comptia a+ practice test Practice Exam 2025: Latest Questions

A user reports that their laptop screen appears very dim even though the brightness is set to maximum. The image is still visible when looking closely. What is the MOST likely cause of this issue?

A technician needs to configure a wireless router for a small office. Which wireless security protocol should be implemented to provide the BEST security?

A user's smartphone battery drains quickly even when not actively using apps. After checking, the technician notices the device feels warm. Which of the following actions should be taken FIRST?

A company wants to implement a cloud solution where they maintain control over the operating system and applications but the cloud provider manages the underlying hardware and networking infrastructure. Which cloud service model meets this requirement?

A technician is troubleshooting a desktop computer that powers on but displays no video output. The computer emits three short beeps during POST. What should the technician do NEXT?

A network administrator needs to assign IP addresses to devices on a network that will allow 50 hosts per subnet while minimizing wasted addresses. Which subnet mask should be used?

A user's mobile device screen is unresponsive to touch input, but physical buttons still work. The device was recently exposed to high humidity. What should a technician attempt FIRST to resolve this issue?

A technician is building a virtualization host server that will run multiple virtual machines simultaneously. Which of the following hardware components will have the GREATEST impact on the number of VMs that can run concurrently?

A company's server room experiences a cooling system failure. Multiple servers begin displaying thermal warnings and some automatically shut down. After cooling is restored, what is the BEST practice before bringing the servers back online?

A technician is configuring a new workstation that requires both high-speed data transfer and power delivery to multiple peripherals through a single connection type. The workstation has limited port availability. Which connection standard would BEST meet these requirements?

A technician is installing a new SATA solid-state drive in a desktop computer. The motherboard has SATA II ports, but the SSD is SATA III. What should the technician expect?

A user reports that their smartphone battery drains rapidly and the device feels warm even when not in use. Which of the following should a technician check FIRST?

A small office is experiencing intermittent network connectivity issues. The technician discovers that the network uses a single unmanaged switch with all devices connected to it, including several IP phones, computers, and a wireless access point. What is the MOST likely cause of the connectivity issues?

A technician needs to configure a SOHO router to allow employees to access the company's internal file server from home. The server is at IP address 192.168.1.50 and uses port 445. What router configuration is required?

A desktop computer fails to boot and displays no video output. The technician hears a series of beeps: one long beep followed by three short beeps. What component is MOST likely causing the issue?

An organization wants to allow employees to access virtual desktops from thin clients located in the office. The virtual desktops will run on servers in the company's datacenter. Which virtualization solution is being described?

A user's laptop screen displays vertical colored lines and distorted images. When connected to an external monitor using HDMI, the external display works perfectly. What is the MOST likely cause?

A technician is configuring a new tablet for a user who travels internationally. The user needs to access email and browse the web while abroad without incurring high roaming charges. What is the BEST solution?

A company is implementing a cloud strategy where they will maintain sensitive customer databases on their own servers, while using a cloud provider for email services and collaboration tools. Which cloud deployment model is being used?

A technician is troubleshooting a computer that powers on but does not complete POST. The motherboard LED is lit, fans are spinning, but there are no beeps and no display output. The technician has reseated the RAM and verified the power connections. What should the technician do NEXT?

A user reports that their laptop screen appears very dim, even though the brightness settings are at maximum. The display is still visible when viewed in a dark room. Which component is MOST likely failing?

A technician needs to configure a SOHO router to allow a specific device to always receive the same IP address from the DHCP server. Which feature should the technician configure?

A company is deploying a virtualization solution where multiple virtual machines will run on a single physical server. The IT manager wants to ensure that VMs can communicate with each other without using the physical network adapter. What type of virtual switch configuration should be implemented?

A user's smartphone battery drains rapidly and the device feels warm to the touch even when idle. After checking the battery usage statistics, no single app shows excessive consumption. What should a technician do FIRST to troubleshoot this issue?

A technician is installing a new M.2 solid-state drive in a desktop computer. The motherboard has two M.2 slots: one labeled M.2_1 (PCIe x4/SATA) and one labeled M.2_2 (PCIe x2). The technician has an NVMe M.2 SSD. After installation in the M.2_2 slot, the drive is not detected in BIOS. What is the MOST likely cause?