10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
The A Plus exam has 90 questions and runs 1 hour 30 minutes.
These 10 free A Plus questions are organized by exam domain, so you can see how each part of the CompTIA A+ (Core 1 220-1201 / Core 2 220-1202, V15) blueprint is tested. Reveal the answer and explanation under each question.
A technician replaces a cracked laptop display assembly. The new screen works correctly, but the user now reports that the laptop loses its wireless connection whenever it is moved more than a few feet from the access point. The laptop previously maintained a connection throughout the office. What is the MOST likely cause?
Correct answer: D - The Wi-Fi antenna leads were not reconnected and routed through the display bezel
An administrator must allow encrypted command-line management of a Linux server through the corporate firewall, ensuring that credentials are never transmitted in cleartext. Which port must be permitted?
Correct answer: B - 22
Attackers are sending spoofed email that appears to originate from an organization's domain. The administrator wants to publish a record that specifies exactly which mail servers are authorized to send messages on the domain's behalf. Which record should be created?
Correct answer: C - SPF
A technician is installing a Linux distribution on a workstation. The USB installation media appears in the firmware boot menu and is selected, but the system immediately returns to the firmware setup screen instead of launching the installer. The same USB media boots correctly on other workstations. Which firmware setting is MOST likely responsible?
Correct answer: A - Secure Boot is enabled in the firmware configuration
A technician builds a file server using four 4 TB drives configured in a single RAID 5 array. How much usable storage capacity will the array provide?
Correct answer: C - 12 TB
A technician installs an NVMe M.2 solid-state drive into a laptop's vacant M.2 slot. The drive is not detected in the UEFI firmware or by the operating system. When the same drive is connected through an external USB enclosure, it is recognized immediately. What is the MOST likely cause?
Correct answer: D - The M.2 slot is keyed for SATA drives and does not provide PCIe lanes
A development team needs to run a custom web application in the cloud. The team wants to remain responsible only for its own application code and data, while the provider manages the operating system, patching, and the application runtime. Which cloud service model meets this requirement?
Correct answer: B - PaaS
A user reports that their workstation has begun making a repetitive clicking noise and that several files will no longer open. The drive is still detected in firmware and the operating system boots. The user confirms that no backup of the data exists. What should the technician do FIRST?
Correct answer: A - Create a complete image of the drive to preserve the user's data
Employees using a VoIP phone system report that calls sound choppy and robotic, with words cutting in and out. Large file transfers to the same remote site complete successfully at the expected speed. Which network condition is the MOST likely cause?
Correct answer: C - Jitter
A user reports that pages printed on a laser printer look correct, but the toner smears onto their hands and clothing whenever the pages are handled. Image placement and print density are otherwise normal. Which component has MOST likely failed?
Correct answer: D - Fuser assembly
The A Plus exam also covers these domains. Drill them in the full free practice test:
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