220-1201 Mobile Device Accessories — Timed 15 Questions

Question 1

A user wants to connect their laptop to a 4K TV for a movie marathon. They have a USB-C port on the laptop but the TV only has HDMI. Which accessory is required?

Accepted Answer

A USB-C to HDMI adapter.. A USB-C to HDMI adapter or cable is needed to convert the signal from USB-C to HDMI. This allows the laptop to output video to the TV. The correct answer is a USB-C to HDMI adapter.

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A USB-C to DisplayPort adapter.

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A USB-C to VGA adapter.

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A USB-C to Ethernet adapter.

Question 2

A user reports that their laptop's external monitor connected via USB-C to HDMI adapter flickers intermittently. The adapter works fine with other devices. What is the most likely cause?

Accepted Answer

The USB-C port on the laptop has a loose connection.. Intermittent flickering often points to a loose or damaged cable or port. Since the adapter works elsewhere, the issue is likely with the laptop's USB-C port or the cable connection. The correct answer is a loose connection at the laptop port.

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The HDMI cable is defective.

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The monitor's refresh rate is set too high for the adapter.

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The laptop's graphics driver is outdated.

Question 3

A small business owner wants to use a smartphone as a point-of-sale (POS) terminal for credit card payments. They ask which accessory is essential for this setup. What should you recommend?

Accepted Answer

A magnetic stripe reader that plugs into the headphone jack.. A card reader that connects to the smartphone via the headphone jack or Bluetooth is essential for processing credit card payments. This accessory allows the phone to read the magnetic stripe or chip. The correct answer is a dedicated card reader.

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A portable Bluetooth speaker for transaction alerts.

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A rugged case to protect the phone from drops.

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A high-capacity power bank for extended use.

Question 4

A customer wants to connect a Bluetooth keyboard and mouse to their tablet for a presentation. They ask which accessory is needed to ensure both devices work reliably from across the room. What should you recommend?

Accepted Answer

A Bluetooth extender or repeater to boost signal strength.. A Bluetooth adapter is not needed if the tablet already has Bluetooth, but a Bluetooth extender or a USB hub with Bluetooth can improve range. However, the most straightforward answer is that a Bluetooth adapter (if the tablet lacks built-in Bluetooth) is essential, but since most tablets have it, a simple Bluetooth keyboard and mouse set will work. The correct answer here is that a Bluetooth adapter is not required; the tablet's built-in Bluetooth is sufficient, but for range, a Bluetooth extender can help.

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A USB-C hub with Bluetooth functionality to extend range.

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A Bluetooth adapter plugged into the tablet's charging port.

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A wireless dongle that connects both keyboard and mouse via a single receiver.

Question 5

A user reports that their smartphone's wireless charging pad stops charging after a few minutes, and the phone gets very hot. The phone supports Qi wireless charging. The technician tests the pad with another phone and it works fine. What is the most likely cause?

Accepted Answer

The phone case contains metal or magnetic components that interfere with charging.. Since the charging pad works with another phone, the issue is with the user's phone. A thick case, especially one with metal or magnetic components, can interfere with wireless charging and cause overheating. The correct answer is a case with metal or magnetic parts.

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The phone's battery management system is faulty.

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The phone's wireless charging coil is misaligned with the pad.

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The wireless charging pad is not Qi-certified.

Question 6

A technician is setting up a new tablet for a field worker who needs to capture signatures from customers. The tablet has a standard USB-C port. Which accessory is most appropriate for this task?

Accepted Answer

A capacitive stylus with a fine tip.. A stylus with a fine tip is ideal for capturing signatures accurately on a touchscreen. Capacitive styluses are common for this purpose. The correct answer is a capacitive stylus, as it provides precision.

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A Bluetooth keyboard for typing notes.

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A USB-C to HDMI adapter for external display.

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A screen protector to prevent scratches.

Question 7

A user complains that their smartphone's screen protector has started peeling off at the edges after a few weeks. They installed it themselves. What is the most likely cause of this problem?

Accepted Answer

The user did not clean the screen properly before installation, leaving dust or oil.. Improper installation, such as not cleaning the screen thoroughly or misalignment, is the most common cause of screen protector peeling. Dust or oil under the protector prevents proper adhesion. The correct answer focuses on installation technique.

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The screen protector is of low quality and does not fit the device model.

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The smartphone case is too tight and pushes the protector off.

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The device's screen has a factory oleophobic coating that repels the adhesive.

Question 8

A technician is configuring a tablet for a delivery driver who needs to navigate and take photos of packages. The driver complains the tablet's screen is hard to see in direct sunlight. Which accessory would best address this issue?

