

Microphone Correct. The microphone on most laptops is located near the webcam in the screen bezel. You should be aware of the cable and connector when working in the laptop bezel. WI-FI antenna Correct. The WI-FI antenna cables are in the screen bezel. There are usually two such cables, and they connect to the Wi-Fi adapter card on the motherboard.

The video on your laptop needs to be updated. You have researched online, and according to the manufacturer, you can install a new video card in your laptop.What is the most likely slot connection you will use to install a new video card in your laptop?

Mini PCIe Correct. You want to use the PCIe bus on your laptop for the new video card. PCIe 16x is the standard slot used by all video cards.

Today when Dylan turned on his computer, he noticed that the monitor was very dim. He could still see the desktop icon and text. He turned the brightness all the way up, but that did not correct the issue. Dylan also checked to make sure the Power Options brightness was not turned down, causing the screen to go dim. He connected a different monitor, and the screen was fine.What caused the screen to be very dim?

Monitor backlighting. Correct. The backlight on the monitor can go bad, and when it does, the monitor will look very dim. Dylan can replace the backlight, but it is generally more expensive than replacing the monitor.

Jose calls you at the help desk because he is having a problem logging on to his laptop computer. After several unsuccessful attempts to enter his password, he asks you to reset the password because he must have forgotten it. You reset his password, and he types it, but again the computer rejects it. Jose assures you that he typed the correct username and password. You ask him what type of computer he is using, and he tells you a laptop.What might be the problem with Jose's computer?

Num Lock key is on. Correct. Laptops use this key to toggle between the keys interpreted as letters and the keys interpreted as numbers. Most laptops have a Num Lock indicator light near the keyboard.

Ulysses has a laptop with a very dim monitor. He connects an external monitor, and it works just fine. How can Ulysses fix the problem?

Replace the inverter board.

Terry is having a problem with his computer screen that connects to the onboard HDMI port. His computer does not have a video card, but he notices it supports the DisplayPort standard. He buys a monitor, connects it using the DisplayPort, but it does not work. What is the most likely cause of the problem? Select two.

Terry forgot to power on the monitor, so it is not receiving power. Correct. This could be a problem. If the monitor is not turned on, it will obviously not render the input video signal. He needs to enable the DisplayPort connector via the BIOS/UEFI. Correct. If the DisplayPort connector is not enabled, no signal will be sent to the monitor.

After Sandy and a friend troubleshoot her laptop they determine the LCD screen needs to be replaced. Sandy gets tired of waiting on her friend, who knows more about computers, and decides to do it herself by watching videos online. In the process, she accidentally breaks one of the two cables that wrap around the screen and connect to the mini-PCIe card inside the laptop.What is the impact of this mishap?

The laptop will lose its Wi-Fi capabilities.

Charanya decides it is time for an upgrade. She buys a new computer, a used 17-inch LCD monitor at a thrift shop, as well as a VGA splitter for screen duplication purposes and compatibility with the original VGA monitor. When she plugs in the monitors, the image on the LCD monitor is blurry. What are possible explanations for, and/or how could she rectify, this condition? Select two.

The monitor is not set to the native or recommended resolution hampering the image quality. Correct. If the monitor is not set to the recommended or native resolution, image blur could result. Upgrading the VGA cable to a DVI, HDMI, or DisplayPort standard will improve the image quality. Correct. Image blur is possible if using a VGA cable with an LCD monitor. A digital connection such as DVI, HDMI, or DisplayPort will help render better image quality.

Damion recently did an update to his computer and added a new video card. After the update, Damion decided that he would like to play his favorite game. While he was playing the game, the system locked up. He restarted the computer and did not have any issues until he tried to play the same game, at which point, the computer locked up again.What might be the problem with Damion's computer? (Select all that apply.)

Video card device drives need to be updated. Correct. If the driver needs to be updated, the game could freeze during game play. Damion can update the driver by downloading it from the manufacturer's website. Most high-end video cards also have a downloadable program that will help to keep the driver updated. Game is not compatible with video card. Correct. If the video card is compatible with the DirectX version for the game, then Damion should be able to play the game. He will not be able to start the game if the video card is not compatible with the DirectX version in the game. Version of DirectX is out of date. Correct. The DirectX version may be out of date and cause the computer to crash or freeze during the game play. DirectX is a collection of application programming interfaces (APIs) for handling tasks related to multimedia, especially game programming and video, on Microsoft platforms.

You work at a large department store selling computer products. Iwina walks in and wants to buy a wireless router. She explains that the media streaming device she ordered online supports a transmission speed of up to 200 Mbps. What type of router should you recommend?

Wi-Fi 802.11n Correct. 802.11n supports a maximum speed of 600 Mbps with a range of up to 70 meters.

Patrick wants you to repair his laptop LCD screen. Patrick insists that it was not his fault, but sometime during the night, the laptop fell off his desk, and now the screen is broken. During disassembly of his laptop, you see a mini-PCIe card with a black cable and a white cable wire connected that appear to go into the screen bezel.What is the function of the two wires?

Wi-Fi antenna Correct. The wires are the antennas for the Wi-Fi card. Wi-Fi antennas are placed around the screen in the bezel. The wires are then run to the Wi-Fi adapter on the motherboard.

Stephen has an older monitor that he uses for presentations. Recently, Stephen has noticed that a certain spot on the monitor does not change when he shows his presentations. The spot does not display the colors and stays dark when the screen is white.What might be the problem with Stephen's video issue?

dead pixel

Bayley wants to connect a new external hard drive to his Windows PC. He wants the fastest connection type available because he plans to edit video directly to and from the external hard drive.Which connection type should Bayley use to get the fastest connection possible?

thunderbolt3 Thunderbolt 3 max speed is 40 Gbps.