CompTIA A+ Core 1 (220-1101) Extended Mock Exam.docx

CompTIA A+ Core 1 (220-1101) Extended Mock Exam Section 1: Mobile Devices (15%) 1\. Which type of memory is typically used in laptops? A. DIMM B. ECC C. SO-DIMM D. DDR4 Answer: C 2\. What is the purpose of a laptop's inverter? A. Convert DC to AC for backlight B. Convert AC to...

CompTIA A+ Core 1 (220-1101) Extended Mock Exam Section 1: Mobile Devices (15%) 1\. Which type of memory is typically used in laptops? A. DIMM B. ECC C. SO-DIMM D. DDR4 Answer: C 2\. What is the purpose of a laptop's inverter? A. Convert DC to AC for backlight B. Convert AC to DC for the processor C. Regulate battery power D. Amplify Wi-Fi signals Answer: A 3\. Which display technology is known for its deep blacks and high contrast ratio? A. IPS B. TN C. OLED D. LCD Answer: C 4\. What is the first step in replacing a laptop's hard drive? A. Remove the battery B. Format the new hard drive C. Remove the display D. Disconnect the keyboard Answer: A 5\. What type of USB connector is most common on modern smartphones for charging and data transfer? A. USB-A B. USB-C C. Mini-USB D. Micro-USB Answer: B 6\. A user reports their laptop display is dim even when plugged in. What is the most likely cause? A. Incorrect brightness settings B. Faulty power supply C. Failing inverter D. Overheated CPU Answer: C 7\. Which of the following is a characteristic of eMMC storage? A. Slower than SSDs B. Larger capacity than SSDs C. External storage format D. Provides faster read speeds than NVMe SSD Answer: A 8\. Which technology allows smartphones to make payments by tapping on a terminal? A. Bluetooth B. NFC C. Wi-Fi Direct D. IR Answer: B 9\. What would be the first step to troubleshoot if a laptop's keyboard stops working? A. Replace the keyboard B. Update keyboard drivers C. Test with an external keyboard D. Replace the motherboard Answer: C 10\. Which port is commonly used for docking stations on modern laptops? A. USB-C B. HDMI C. VGA D. Ethernet Answer: A 11\. What is the most common type of battery in mobile devices? A. NiCad B. Lithium-ion C. Nickel-metal hydride D. Alkaline Answer: B 12\. Which of the following issues can a factory reset resolve on a mobile device? A. Broken screen B. Software corruption C. Dead battery D. Physically damaged speakers Answer: B 13\. Which accessory connects a smartphone to an external display? A. USB-C to HDMI adapter B. Micro-USB to VGA cable C. USB-A to DisplayPort adapter D. Thunderbolt to VGA adapter Answer: A 14\. A user reports slow data speeds on their phone when on mobile data. Which of the following is the first step? A. Restart the phone B. Replace the SIM card C. Reset network settings D. Contact the mobile carrier Answer: A 15\. What is the first step to replace a smartphone screen? A. Remove the back panel B. Power off the device C. Disconnect the battery D. Remove the screen protector Answer: B Section 2: Networking (20%) 16\. What protocol is used to retrieve emails from a remote server to a local client? A. FTP B. SMTP C. POP3 D. RDP Answer: C 17\. Which of the following describes a characteristic of UDP? A. Connection-oriented B. Higher overhead than TCP C. Connectionless D. Error-correcting protocol Answer: C 18\. What is the default port for HTTPS? A. 80 B. 443 C. 110 D. 21 Answer: B 19\. Which wireless standard operates only on the 2.4 GHz band? A. 802.11n B. 802.11g C. 802.11ac D. 802.11ax Answer: B 20\. A user cannot connect to a website. You ping the site and receive an IP address. Which layer of the OSI model is likely functioning correctly? A. Application B. Data Link C. Network D. Presentation Answer: C 21\. Which of the following IP addresses is valid for a private network? A. 172.16.20.5 B. 192.200.1.5 C. 200.100.100.5 D. 127.0.0.1 Answer: A 22\. Which technology allows a network administrator to prioritize certain types of traffic for smoother performance? A. QoS B. DNS C. NAT