CompTIA A+ Core 1 · Domain 1 · 13% of exam

Mobile Devices

Drill 20 practice questions focused entirely on Mobile Devices for the CompTIA 220-1201 exam. Tap an answer for instant feedback and a full explanation — no sign-up, always free.

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Question 1 of 20

A user brings a personal smartphone to the office and needs to configure their corporate email account manually because auto-discovery failed. IT wants incoming messages to remain stored on the mail server so the user can also access them from a desktop client at their workstation. Which incoming protocol and port combination should the technician configure?

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Question 2 of 20

A user brings in an older iPhone and complains that their friend's charging cable will not fit the port, even though both phones are Apple devices. You inspect the friend's cable and see it has a small, reversible, oval-shaped connector with a symmetrical design on both ends. The user's phone has a wider, flat, reversible port. Which cable connector does the friend's cable most likely use, and why is it incompatible?

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Question 3 of 20

A user reports that their laptop battery no longer charges past 40% and drains rapidly during normal use, even though the AC adapter is connected and the charging LED is lit. The laptop is about four years old and has been used daily. After confirming the AC adapter outputs correct voltage and the system runs fine on AC power, what is the MOST likely cause?

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Question 4 of 20

A user reports that their laptop's touchpad has recently become difficult to click and the bottom cover appears to be bulging outward. The laptop also runs hotter than usual and the case no longer sits flat on the desk. What is the MOST appropriate first action for the technician to take?

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Question 5 of 20

A user reports that their older laptop's screen is very dark. When you shine a flashlight at an angle across the display, you can faintly see the desktop icons and can still move the cursor and interact with windows normally. The laptop uses a CCFL-backlit LCD panel. Which component is the MOST likely cause?

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Question 6 of 20

A user connects their laptop to a docking station using a single USB-C cable. The dock provides two external monitors, a wired keyboard/mouse, gigabit Ethernet, and charges the laptop. After a firmware update, the laptop charges and Ethernet works, but neither external monitor receives a signal. Which capability of the USB-C connection is most likely no longer functioning?

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Question 7 of 20

A user has a modern ultrabook with only USB-C ports and no HDMI or DisplayPort connector. They want to connect the laptop to an external monitor that has an HDMI input. When shopping for an adapter, which capability MUST the laptop's USB-C port support for video output to work through a simple USB-C-to-HDMI adapter?

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Question 8 of 20

A user reports that their two-year-old laptop's touchpad and lower-left palm rest feel unusually warm, and they notice the trackpad has started to feel slightly raised and clicks inconsistently. The device is otherwise functional. What is the MOST likely cause the technician should investigate first?

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Question 9 of 20

A user reports that after cleaning under the keys of their laptop keyboard, an entire row of keys no longer registers keystrokes, while the rest of the keyboard works normally. The keyboard was recently reseated during the cleaning. What is the MOST likely cause?

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Question 10 of 20

A user brings in a modern ultrabook and asks a technician to increase its internal storage capacity. When the technician opens the chassis, there is no 2.5-inch drive bay and no SATA data/power connectors. Instead, there is a single small horizontal slot with a keyed edge connector and a screw standoff for retaining a card. Which type of storage device is this slot designed to accept?

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Question 11 of 20

A graphic designer asks you to recommend a laptop display technology that offers the deepest blacks and per-pixel light control for accurate color work, accepting that it may cost more and carry a slight risk of burn-in. Which display type best fits these requirements?

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Question 12 of 20

A technician is upgrading the memory in a business laptop to improve multitasking performance. The user complains the machine slows dramatically when many browser tabs and a virtual machine are open. When the technician opens the access panel, which type of physical memory module should they expect to find and install in this laptop?

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Question 13 of 20

A user reports that while typing a long document on their company laptop, the mouse cursor randomly jumps to different parts of the text, and words get inserted in the wrong places. The touchpad works normally when the user is not typing, and an external USB mouse has no issues. Which action should the technician take FIRST to resolve this?

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Question 14 of 20

A user brings in a 2-in-1 laptop, reporting that the screen still displays images perfectly and is bright and clear, but the device no longer responds to finger taps or stylus input. External USB mice and keyboards work normally. Which display-related component is the MOST likely cause of this issue?

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Question 15 of 20

A user reports that their laptop's built-in webcam produces no image in any video conferencing application, showing a black screen, but the built-in microphone still works correctly during the same calls. The webcam is not disabled in Device Manager and there is no physical privacy shutter engaged. Where is the webcam module most commonly located, and what is the most likely first component to inspect for this failure?

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Question 16 of 20

A user reports that their laptop's Wi-Fi connection becomes weak or drops entirely whenever they close the display lid partway, but the signal is strong when the lid is fully open. A wired connection works fine at all times. Which component is the MOST likely cause of this intermittent wireless behavior?

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Question 17 of 20

A retail employee wants to enable customers to pay by tapping their smartphones against the point-of-sale terminal without opening any app or pairing the devices first. Which mobile device technology must be present and enabled on the customer's phone to support this contactless payment method?

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Question 18 of 20

A user reports that their company smartphone will not connect to a new Bluetooth headset. The phone's Bluetooth is enabled, and the headset is powered on, but the headset never appears in the phone's list of available devices. Other previously paired accessories still work fine. What should the technician instruct the user to do FIRST?

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Question 19 of 20

A user reports that new contacts and calendar appointments created on their company-issued smartphone are not appearing on the company laptop's mail client, even though email messages arrive on both devices without issue. The phone is connected to Wi-Fi and can browse the internet. What is the MOST likely cause of the missing contacts and calendar entries?

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Question 20 of 20

A user reports that their USB-C tablet charges very slowly and no longer transfers files to their laptop, though it did both when new. You test with a known-good high-wattage charger and a different USB-C cable, and full charging speed and data transfer both return. What is the MOST likely cause of the original symptoms?

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