COMPTIA A+ - Test Questions

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

Which feature makes it possible to close some notebook computers and still use the touchscreen? 180 degree rotating touchscreen Removable touchscreen Dual display External touchscreen

180 degree rotating touchscreen

You need to replace the hard disk in your laptop computer. Which of the following hard drive sizes would you likely choose for the laptop? 1.25" 2.5" 3.5" 5.25"

2.5"

When a user rotates a mobile device, the operating system changes the screen orientation so that the display remains upright to the user. Which of the following technologies is uses to detect this device movement? (Select TWO). Geotracking Gyroscope GPS Accelerometer Wi-Fi

Accelerometer Gyroscope

The integrated mouse, the small monitor, and the compact nature of the keyboard are impeding your work when you use your notebook, but you still need a system that is portable if necessary. You currently own a spare USB mouse and keyboard, as well as a nice monitor. Which option will give you the portability you need while at the same time save money and not impede your work? Buy a docking station for your notebook. Switch to a tablet device. Connect an external keyboard, mouse, and monitor when necessary. Buy a small, lightweight desktop computer. Buy the biggest notebook possible so you don't feel so confined.

Buy a docking station for your notebook.

You need to replace the video card in a laptop. What is the first step? Remove the display wires if the video card is integrated into the motherboard. Remove the keyboard. Find a service manual with correct disassembly procedures. Remove the access panel at the bottom of the laptop. Remove the bezel.

Find a service manual with correct disassembly procedures.

After arriving in a new city today, a traveling sales team member calls you stating that his wireless connection no longer works. He has checked the wireless configuration, and he knows it to be correct because it was working yesterday. What should you do first? Have him verify that the wireless card's hardware switch is in the On position. Have him manually configure the wireless card to use only 802.11b. Have him update the drivers for the wireless card. Have him purchase a USB wireless card to use until you can check the problem yourself.

Have him verify that the wireless card's hardware switch is in the On position.

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. LCD display with TN panel Plasma display with no motion blur OLED display with wide-angle viewing LCD display with IPS panel

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? Plasma display with no motion blur LCD display with TN panel OLED display with wide-angle viewing LCD display with IPS panel

LCD display with TN panel LCD displays with TN panels are the most common technology used by LCDs. TN panels have very good response times (1-5 ms) and refresh rates (60-144 Hz), so they are great for PC gaming. They are more affordable and have faster response times than LCDs with IPS panels, use far less power than a plasma display, and are far more affordable than OLED displays.

Which of the following is true of modern LCD monitors regarding backlighting? Red, green, and blue light provide the least expensive type of backlighting technology. LCD monitors have small cells containing electrically-charged ionized gas that don't need backlighting. Cold cathode florescent (CCFL) are used for backlighting. LEDs are used to backlight the screen.

LEDs are used to backlight the screen.

A landscaping company's employees receive payment for their services using a credit card reader that physically attaches to an Apple mobile device. Which of the following connection types is being used? Lightning IR NFC Bluetooth

Lightning

Which type of interface is typically used for internal wireless networking cards in laptops? Firewire Mini-PCI USB ExpressCard PCI

Mini-PCI

A portable computer connected to a printer with an infrared interface works fine inside your office. However, when you go outside, it works sporadically. Which of the following would BEST resolve this issue? (Select TWO). Block direct and reflected sunlight from the pathway between the PC and the printer. Install a Gamma Ray Spectrometer (GRS) to shield the interface. Install Ferrite shielding on both the PC and printer power cords. Move the printer closer to the computer. Set the environment setting to outdoor mode in the BIOS.

Move the printer closer to the computer Block direct and reflected sunlight from the pathway between the PC and the printer.

Which of the following battery types has the greatest need to be completely drained before being recharged? Lithium ion (LIB) Nickel cadmium (NiCad) Carbon Nickel metal hydride (NiMH)

Nickel cadmium (NiCad)

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? CRT OLED Plasma LCD

OLED

Which of the following is an extra button or knob on a laptop keyboard that moves the mouse cursor? Touch pad Digitizer ExpressCard Pointing stick

Pointing stick

You're troubleshooting a notebook system that uses a digitizer pad and stylus for user input. The user has complained that the digitizer pad registers stylus registers taps about one inch to the right of where the taps actually occur. Which of the following actions would MOST likely fix this issue? Replace the digitizer pad. Replace the stylus. Remove any scratches from the digitizer pad. Hold the stylus at an increased angle. Recalibrate the digitizer pad.

Recalibrate the digitizer pad.

A technician is tasked with replacing an internal laptop hard drive. Which of the following hard drive standards would be of MOST concern when selecting a replacement? The hard drive's form factor The hard drive's storage capacity The hard drive's read and write speeds The hard drive's minimum voltage requirements

The hard drive's form factor

You're troubleshooting a malfunctioning notebook computer system. The user has indicated that the LCD screen suddenly became dark and difficult to read while he was downloading a large file through his wireless network card while the system was plugged in at his desk. You've checked the system and determined that the backlight has stopped working. Which of the following is the MOST likely cause? (Select TWO). The inverter in the LCD assembly has malfunctioned. Malware was installed as part of the download that targeted the backlight circuitry. The cold cathode fluorescent lamp has burned out and needs to be replaced. The extended download placed high demands on the system DC power, causing the BIOS to shut off the backlight. The wireless network card is emitting radio signals that interfere with the backlight, causing it to stop functioning.

The inverter in the LCD assembly has malfunctioned. The cold cathode fluorescent lamp has burned out and needs to be replaced.

When a presenter at a conference connects a laptop to a projector, the projector mirrors the laptop's display. The presenter would like it to extend the laptop's desktop instead. Which of the following options is the QUICKEST way to make the change? Disconnect and reconnect the laptop to the projector. Toggle the dual display function key on the laptop. Change the dual display settings in the operating system's control panel. Select the proper video source from the projector's settings menu.

Toggle the dual display function key on the laptop.


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