Computer Maintenance Unit 6 Supporting I/O Devices

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?

• Windows has generic drivers so connect all devices at once and then reboot.

• Install all the drivers first, connect the peripheral devices, then reboot the system.

• Install one peripheral at a time, reboot, and make sure it works before proceeding.

• Connect all peripheral devices first, install the drivers, and then restart the system.

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?

• Remove the existing onboard video card and install a new one.

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

• A wireless router is too close to the monitor causing interference.

• Four years is a long time, so the video drivers need to be updated.

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?

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?

• Apps and drivers are essentially the same, but apps have bloatware that is not truly necessary.

• Apps control the hardware. Drivers allows users to interface with the features of the peripheral.

• Drivers control the hardware. Apps allows users to interface with the features of the peripheral.

• Apps and drivers coordinate the communication between the operating system and hardware.

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 natively interfaces with the VGA connector offering a great deal of flexibility.

• DisplayPort uses an analog signal, so it is less susceptible to electro-magnetic interference.

• DisplayPort is compatible with HDMI, DVI, and VGA so the video cable is interchangeable.

• DisplayPort offers the highest data rate and is capable of delivering digital video and audio.

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 was defective to begin with so she should return it right away and buy a new one.

• The monitor is not set to the native or recommended resolution hampering the image quality.

• Upgrading the VGA cable to a DVI, HDMI, or DisplayPort standard will improve the image quality.

• A 17-inch monitor is too small to support the higher resolution capabilities of new computers.

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?

• Backup important data that has not been backed up.

• Verify the adapter card to be installed is ESD-resistant.

• Verify the card fits into an empty expansion slot.

• Verify the device drivers are available for the OS.

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.

• Upgrade the power supply to one that can deliver more power.

• Replace the video card; this is an indication of impending failure.

• Verify the video card is properly seated in the expansion slot.

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?

• Digital audio

• Digital video

• Analog audio

• Analog video

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 802.11b

• Wi-Fi 802.11a

• Wi-Fi 802.11g

• Wi-Fi 802.11n