CompTIA A+ Certification Practice Test PDF

CompTIA A+ Certification Practice Test 1. Which of the following is the primary function of a CPU? () A. Store data permanently () B. Process instructions () C. Provide backup power () D. Display graphics 2. What type of RAM is commonly used in laptops? () A. DIMM () B. SDR...

CompTIA A+ Certification Practice Test 1. Which of the following is the primary function of a CPU? () A. Store data permanently () B. Process instructions () C. Provide backup power () D. Display graphics 2. What type of RAM is commonly used in laptops? () A. DIMM () B. SDRAM () C. SO-DIMM () D. ECC RAM 3. Which layer of the OSI model is responsible for data encryption? () A. Network () B. Session () C. Presentation () D. Application 4. What is the purpose of an anti-static wrist strap? () A. Prevent electric shock () B. Protect components from ESD () C. Ground the computer chassis () D. Insulate from high voltage 5. Which of the following is the correct command to check the IP configuration of a Windows PC? () A. ping () B. ipconfig  CompTIA A+ Certification Practice Test () C. tracert () D. netstat 6. What does RAID 1 provide? () A. Striping with parity () B. Disk mirroring () C. Striping without parity () D. Data compression 7. Which connector is commonly used for external hard drives? () A. SATA () B. USB () C. PCIe () D. HDMI 8. What is the standard voltage of a USB port? () A. 3.3V () B. 5V () C. 12V () D. 24V 9. Which of the following is a type of virtualization software? () A. VMware () B. Windows Defender () C. Microsoft Office () D. Adobe Photoshop  CompTIA A+ Certification Practice Test 10. Which type of printer uses toner cartridges? () A. Inkjet () B. Dot matrix () C. Laser () D. Thermal 11. What does the "ping" command test? () A. Firewall settings () B. Network connectivity () C. DNS resolution () D. File permissions 12. Which storage device uses flash memory and has no moving parts? () A. HDD () B. SSD () C. Optical drive () D. Tape drive 13. What does the term "hot-swappable" mean? () A. A device can be replaced without shutting down the system. () B. A device requires active cooling. () C. A device can overheat during use. () D. A device operates at a high temperature. 14. Which of the following is an example of an IPv4 address? () A. 192.168.1.1 () B. FE80::0202:B3FF:FE1E:8329  CompTIA A+ Certification Practice Test () C. 255.255.255.255.0 () D. http://192.168.1.1 15. What is the default file system for Windows 10? () A. FAT32 () B. NTFS () C. EXT4 () D. HFS+ 16. Which type of cable is used to connect to a wired Ethernet network? () A. HDMI () B. USB-C () C. RJ45 () D. RCA 17. What does POST stand for? () A. Power On Self Test () B. Peripheral Operating System Test () C. Primary Operating System Transfer () D. Post-Operating System Tuning 18. Which device is most commonly used to protect against power surges? () A. UPS () B. Surge protector () C. Power inverter () D. Circuit breaker  CompTIA A+ Certification Practice Test 19. What is the primary purpose of a BIOS/UEFI password? () A. Encrypt files on the hard drive () B. Secure access to the BIOS settings () C. Protect the operating system from malware () D. Prevent unauthorized software installation 20. Which of the following tools is used to test the continuity of a network cable? () A. Multimeter () B. Tone generator () C. Cable tester () D. Loopback plug 21. What is the primary function of a VPN? () A. Block malicious traffic () B. Provide secure remote access () C. Monitor network performance () D. Manage bandwidth 22. Which type of motherboard expansion slot is used for modern graphics cards? () A. PCI () B. PCIe () C. AGP () D. ISA 23. What does the "blue screen of death" typically indicate? () A. Hardware failure () B. Malware infection  CompTIA A+ Certification Practice Test () C. Network issues () D. Software update required 24. Which type of connector is used for analog audio? () A. HDMI () B. RCA () C. DVI () D. DisplayPort 25. What is the purpose of "disk defragmentation"? () A. Delete temporary files () B. Optimize file storage on the disk () C. Increase disk capacity () D. Create a backup of the disk 26. Which of the following uses a heat sink for cooling? () A. RAM () B. CPU () C. SSD () D. Power supply 27. Which wireless standard operates only on the 5 GHz band? () A. 802.11a () B. 802.11b () C. 802.11g () D. 802.11n  CompTIA A+ Certification Practice Test 28. What does "Task Manager" allow you to do in Windows? () A. Install software () B. Monitor system performance () C. Adjust BIOS settings () D. Defragment the hard drive 29. Which of the following commands is used to view hidden files in Linux? () A. ls -a () B. dir () C. pwd () D. cd 30. What is the purpose of a thermal paste? () A. Prevent electrical shorts () B. Improve heat transfer between CPU and cooler () C. Protect the CPU from moisture () D. Seal air gaps in the case