CompTIA • 220-1101
CompTIA A+ Core 1 validates foundational IT skills in hardware, networking, mobile devices, virtualization, and cloud computing. It is the first of two exams required to earn the CompTIA A+ certification for IT support professionals.
Questions
700
Duration
90 minutes
Passing Score
675/900
Difficulty
FoundationalLast Updated
Mar 2026
CompTIA A+ Core 1 (220-1101) is the first exam in the two-part A+ certification series, validating foundational IT skills essential for entry-level technical support roles. This exam measures competency in hardware components, networking protocols and configuration, mobile device management, virtualization concepts, and troubleshooting methodologies. Core 1 focuses on the infrastructure and hardware foundations that support modern IT environments, while its companion exam (Core 2) addresses operating systems, security, and operational procedures. The certification is widely recognized by enterprises and government agencies, including DoD 8140 approval for technical support specialist and cybersecurity infrastructure roles.
CompTIA A+ Core 1 is designed for IT professionals pursuing foundational certification in technical support and IT operations. Target roles include IT support specialists, help desk technicians, technical support specialists, junior system administrators, and cyber defense infrastructure support specialists. Candidates typically have 12 months of hands-on experience in IT support roles, though the exam is accessible to those with formal training and self-study. This certification serves as an entry point into IT careers for individuals transitioning from other fields or those seeking to validate self-taught technical knowledge.
CompTIA recommends 12 months of hands-on experience in an IT support specialist job role before attempting the exam, though this is not a formal requirement. Candidates should have foundational knowledge of hardware components, basic networking concepts, and familiarity with Windows operating systems. Practical experience troubleshooting computers, printers, mobile devices, and SOHO networks is strongly beneficial. Those without direct experience can prepare through formal training, online courses, CompTIA study guides, and hands-on lab environments that simulate real-world IT support scenarios.
Core 1 features a maximum of 90 questions delivered in 90 minutes, with a passing score of 675 out of 900 points. Question types include multiple-choice (single answer and multiple response), drag-and-drop, and performance-based questions that simulate real IT troubleshooting tasks. The exam is administered through Pearson VUE testing centers both online and in-person. Performance-based questions require candidates to perform actual tasks such as installing hardware, configuring network settings, or troubleshooting systems within a virtual environment. The exam does not include unscored survey questions.
CompTIA A+ certification significantly enhances career prospects in IT support and technical roles. A+ certified professionals earn an average of $63,909 annually in the United States, with salaries ranging from $49,000 to over $101,000 depending on experience, location, and industry. The certification is required by numerous federal government agencies including DoD and Department of Homeland Security for specific pay grades and positions, creating substantial job opportunities in the government/defense sector which pays 20-30% above average. The Bureau of Labor Statistics projects approximately 50,500 annual job openings in technical support roles, making A+ certification a valuable credential for entering this market. Holding A+ certification demonstrates employer-valued technical competency and serves as a stepping stone to advanced certifications including Network+, Security+, and specialized cybersecurity credentials that can increase earning potential by $10,000-$15,000 or more.
5 sample questions with correct answers and explanations. Start a practice session to test yourself across all 700 questions.
1. A technician at Contoso is upgrading a desktop workstation's storage. The motherboard has two M.2 slots: one labeled 'M key' and another labeled 'B+M key.' The technician wants to install the fastest possible SSD in the M key slot. Which interface and protocol combination should the technician select for the M key slot? (Select one!)
Explanation
The M key M.2 slot supports PCIe NVMe drives, and PCIe 4.0 x4 with the NVMe protocol delivers approximately 7,000 MB/s sequential throughput, making it the fastest option. SATA III with AHCI is limited to approximately 550 MB/s regardless of physical form factor. PCIe 3.0 x4 with AHCI is incorrect because NVMe, not AHCI, is the protocol used with PCIe-based M.2 drives. USB 3.2 Gen 2x2 is not an M.2 interface and does not use NVMe protocol for storage in M.2 slots.
2. A technician at Tailspin Toys receives a call from a user whose laptop trackpad has become unresponsive and the bottom case appears slightly warped. The laptop is three years old and has been in continuous daily use. What should the technician do FIRST? (Select one!)
Explanation
An unresponsive trackpad combined with a warped bottom case on an aging laptop strongly indicates a swollen lithium-ion battery. Battery swelling occurs when internal chemical degradation produces gas buildup, causing the battery to expand. This expansion pushes against the trackpad from below, disabling it, and deforms the case. A swollen battery is a serious safety hazard — it can rupture, catch fire, or explode. The technician must prioritize safety by instructing the user to stop using the laptop immediately. Running diagnostics or updating drivers does not address the physical hazard. Continuing to use the laptop with an external mouse ignores a dangerous condition that requires immediate attention. The battery must be safely removed and properly disposed of at a certified recycling facility.
3. A network technician at Fabrikam is troubleshooting a workstation that cannot access the internet. The technician runs ipconfig and sees the IP address 169.254.45.12 with a subnet mask of 255.255.0.0. The technician then successfully pings another computer on the same subnet with a 169.254.x.x address. Which two steps should the technician take to restore internet connectivity? (Select two!)
Multiple correct answersExplanation
The 169.254.x.x address is an APIPA (Automatic Private IP Addressing) address, which indicates the workstation could not reach a DHCP server to obtain a valid network configuration. The technician should first verify the DHCP server is operational and reachable, then release the current APIPA address and renew to obtain a proper DHCP lease. The NIC is functioning correctly since it can communicate with other devices on the same subnet. The 169.254.x.x range is link-local only and cannot be routed to the internet even with a gateway configured. While checking the physical connection is reasonable, the ability to ping another host confirms Layer 1 and Layer 2 connectivity is working, pointing to a DHCP issue instead.
4. A small business owner at Northwind Traders needs to print invoices on multipart carbon copy forms so that both the business and the customer receive a physical copy simultaneously. Which printer technology should the technician recommend? (Select one!)
Explanation
Impact or dot matrix printers are the only printer type that can print on multipart carbon copy forms. They work by physically striking pins against a ribbon onto the paper, and the impact force transfers the impression through multiple carbon layers simultaneously. Laser printers use heat and toner which cannot create the physical impact needed for carbon copies. Inkjet printers spray liquid ink which does not penetrate through carbon layers. Thermal printers use heat-sensitive paper or ribbon transfer and cannot produce the mechanical force required for multipart forms.
5. A technician at Adatum is tasked with setting up a print solution for a warehouse that requires printing shipping labels on pre-cut adhesive stock. The labels must be durable and resistant to fading. Which printer technology should the technician recommend? (Select one!)
Explanation
Thermal transfer printers use a heated ribbon to transfer ink onto the label material, producing durable, permanent prints that resist fading, moisture, and abrasion. This makes them ideal for shipping labels that must remain legible throughout the logistics chain. Direct thermal printers use heat-sensitive paper without a ribbon, which makes the prints susceptible to fading over time when exposed to heat, light, or friction — unsuitable for shipping labels that may be handled extensively. Laser printers can print on label stock but are not designed for continuous label roll printing and may jam with adhesive materials. Inkjet printers produce high-quality output but the ink can smear when exposed to moisture, making them unreliable for warehouse environments.
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