CompTIA A+ Core 1 220-1101 Certification
Official Practice Exam Actual Exam
2026/2027 with Detailed Rationales |
Complete Exam-Style Questions | Pass
Guaranteed – A+ Graded
══════════════════════════════════════
SECTION 1: MOBILE DEVICES Q1 – Q10
══════════════════════════════════════
Question 1 of 50
A field technician is configuring a new Android tablet for a medical office. The office manager
requests that the device automatically lock after 5 minutes of inactivity and requires a 6-digit
PIN for access. The technician also needs to ensure that failed login attempts are limited to
prevent brute-force attacks. Which mobile device feature should the technician configure first
to meet these requirements?
A. Screen timeout settings only
B. Mobile device management (MDM) enrollment ✓ CORRECT
C. Biometric authentication settings
D. Location services configuration
Correct Answer: B
Rationale: MDM enrollment provides centralized control over screen timeout, PIN complexity,
and failed login attempt policies across the entire device. While screen timeout settings
alone could handle the lock timer, they cannot enforce PIN length or brute-force protection
without MDM oversight. In healthcare environments, MDM is typically the first step before
applying any security policies to ensure compliance with regulations like HIPAA.
Question 2 of 50
A user reports that their smartphone battery drains completely within three hours despite
minimal usage. The technician notices the device feels warm even when idle and the battery
usage screen shows "Cell Standby" consuming 45% of power. The device is two years old and
has never had its battery replaced. What is the most likely cause of this issue?
,A. A rogue application running background processes
B. A failing or degraded lithium-ion battery ✓ CORRECT
C. An incorrect APN configuration
D. Overactive Bluetooth scanning
Correct Answer: B
Rationale: Excessive heat during idle operation combined with abnormal standby drain is a
classic indicator of battery degradation, where internal resistance increases and chemical
efficiency drops. A rogue app would typically show high CPU or data usage rather than
disproportionate cell standby consumption. Most lithium-ion batteries begin significant
degradation after 18-24 months of regular charge cycles, making replacement the appropriate
solution.
Question 3 of 50
A company deploys ruggedized tablets to warehouse workers for inventory scanning. The IT
department needs to restrict these devices to a single barcode scanning application and
prevent users from accessing settings, the app store, or the web browser. Which
configuration approach should the technician implement?
A. Factory reset protection
B. Screen pinning or kiosk mode ✓ CORRECT
C. Remote wipe capability
D. Geofencing policies
Correct Answer: B
Rationale: Kiosk mode locks the device to a single application or a whitelist of approved
apps while blocking access to system settings and other applications entirely. Remote wipe
and factory reset protection are security features for lost or stolen devices, not for restricting
daily usage. Many Android devices include built-in screen pinning, while enterprise
deployments often use dedicated kiosk mode through MDM for warehouse environments.
Question 4 of 50
A user connects their laptop to a wireless display adapter to mirror their screen during a
presentation. The connection initially works but becomes unstable after about 10 minutes,
with frequent disconnections and reconnection attempts. Other wireless devices in the room
operate normally. What is the most likely cause of this intermittent connectivity?
A. The wireless display adapter is overheating ✓ CORRECT
B. Interference from a nearby microwave oven
C. The laptop's Wi-Fi adapter driver is outdated
D. Bluetooth is enabled and causing channel overlap
, Correct Answer: A
Rationale: Wireless display adapters like Miracast receivers generate significant heat during
sustained use, and thermal throttling or shutdown commonly causes exactly the pattern
described—stable initial connection followed by progressive instability. Microwave
interference would affect all 2.4 GHz devices simultaneously, not just the display adapter. An
outdated driver would likely prevent connection entirely rather than cause time-dependent
failures.
Question 5 of 50
A technician is troubleshooting a smartphone where the touchscreen becomes completely
unresponsive after the device is dropped. The display shows no cracks, the phone powers on
normally, and the user can hear notifications. The device uses a capacitive touchscreen.
Which component is most likely damaged?
A. The digitizer layer ✓ CORRECT
B. The LCD panel
C. The proximity sensor
D. The ambient light sensor
Correct Answer: A
Rationale: The digitizer is the transparent touch-sensitive layer that sits above the display
panel and registers finger contact; physical impact can fracture this layer internally without
visible damage to the outer glass or LCD. Since the image displays correctly and the phone
functions otherwise, the LCD panel is clearly intact. Proximity and ambient light sensors
affect call behavior and screen brightness but do not control touch input recognition.
Question 6 of 50
A user traveling internationally reports that their GSM smartphone cannot connect to any
cellular network abroad, despite the carrier confirming that roaming is enabled on the
account. The phone displays "No Service" in multiple countries where the carrier has partner
networks. Back home, the device works perfectly. What should the technician check first?