Accepted Answer

An anti-glare screen protector with a matte finish.. An anti-glare screen protector reduces reflections and improves outdoor visibility. Matte finishes diffuse light, making the screen more readable in bright conditions. The correct answer is an anti-glare screen protector.

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A high-brightness screen protector that boosts luminance.

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A privacy screen filter to reduce viewing angles.

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A sunshade hood that attaches to the tablet case.

Question 9

A user reports that their smartphone battery drains quickly and the device feels warm to the touch, especially when using wireless charging. They are using a third-party wireless charger. What is the most likely cause of this issue?

Accepted Answer

The wireless charger is not properly matched to the device's charging standard, causing inefficient power transfer.. The correct answer is that the wireless charger is not properly matched to the device's charging standard, causing inefficient power transfer and excess heat. This is a common issue with third-party chargers that lack proper certification. Using a charger designed for the device's specific wireless charging standard resolves the problem.

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The smartphone battery is defective and needs replacement.

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The device's operating system needs an update to support wireless charging.

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The user is using a case that is too thick for wireless charging.

Question 10

A technician is troubleshooting a laptop that will not charge via its USB-C port. The laptop uses a USB-C power adapter that works with other devices. The technician tests the port with a known-good USB-C flash drive, and it is not detected. What is the most likely issue?

Accepted Answer

The USB-C port is damaged or has bent pins.. Since the USB-C port fails to detect a flash drive and also does not charge, the port itself is likely damaged. This could be due to bent pins or internal damage. The correct answer is a damaged USB-C port.

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The laptop's battery is completely dead and needs replacement.

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The power adapter is not outputting enough wattage.

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The laptop's BIOS settings have disabled the USB-C port.

Question 11

A marketing team uses tablets to capture customer signatures on glass screen protectors. They report that the capacitive stylus often skips or fails to register strokes near the edges of the screen. After testing, you find the issue persists even without the protector. Which accessory should you recommend to improve stylus precision?

Accepted Answer

A fine-tip active stylus. A fine-tip active stylus uses a digitizer layer for precise input, unlike passive capacitive styluses that rely on conductivity and can be inaccurate. A screen protector or Bluetooth keyboard won't address stylus accuracy, and a different capacitive stylus may still have the same issue.

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A tempered glass screen protector with an oleophobic coating

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A Bluetooth keyboard

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A different passive capacitive stylus with a larger tip

Question 12

A customer wants to use a portable projector with their smartphone for impromptu presentations. The smartphone has a USB-C port that supports DisplayPort Alt Mode. Which accessory will enable this connection?

Accepted Answer

A USB-C to HDMI adapter. A USB-C to HDMI adapter leverages the smartphone's DisplayPort Alt Mode to output video to the projector's HDMI input. A USB-C hub with HDMI would also work, but a direct adapter is the simplest. A wireless adapter or USB-C to USB-A cable cannot carry video signals.

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A USB-C to USB-A adapter

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A Bluetooth audio receiver

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A wireless HDMI dongle

Question 13

A field technician frequently uses a ruggedized tablet outdoors for data collection. They complain that the screen is hard to read in direct sunlight. Which accessory would best improve screen visibility without adding significant bulk?

Accepted Answer

An anti-glare screen protector. An anti-glare screen protector reduces reflections and improves readability in bright environments. A privacy filter, while reducing glare, also restricts viewing angles, which is not the primary need. A portable monitor or external battery do not address screen readability.

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A privacy filter

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A portable external monitor

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An external battery pack

Question 14

A user complains that their wireless Bluetooth earbuds frequently disconnect during calls when their smartphone is in their pocket. The earbuds work fine when the phone is on a desk. Which accessory or configuration change is most likely to resolve this issue?

Accepted Answer

A Bluetooth neckband style headset. Bluetooth signal can be blocked by the human body, especially when the phone is in a pocket. Using a Bluetooth neckband or headset with an external antenna can improve signal reception. A Bluetooth signal booster or case may help, but a neckband physically positions the receiver closer to the phone. Wi-Fi interference is less likely given the scenario.

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A Bluetooth signal booster app

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A metal phone case

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A Wi-Fi analyzer to change router channels

Question 15

A user connects a USB-C docking station to their laptop and finds that the external monitor works, but the Ethernet port on the dock does not provide network connectivity. The laptop's built-in Wi-Fi works fine. Which is the most likely cause?

Accepted Answer

The docking station's Ethernet driver is not installed. USB-C docks often require driver installation for Ethernet functionality. If the driver is missing, the network adapter won't be recognized. A faulty cable or disabled port could also cause issues, but driver issues are common. The monitor working confirms the dock's power and video pass-through are functional.

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The Ethernet cable is faulty

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The USB-C port on the laptop is damaged

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The laptop's Wi-Fi is interfering with Ethernet