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CompTIA A+ Core 1 (220-1101) Advanced
Certification Practice Exam v2.0
Comprehensive 150-Question Bank
Covering Mobile Devices, Networking,
Hardware, Virtualization & Cloud
Computing, and Hardware & Network
Troubleshooting with Detailed Expert
Rationales for IT Professionals a well
detailed one written and
graded A+ upgraded
, 2
Introduction
This second volume practice exam contains 150 entirely new multiple-choice questions
designed for the CompTIA A+ Core 1 (220-1101) certification exam. Questions are distributed
across all five exam domains with advanced-level scenarios and application-based questions to
test deep understanding. Each question includes a correct answer and a detailed expert
rationale.
Domain 1: Mobile Devices (15%)
Question 1
A technician is servicing a laptop with a cracked screen. The replacement screen has the same
resolution and size but a different connector type. What should the technician do?
A) Install the screen with an adapter cable
B) Verify the replacement screen is compatible with the laptop model
C) Modify the connector to fit the motherboard
D) Update the graphics driver to support the new screen
-” detailed answer 100 % correct :-”B
Rationale: Laptop screens have specific compatibility requirements including connector type
(eDP, LVDS), pin count, and mounting brackets. The technician must verify compatibility before
installation. Adapters are not typically available for laptop display connectors, and modifying
connectors will damage both components.
Question 2
A user's smartphone battery swelled, causing the back cover to bulge. The device still functions
but the user is concerned. What is the technician's BEST course of action?
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A) Continue using the device but monitor the battery temperature
B) Recommend immediate battery replacement and power down the device
C) Drain the battery completely to reduce swelling
D) Place the device in a refrigerator to reduce swelling
-” detailed answer 100 % correct :-”B
Rationale: A swollen lithium-ion battery is a significant fire and explosion hazard. The device
should be powered down immediately and the battery replaced by a qualified technician.
Swollen batteries should never be punctured, heated, or used.
Question 3
Which technology allows a mobile device to authenticate a user based on the unique pattern of
their fingerprint?
A) Facial recognition
B) Iris scanner
C) Fingerprint sensor
D) Voice recognition
-” detailed answer 100 % correct :-”C
Rationale: A fingerprint sensor captures and analyzes the unique ridge patterns of a user's
fingerprint for biometric authentication. This technology is commonly used for device unlocking
and payment authentication on mobile devices.
Question 4
A technician is replacing a laptop keyboard. After installation, the keyboard backlight does not
work, though all keys function properly. What is the MOST likely cause?
A) The keyboard is defective
B) The keyboard ribbon cable is not fully inserted
C) The backlight function key needs to be toggled
D) The BIOS needs updating
-” detailed answer 100 % correct :-”B
Rationale: Laptop keyboards typically have separate connections for key inputs and
backlighting. If the keys work but the backlight doesn't, the ribbon cable may not be fully
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seated, and the backlight pins are not making contact. This is more common than a defective
keyboard.
Question 5
A user wants to connect their laptop to three external monitors. Which connection standard
would BEST support this configuration?
A) HDMI 1.4
B) DisplayPort 1.2
C) Thunderbolt 3
D) VGA
-” detailed answer 100 % correct :-”C
Rationale: Thunderbolt 3 supports daisy-chaining up to six devices and can drive dual 4K
displays at 60Hz. DisplayPort 1.2 supports multi-stream transport (MST) for multiple monitors,
but Thunderbolt 3 provides the most flexibility and performance. HDMI 1.4 and VGA are more
limited.
Question 6
A laptop's CPU fan is running constantly at maximum speed. The system is idle and
temperatures are normal. What should the technician suspect?
A) The CPU is failing
B) The fan control system is faulty
C) The thermal paste needs replacement
D) The BIOS is configured for maximum performance
-” detailed answer 100 % correct :-”B
Rationale: If the CPU temperature is normal but the fan runs at maximum speed, the fan
control system (thermal management) may be faulty. This could be a BIOS issue, a failed
temperature sensor, or a fan controller malfunction.
Question 7
Which of the following is a characteristic of an eMMC storage device used in mobile devices?
