CompTIA A+ Practice Test

CompTIA A+ Core 1 Practice Test 1

CompTIA A+ Practice Test

1 / 90

A user reports that their internet speed is much slower than expected. What is the first troubleshooting step?

2 / 90

A technician is configuring a home network. What is the best encryption protocol for securing Wi-Fi?

3 / 90

A user wants to upgrade their desktop to improve gaming performance. What component should they upgrade first?

4 / 90

A technician replaces a desktop motherboard. What must be done before booting into Windows?

5 / 90

A user’s mobile phone battery drains quickly. Which setting should be adjusted first to extend battery life?

6 / 90

A user needs to print from a laptop to a shared office printer, but the printer is connected to another computer. What is the best solution?

7 / 90

A technician is troubleshooting a PC that is making a loud grinding noise. What is the most likely component causing this issue?

8 / 90

A user’s Wi-Fi keeps disconnecting randomly throughout the day. What is the most likely cause?

9 / 90

A technician installs a new hard drive in a computer, but it does not appear in Windows Explorer. What is the best next step?

10 / 90

A user is experiencing slow performance when copying files to an external USB drive. What is the most likely reason?

11 / 90

A user needs to access the BIOS on their Windows 10 laptop, but it boots too quickly to press a key. What is another way to access the BIOS?

12 / 90

A user complains that their desktop PC does not detect their new NVMe SSD. What is the best troubleshooting step?

13 / 90

A technician is setting up a RAID 1 array. What is the primary benefit of this configuration?

14 / 90

A user reports that their laptop keyboard is typing numbers instead of letters. What is the most likely cause?

15 / 90

A technician is installing a new graphics card in a gaming PC. The PC powers on but does not display any video output. What should be checked first?

16 / 90

A laptop’s battery percentage suddenly drops from 80% to 15%, and the laptop shuts down shortly after. What is the most likely cause?

17 / 90

A company wants to provide wireless network access for employees and guests but keep them separate. What is the best way to achieve this?

18 / 90

A user reports that their desktop computer randomly restarts. A technician checks the Event Viewer and finds a “Kernel-Power” error. What is the most likely cause?

19 / 90

A customer complains that their laptop gets extremely hot and sometimes shuts down unexpectedly. What is the most likely cause?

20 / 90

A technician is troubleshooting a desktop computer that won’t power on. The power cable is connected, but pressing the power button does nothing. What should be checked first?

21 / 90

A user accidentally deleted an important system file in Windows. What is the best way to recover it?

22 / 90

A company needs to encrypt all files stored on employee laptops. What Windows feature should they use?

23 / 90

A laptop user reports that their touchpad is unresponsive. What should the technician check first?

24 / 90

A technician is troubleshooting a Linux system that fails to boot. Which command should they use to check the boot logs?

25 / 90

A user installs a new software update and their system begins running extremely slow. What is the best troubleshooting step?

26 / 90

A technician needs to transfer a large file between two Windows computers without using the internet. Which method is the most efficient?

27 / 90

A user’s Windows laptop shows a black screen after login. What should the technician check first?

28 / 90

A company is setting up a network and needs to assign IP addresses dynamically. Which protocol should they use?

29 / 90

A technician is troubleshooting a Mac that won’t boot past the Apple logo. What is the best first step?

30 / 90

A Windows user reports that their system frequently crashes with a “blue screen” error. Which tool should be used to analyze the crash logs?

31 / 90

A laptop user complains that their Wi-Fi frequently disconnects. What is the most likely cause?

32 / 90

A technician installs a new GPU, but the system fails to boot. What is the most likely cause?

33 / 90

A company needs to securely erase all data from a decommissioned SSD. What is the best method?

34 / 90

A technician suspects that malware has infected a system and is preventing access to Task Manager. What is the best next step?

35 / 90

A user receives an error stating that a USB device is not recognized. What is the most likely cause?

36 / 90

A technician replaces a user’s HDD with an SSD. After installation, the user complains that performance has not improved significantly. What should be checked?

37 / 90

A Windows system is experiencing slow boot times. Which tool should be used to analyze startup programs?

38 / 90

A user reports that their laptop screen randomly turns off, but the system remains powered on. What should the technician check first?

39 / 90

A technician is setting up a RAID 5 array but notices that one of the disks is not being recognized in the BIOS. What should they check first?

40 / 90

A user reports that their laptop’s battery drains extremely fast, even when fully charged. What is the most likely cause?

41 / 90

A technician is troubleshooting a PC that restarts randomly during operation. Event Viewer shows a “kernel power” error. What should be checked first?

42 / 90

A laptop’s display shows colored lines and artifacts after booting. The issue persists on an external monitor. What is the most likely cause?

43 / 90

A workstation cannot connect to a file server on the same subnet. The server is pingable, but file sharing is inaccessible. What is the most likely cause?

44 / 90

A user reports that their wireless mouse lags intermittently. The mouse uses a USB receiver, and other USB devices work fine. What should the technician try first?

45 / 90

A technician is troubleshooting a PC that boots slowly and shows high disk usage. Task Manager indicates a third-party application is consuming resources. What is the next step?

46 / 90

A network printer is not responding to print jobs from multiple workstations. The printer is online, and its IP address is reachable via ping. What should be checked next?

47 / 90

A user reports that their laptop shuts down randomly during heavy workloads. The fan is running, and vents are clear. What should the technician check first?

48 / 90

A workstation displays a “No Boot Device Found” error after a power outage. The BIOS detects the SSD. What is the most likely cause?

49 / 90

A technician is configuring a virtual desktop for remote employees. Which protocol should be used for secure remote access to the virtual desktop?