A. Whether the device is carrier-locked ✓ CORRECT
B. The SIM card for physical damage
C. The APN settings for international roaming
D. The preferred network type setting
Correct Answer: A
Rationale: A carrier-locked device will reject foreign SIM cards and partner networks even
when roaming is enabled on the account, which perfectly explains functional domestic
service but complete international failure. A damaged SIM would cause problems
domestically as well. APN issues typically allow network registration but block data, not
Official Practice Exam Actual Exam
2026/2027 with Detailed Rationales |
Complete Exam-Style Questions | Pass
Guaranteed – A+ Graded
══════════════════════════════════════
SECTION 1: MOBILE DEVICES Q1 – Q10
══════════════════════════════════════
Question 1 of 50
A field technician is configuring a new Android tablet for a medical office. The office manager
requests that the device automatically lock after 5 minutes of inactivity and requires a 6-digit
PIN for access. The technician also needs to ensure that failed login attempts are limited to
prevent brute-force attacks. Which mobile device feature should the technician configure first
to meet these requirements?
A. Screen timeout settings only
B. Mobile device management (MDM) enrollment ✓ CORRECT
C. Biometric authentication settings
D. Location services configuration
Correct Answer: B
Rationale: MDM enrollment provides centralized control over screen timeout, PIN complexity,
and failed login attempt policies across the entire device. While screen timeout settings
alone could handle the lock timer, they cannot enforce PIN length or brute-force protection
without MDM oversight. In healthcare environments, MDM is typically the first step before
applying any security policies to ensure compliance with regulations like HIPAA.
Question 2 of 50
A user reports that their smartphone battery drains completely within three hours despite
minimal usage. The technician notices the device feels warm even when idle and the battery
usage screen shows "Cell Standby" consuming 45% of power. The device is two years old and
has never had its battery replaced. What is the most likely cause of this issue?
,A. A rogue application running background processes
B. A failing or degraded lithium-ion battery ✓ CORRECT
C. An incorrect APN configuration
D. Overactive Bluetooth scanning
Correct Answer: B
Rationale: Excessive heat during idle operation combined with abnormal standby drain is a
classic indicator of battery degradation, where internal resistance increases and chemical
efficiency drops. A rogue app would typically show high CPU or data usage rather than
disproportionate cell standby consumption. Most lithium-ion batteries begin significant
degradation after 18-24 months of regular charge cycles, making replacement the appropriate
solution.
Question 3 of 50
A company deploys ruggedized tablets to warehouse workers for inventory scanning. The IT
department needs to restrict these devices to a single barcode scanning application and
prevent users from accessing settings, the app store, or the web browser. Which
configuration approach should the technician implement?
A. Factory reset protection
B. Screen pinning or kiosk mode ✓ CORRECT
C. Remote wipe capability
D. Geofencing policies
Correct Answer: B
Rationale: Kiosk mode locks the device to a single application or a whitelist of approved
apps while blocking access to system settings and other applications entirely. Remote wipe
and factory reset protection are security features for lost or stolen devices, not for restricting
daily usage. Many Android devices include built-in screen pinning, while enterprise
deployments often use dedicated kiosk mode through MDM for warehouse environments.
Question 4 of 50
A user connects their laptop to a wireless display adapter to mirror their screen during a
presentation. The connection initially works but becomes unstable after about 10 minutes,
with frequent disconnections and reconnection attempts. Other wireless devices in the room
operate normally. What is the most likely cause of this intermittent connectivity?
A. The wireless display adapter is overheating ✓ CORRECT
B. Interference from a nearby microwave oven
C. The laptop's Wi-Fi adapter driver is outdated
D. Bluetooth is enabled and causing channel overlap
, Correct Answer: A
Rationale: Wireless display adapters like Miracast receivers generate significant heat during
sustained use, and thermal throttling or shutdown commonly causes exactly the pattern
described—stable initial connection followed by progressive instability. Microwave
interference would affect all 2.4 GHz devices simultaneously, not just the display adapter. An
outdated driver would likely prevent connection entirely rather than cause time-dependent
failures.
Question 5 of 50
A technician is troubleshooting a smartphone where the touchscreen becomes completely
unresponsive after the device is dropped. The display shows no cracks, the phone powers on
normally, and the user can hear notifications. The device uses a capacitive touchscreen.
Which component is most likely damaged?
A. The digitizer layer ✓ CORRECT
B. The LCD panel
C. The proximity sensor
D. The ambient light sensor
Correct Answer: A
Rationale: The digitizer is the transparent touch-sensitive layer that sits above the display
panel and registers finger contact; physical impact can fracture this layer internally without
visible damage to the outer glass or LCD. Since the image displays correctly and the phone
functions otherwise, the LCD panel is clearly intact. Proximity and ambient light sensors
affect call behavior and screen brightness but do not control touch input recognition.
Question 6 of 50
A user traveling internationally reports that their GSM smartphone cannot connect to any
cellular network abroad, despite the carrier confirming that roaming is enabled on the
account. The phone displays "No Service" in multiple countries where the carrier has partner
networks. Back home, the device works perfectly. What should the technician check first?
A. Whether the device is carrier-locked ✓ CORRECT
B. The SIM card for physical damage
C. The APN settings for international roaming
D. The preferred network type setting
Correct Answer: A
Rationale: A carrier-locked device will reject foreign SIM cards and partner networks even
when roaming is enabled on the account, which perfectly explains functional domestic
service but complete international failure. A damaged SIM would cause problems
domestically as well. APN issues typically allow network registration but block data, not