CompTIA A+ Core 1 (220-1101) Advanced
Certification Practice Exam v2.0
Comprehensive 150-Question Bank
Covering Mobile Devices, Networking,
Hardware, Virtualization & Cloud
Computing, and Hardware & Network
Troubleshooting with Detailed Expert
Rationales for IT Professionals a well
detailed one written and
graded A+ upgraded
, 2
Introduction
This second volume practice exam contains 150 entirely new multiple-choice questions
designed for the CompTIA A+ Core 1 (220-1101) certification exam. Questions are distributed
across all five exam domains with advanced-level scenarios and application-based questions to
test deep understanding. Each question includes a correct answer and a detailed expert
rationale.
Domain 1: Mobile Devices (15%)
Question 1
A technician is servicing a laptop with a cracked screen. The replacement screen has the same
resolution and size but a different connector type. What should the technician do?
A) Install the screen with an adapter cable
B) Verify the replacement screen is compatible with the laptop model
C) Modify the connector to fit the motherboard
D) Update the graphics driver to support the new screen
-” detailed answer 100 % correct :-”B
Rationale: Laptop screens have specific compatibility requirements including connector type
(eDP, LVDS), pin count, and mounting brackets. The technician must verify compatibility before
installation. Adapters are not typically available for laptop display connectors, and modifying
connectors will damage both components.
Question 2
A user's smartphone battery swelled, causing the back cover to bulge. The device still functions
but the user is concerned. What is the technician's BEST course of action?
, 3
A) Continue using the device but monitor the battery temperature
B) Recommend immediate battery replacement and power down the device
C) Drain the battery completely to reduce swelling
D) Place the device in a refrigerator to reduce swelling
-” detailed answer 100 % correct :-”B
Rationale: A swollen lithium-ion battery is a significant fire and explosion hazard. The device
should be powered down immediately and the battery replaced by a qualified technician.
Swollen batteries should never be punctured, heated, or used.
Question 3
Which technology allows a mobile device to authenticate a user based on the unique pattern of
their fingerprint?
A) Facial recognition
B) Iris scanner
C) Fingerprint sensor
D) Voice recognition
-” detailed answer 100 % correct :-”C
Rationale: A fingerprint sensor captures and analyzes the unique ridge patterns of a user's
fingerprint for biometric authentication. This technology is commonly used for device unlocking
and payment authentication on mobile devices.
Question 4
A technician is replacing a laptop keyboard. After installation, the keyboard backlight does not
work, though all keys function properly. What is the MOST likely cause?
A) The keyboard is defective
B) The keyboard ribbon cable is not fully inserted
C) The backlight function key needs to be toggled
D) The BIOS needs updating
-” detailed answer 100 % correct :-”B
Rationale: Laptop keyboards typically have separate connections for key inputs and
backlighting. If the keys work but the backlight doesn't, the ribbon cable may not be fully
, 4
seated, and the backlight pins are not making contact. This is more common than a defective
keyboard.
Question 5
A user wants to connect their laptop to three external monitors. Which connection standard
would BEST support this configuration?
A) HDMI 1.4
B) DisplayPort 1.2
C) Thunderbolt 3
D) VGA
-” detailed answer 100 % correct :-”C
Rationale: Thunderbolt 3 supports daisy-chaining up to six devices and can drive dual 4K
displays at 60Hz. DisplayPort 1.2 supports multi-stream transport (MST) for multiple monitors,
but Thunderbolt 3 provides the most flexibility and performance. HDMI 1.4 and VGA are more
limited.
Question 6
A laptop's CPU fan is running constantly at maximum speed. The system is idle and
temperatures are normal. What should the technician suspect?
A) The CPU is failing
B) The fan control system is faulty
C) The thermal paste needs replacement
D) The BIOS is configured for maximum performance
-” detailed answer 100 % correct :-”B
Rationale: If the CPU temperature is normal but the fan runs at maximum speed, the fan
control system (thermal management) may be faulty. This could be a BIOS issue, a failed
temperature sensor, or a fan controller malfunction.
Question 7
Which of the following is a characteristic of an eMMC storage device used in mobile devices?