D. VPN Answer: A 23\. What type of cable is required to achieve 10 Gbps speeds over a short distance? A. Cat5e B. Cat6a C. Cat7 D. Fiber optic Answer: B 24\. Which protocol is responsible for dynamically assigning IP addresses to devices on a network? A. DNS B. DHCP C. FTP D. ARP Answer: B 25\. What is the maximum theoretical speed of a 802.11n Wi-Fi connection? A. 54 Mbps B. 600 Mbps C. 1.3 Gbps D. 3.46 Gbps Answer: B 26\. A user can access local network resources but cannot browse the web. Which of the following is most likely the problem? A. The router is misconfigured B. The user's DNS settings are incorrect C. The device is using an incorrect IP address D. The user's NIC is faulty Answer: B 27\. Which of the following describes the purpose of a VPN? A. To encrypt all network traffic over a secure connection B. To monitor network traffic C. To prevent DoS attacks D. To allocate IP addresses dynamically Answer: A 28\. Which of the following network types has the largest coverage area? A. PAN B. LAN C. MAN D. WAN Answer: D 29\. A technician is setting up a wireless network for a small office. What encryption method should be used to secure the network? A. WEP B. WPA C. WPA2 D. RADIUS Answer: C 30\. What is the purpose of NAT (Network Address Translation)? A. Translate IP addresses between private and public networks B. Assign MAC addresses to devices on the network C. Prioritize network traffic D. Provide redundancy in case of a network failure Answer: A Section 3: Hardware (25%) 31\. Which connector is used to provide power to modern motherboards? A. Molex B. 24-pin ATX C. 6-pin PCIe D. SATA power connector Answer: B 32\. Which of the following is an advantage of SSDs over HDDs? A. Higher storage capacity B. Greater durability C. Lower price per GB D. Longer lifespan Answer: B 33\. Which of the following components is part of a CPU's architecture? A. Northbridge B. ALU (Arithmetic Logic Unit) C. DIMM D. GPU Answer: B 34\. Which RAID level provides redundancy and allows for the replacement of a failed drive without losing data? A. RAID 0 B. RAID 1 C. RAID 5 D. RAID 6 Answer: C 35\. Which type of memory is often used in cache for the CPU? A. DRAM B. SRAM C. ECC RAM D. VRAM Answer: B 36\. Which of the following connector types is commonly used for analog video output? A. HDMI B. DisplayPort C. VGA D. DVI Answer: C 37\. What voltage is provided by the yellow wire in a standard ATX power supply? A. +3.3V B. +5V C. +12V D. -12V Answer: C 38\. Which expansion card is most commonly used to add Wi-Fi connectivity to a desktop computer? A. Sound card B. Network interface card (NIC) C. Video card D. RAID controller Answer: B 39\. What is the primary function of a heat sink in a computer? A. Power regulation B. Voltage conversion C. Cooling the CPU or GPU D. Reducing electromagnetic interference Answer: C 40\. What type of printer uses a fuser to adhere toner to paper? A. Inkjet B. Laser C. Thermal D. Dot matrix Answer: B Section 4: Virtualization and Cloud Computing (11%) 41\. Which cloud model provides users with computing infrastructure such as virtual machines and storage? A. IaaS B. SaaS C. PaaS D. XaaS Answer: A 42\. Which of the following is a benefit of virtualization? A. Enhanced physical security B. Better network throughput C. Reduced hardware costs D. Faster processor speeds Answer: C 43\. Which type of hypervisor is installed directly on the hardware of a host machine? A. Type 1 B. Type 2 C. Hosted hypervisor D. Emulated hypervisor Answer: A Section 5: Hardware and Network Troubleshooting (29%) 44\. A computer is making a clicking noise, and files are becoming inaccessible. What is the most likely cause? A. Failing power supply B. Overheating CPU C. Faulty hard drive D. Failing RAM Answer: C 45\. What is the final step in the CompTIA troubleshooting methodology? A. Test the theory B. Verify functionality C. Document findings D. Implement a solution Answer: C