WGU D317 COMPTIA A+ CORE 1 1101 | REAL QUESTIONS + DETAILED ANSWERS - LATEST VERSION - TOP RATED (2026/2027)

WGU D317 COMPTIA A+ CORE 1 1101 | REAL QUESTIONS + DETAILED ANSWERS
- LATEST VERSION - TOP RATED (2026/2027)



WGU D317 (1101)



1. A laptop user reports the screen is very dim even at maximum
brightness. The technician adjusts the brightness setting but it does not
help. Which component is MOST likely failing?
A. LCD inverter
B. GPU
C. RAM
D. Hard drive
✓ Correct Answer: A | Explanation: The LCD inverter powers the backlight. A
failing inverter causes dim or dark screens even at max brightness settings.


2. Which laptop component is responsible for converting DC power to AC
power for the LCD backlight?
A. Voltage regulator
B. LCD inverter
C. Battery controller
D. Power adapter
✓ Correct Answer: B | Explanation: The inverter converts DC to AC to power
the CCFL backlight on older LCD screens.


3. A technician needs to replace a laptop keyboard. After removal, which
connector type is MOST commonly used to attach the keyboard to the
motherboard?
A. USB
B. SATA
C. ZIF ribbon cable
D. PCIe

,✓ Correct Answer: C | Explanation: Laptop keyboards typically use a Zero
Insertion Force (ZIF) ribbon/flex cable connector.


4. A user wants to add more RAM to a laptop. What is the correct form
factor for laptop RAM?
A. DIMM
B. SODIMM
C. RIMM
D. SIMM
✓ Correct Answer: B | Explanation: Laptops use Small Outline DIMMs
(SODIMMs), which are smaller than desktop DIMMs.


5. Which wireless standard operates ONLY in the 5 GHz band?
A. 802.11b
B. 802.11g
C. 802.11a
D. 802.11n
✓ Correct Answer: C | Explanation: 802.11a operates exclusively in the 5 GHz
band at up to 54 Mbps.


6. A user's laptop touchpad is not responding. The external mouse works
fine. What should the technician check FIRST?
A. Reinstall OS
B. Replace touchpad
C. Check Fn key toggle or driver
D. Replace motherboard
✓ Correct Answer: C | Explanation: Most laptops have an Fn key combination
or function key to disable/enable the touchpad. Check this first before hardware
replacement.


7. A technician is replacing a laptop display. Which type of connector is
used by most modern laptops for the display panel?
A. VGA
B. LVDS or eDP
C. DVI

, D. HDMI
✓ Correct Answer: B | Explanation: Modern laptop displays use Low Voltage
Differential Signaling (LVDS) or embedded DisplayPort (eDP) internally.


8. A user's laptop battery drains very quickly. After testing, the battery
holds only 20% of original capacity. What is the BEST solution?
A. Recalibrate the battery
B. Replace the battery
C. Update the BIOS
D. Replace the charging circuit
✓ Correct Answer: B | Explanation: A battery at 20% original capacity has
degraded beyond practical use and should be replaced.


9. Which mobile device feature allows payment processing at point-of-sale
terminals by tapping the device?
A. Bluetooth
B. NFC
C. Wi-Fi Direct
D. RFID reader
✓ Correct Answer: B | Explanation: Near Field Communication (NFC) enables
contactless payments via mobile wallets like Apple Pay and Google Pay.


10. A user reports a laptop display shows a crack that starts at one corner
and spreads. Which component needs replacement?
A. LCD inverter
B. Video cable
C. LCD panel
D. GPU
✓ Correct Answer: C | Explanation: Physical cracks in the visible display area
indicate the LCD panel itself is damaged and must be replaced.


11. Which type of mobile display technology does NOT require a backlight
because pixels emit their own light?
A. LCD
B. IPS

, C. OLED
D. TN
✓ Correct Answer: C | Explanation: OLED (Organic Light Emitting Diode)
pixels produce their own light, eliminating the need for a separate backlight.


12. A technician is setting up a laptop docking station. The laptop supports
Thunderbolt 3. Which connector does Thunderbolt 3 use?
A. USB-A
B. USB-C
C. Mini DisplayPort
D. HDMI
✓ Correct Answer: B | Explanation: Thunderbolt 3 uses the USB-C connector
form factor, supporting data, video, and power.


13. A user's smartphone screen is unresponsive to touch but displays
correctly. What should the technician check FIRST?
A. Replace the display
B. Clean the screen and check for case interference
C. Flash the firmware
D. Replace the digitizer
✓ Correct Answer: B | Explanation: Before replacing hardware, check for a
dirty screen, screen protector issues, or case interference pressing on the edges.


14. Which laptop storage interface provides the FASTEST data transfer
speeds?
A. SATA III
B. USB 3.0
C. NVMe PCIe
D. IDE
✓ Correct Answer: C | Explanation: NVMe over PCIe offers speeds of 3,500+
MB/s, far exceeding SATA III's 600 MB/s limit.


15. A user wants to connect a laptop to an external 4K monitor. Which port
on the laptop provides the BEST support for 4K at 60Hz?
A. VGA