50 / 90

A user reports slow performance on a cloud-based application. The application is hosted on a shared virtual server. What is the most likely cause?

51 / 90

A technician is setting up a virtual machine for a developer. The VM requires isolated network access for testing. Which network setting should be configured?

52 / 90

A company is migrating its email server to a cloud provider. The technician needs to ensure high availability. Which cloud model should be implemented?

53 / 90

A technician is configuring a RAID array for a small business server requiring redundancy and performance. Which RAID level should be selected?

54 / 90

A printer is producing faded prints despite a full toner cartridge. The technician has cleaned the print heads. What is the next step?

55 / 90

A technician is installing a new GPU in a workstation. The system powers on, but there is no display output. The GPU is receiving power. What should be checked first?

56 / 90

A user reports that their desktop’s USB 3.0 ports are only providing USB 2.0 speeds. The devices are USB 3.0 compatible. What is the most likely cause?

57 / 90

A workstation fails to power on after a RAM upgrade. The technician verifies the RAM is compatible. What should be checked next?

58 / 90

A technician is assembling a custom PC for a graphic designer requiring high-performance storage. Which storage configuration should be recommended?

59 / 90

A technician is troubleshooting a network where a device with IP 192.168.1.10 cannot access the internet. The default gateway is 192.168.1.1, and DNS is set to 8.8.8.8. What is the most likely issue?

60 / 90

A user reports that their VoIP phone has poor call quality, with jitter and dropped calls. The network is wired, and other devices are unaffected. What should the technician configure to resolve this?

61 / 90

A technician is setting up a new wireless access point. The network requires WPA3 security and support for 802.11ax devices. Which configuration should be selected?

62 / 90

A user cannot access a corporate website hosted on an internal server (10.0.0.50) from their workstation. Other websites are accessible. What should the technician check first?

63 / 90

A small office has slow internet speeds after adding new devices to the network. The router is a single-band 2.4 GHz model. What is the most likely cause of the slowdown?

64 / 90

A technician is troubleshooting a network where a workstation cannot ping the default gateway (192.168.1.1). The workstation’s IP is 192.168.1.100/24. What is the most likely cause?

65 / 90

A user reports that their tablet’s Wi-Fi connection drops frequently. The signal strength is strong, and other devices on the network are stable. What should the technician check first?

66 / 90

A technician is upgrading a laptop’s storage from an HDD to an SSD. The new SSD is installed, but the system does not boot. What is the most likely oversight?

67 / 90

A laptop user complains that their device does not detect an external monitor connected via a docking station. The monitor works with other laptops. What is the most likely issue?

68 / 90

A technician is configuring a tablet for corporate use, requiring secure email access. The user needs to sync email and calendar data over a cellular connection. Which protocol should be configured for secure email synchronization?

69 / 90

A user reports that their smartphone's touchscreen is unresponsive in certain areas. The device has no visible damage, and a soft reset did not resolve the issue. What should the technician do next?

70 / 90

A developer is testing a new application feature in isolation to avoid affecting the main system. What environment are they using? 

71 / 90

A desktop emits a burning smell and powers off immediately. A visual inspection shows discoloration around the CPU area. What should the technician do?

72 / 90

A user complains their external USB drive disconnects intermittently during file transfers. Which is the most likely cause?

73 / 90

A system boots but displays the wrong date and time every startup. What is the likely cause?

74 / 90

A workstation sends print jobs to an office laser printer, but all jobs sit in the queue and never print. Other users print normally. What should be done first?

75 / 90

A user’s laptop cannot detect any Bluetooth devices, though Wi-Fi works correctly. What should the technician do?

76 / 90

A technician installs a new GPU, but the PC randomly shuts off under load. What should be checked first?

77 / 90

A user reports that their laptop trackpad stops working only when the laptop is plugged into a specific conference-room charger. What is the problem?

78 / 90

A laser printer leaves vertical black streaks. What is the most likely cause?

79 / 90

A user adds a second NVMe drive. The BIOS shows it, but Windows does not. What should the technician check?

80 / 90

A phone displays “SIM not provisioned” after the user swaps SIM cards abroad. What is the most likely cause?

81 / 90

A projector image is dim and flickers when using HDMI, but VGA works fine. What is the likely cause?

82 / 90

A RAID 5 array reports a failed drive and slow read/write performance. Which symptom best aligns with expected RAID issues?

83 / 90

A laptop shows a black screen at power-on with no POST beeps after the user replaced the battery. The charging LED is lit. What should be checked next?

84 / 90

A company wants to run virtual machines directly on server hardware with no host OS. What hypervisor type is needed?

85 / 90

A desktop motherboard supports DDR4, non-ECC, dual-channel RAM. Which module is least appropriate?

86 / 90

A 3D printer produces speckled output and sometimes double images. What should the technician perform first?

87 / 90

A technician assigns a static IP to a workstation:
IP: 192.168.1.75
Mask: 255.255.255.0
Gateway: 192.168.1.1
The system cannot reach the internet. What is the most likely issue?

88 / 90

A small business installs a new server to handle DNS, DHCP, file sharing, and printing. Which role is not part of standard server roles in the objectives?

89 / 90

A laptop repeatedly drops its Wi-Fi connection when the user moves between rooms. The router broadcasts both 2.4 GHz and 5 GHz. What is the most likely cause?

90 / 90

A smartphone user complains their battery drains rapidly even with light use. The device is 18 months old and shows unexpected shutdowns at 20–30% battery. What should the technician do first?

Your score is

The average score is 67%

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