Mobile Devices (4) Flashcards
A guest presenter plugs an external projector into his laptop using the VGA port on the back of the laptop. He then uses the Fn key and his video toggle switch; the projector displays his presentation, but his laptop screen goes dark. What should he do if wants to see the presentation on both the projector and his laptop?
Install a second video driver and then use the video toggle key to switch the video output on both screens
Unplug the projector and plug it back in to synchronize it with the laptop
Press the video toggle key again until the presentation is shown on both screens
Press the video toggle key again until the presentation is shown on both screens
Because of the much smaller space available for keys, some laptop keys are consolidated into special multifunction keys. These keys are accessed through the standard keys by using a special function (Fn) key. Nearly every laptop has a video connector on the back or the side to plug in an external monitor or a projector. You will need to use the video toggle key to get this external port to work. Usually there are three or four states: laptop only, external output only, duplicate, or extend the desktop (some models won’t extend the desktop)
You need to replace a failed motherboard in a laptop computer. Which of the following components are most likely integrated into the motherboard? (Choose two)
Video card
Network card
Hard drive
RAM
Video card
Network card
Most laptop motherboards have integrated components to provide different functions. It is common to have video, audio, and wireless networking circuitry built into the motherboard. Hard drives and memory are generally replaceable
A user has a laptop that is intermittently locking up. Initial diagnostics indicate that the processor is overheating. What can you do to try to remediate the issue? (Choose two)
Leave the case open while the system is running to allow for better airflow and cooling
Lower the CPU voltage in the system BIOS
Lower the CPU clock speed in the system BIOS
Run the laptop on AC power instead of battery power
Lower the CPU voltage in the system BIOS
Lower the CPU clock speed in the system BIOS
To combat heat, you can either slow the processor down (run it at a lower speed) or give it less juice (run it at a lower voltage). Most of the time, this is configured in the system BIOS. For example, many Intel processors have SpeedStep technology to slow the processor down to produce less heat, and they may also have adaptive thermal management
A client has an older Windows 7 laptop with an integrated video card. The system seems to boot but produces no video, even with an external monitor hooked up. What can you do to fix this?
Add an external USB video card and connect the monitor to it
Remove the old video card, and replace it with a new internal video card
Replace the motherboard
Replace the motherboard
If the integrated video card fails, you’re looking at a motherboard replacement. Some laptops do have a replaceable video card. If it fails or if you choose to upgrade it, the procedure will probably resemble replacing system memory
You are upgrading a laptop with a Mini PCIe card. What type of connector does Mini PCIe use?
52-pin
78-pin
144-pin
52-pin
Mini PCIe cards use a 52-pin connector. Cards are 30 mm wide
Which of the following are ways to input information or commands into Google Glass? (Choose two)
Touch screen
Touch pad
Voice command
Virtual keyboard
Touch pad
Voice command
Google Glass has a touch pad on the side of the device that lets users scroll through menus and make selections. Other inputs can be made by voice command through a microphone or other built-in sensors such as the accelerometer, gyroscope, magnetometer, proximity sensor, and ambient light sensor
Which of the following wireless communication methods are the least susceptible to hacking? (Choose two)
Wi-Fi
IR
Bluetooth
NFC
IR
NFC
Of the wireless communication methods, infrared (IR) and near-field communication (NFC) are the hardest to hack. IR communication is limited to about 1 meter, with a viewing angle of about 30 degrees. You would know if someone was trying to intercept the signal. NFC is limited to about 4″ (10 cm). It would be pretty obvious if someone were trying to intercept that signal
Of the laptop LCD technologies, which consumes the least amount of power?
LED
IPS
TN
TN
There are two types of LCD technologies listed in the exam objectives: TN and IPS. Twisted nematic (TN) is the older of the two, and it is relatively inexpensive and low power. The issue with TN LCD screens is that when you start viewing them at wider angles, the picture quality suffers greatly. In-Plane Switching (IPS) LCD monitors provide better color representation as well as wider-angle viewing, but they tend to be a bit more expensive and have somewhat slower response times
What types of networking will smart cameras often have built into them? (Choose two)
Bluetooth
IR
RJ-45
802.11b/g/n
Bluetooth
802.11b/g/n
Smart cameras have built-in wireless network connectivity for easy picture and video transfers. Many will include Wi-Fi, Bluetooth, and NFC
A user has brought his laptop to you because the screen is intermittently flickering. Which display component is most likely causing this?
Backlight
Screen
Inverter
Inverter
If you are having problems with flickering screens or dimness, it’s more likely that the inverter is the problem and not the backlight itself
Which of the following wireless communication types has a maximum distance of 1 meter and requires line of sight?
NFC
Bluetooth
IR
IR
Infrared (IR) is a short-distance, line-of-sight, point-to-point communication method. It’s usually used to transfer small amounts of data from one device to another. The maximum functional distance of IR in mobile devices is about 1 meter, with a viewing angle of about 30 degrees
What is the likely type of Wi-Fi antenna connector you will find on a laptop?
SMA-female-RP
SMA-male-RP
N-female
SMA-female-RP
The overwhelming majority of Wi-Fi antenna connectors for indoor rated antennas found on the device are type SMA. On the device will be a SMA-female. What makes a connector “male” is the center pin and threads on the inside, while a “female” connector will have threads on the outside
A user needs ports for external device in addition to what his laptop is capable of connecting. The user would like to have these devices available even without the laptop. What device provides that additional connectivity without the laptop?
Docking station
Port replicator
KVM switch
Port replicator
A port replicator is an attachment that provides the same ports or additional ports as a laptop. In addition, the port replicator does not require the laptop in order to offer the connectivity to the other devices
A warehouse manager at a factory is required to supervise productivity while walking and taking notes. She finds the laptop awkward to type on while walking but does not want to have to use two devices. What would you recommend she do?
Get a small tablet to synchronize with the laptop
Get a laptop with a rotating or removable screen
Get a smaller laptop
Get a laptop with a rotating or removable screen
Laptops with a rotating or removable screen allows the touch screen to function like a tablet. This would allow the warehouse manager to take notes with a tablet while keeping the laptop for her desk
After enabling your device for communicating using the IEEE.802.15.1 standard, what is the next step?
Entering the PIN code
Finding a device for pairing
Enter the IMAP server and port
Finding a device for pairing
The IEEE standard 802.15.1 is commonly known as Bluetooth. The first step in using Bluetooth after enabling the protocol is finding a device with which to pair
