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.
Practice Questions
700
≈ 7 practice exams
Duration
90 minutes
Passing Score
675/900
Difficulty
FoundationalLast Updated
Mar 2026
Use this 220-1101 practice exam to prepare for CompTIA A+ Core 1 (220-1101) with realistic questions, detailed explanations, and focused study modes. The practice bank includes 700 questions for CompTIA 220-1101, so you can review the exam steadily instead of relying on one long cram session.
As you practice, pay extra attention to recurring topics such as Mobile Devices, Networking, Hardware, Virtualization and Cloud Computing, and Hardware and Network Troubleshooting. Start with short sessions to identify weak areas, then move into timed quizzes once your accuracy is consistent.
The explanations are especially useful when you want to connect exam wording to the responsibilities and scenarios described in the official certification guidance. Use the free preview first, then unlock the full question bank when you are ready to build a complete study routine.
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 answers and explanations. The full bank has 700 questions, enough for 7 full-length practice exams.
Preview — answers shown1. A technician at Fabrikam is performing maintenance on a laser printer and needs to replace the toner cartridge. During the procedure, toner powder spills inside the printer. Which action should the technician take to safely clean up the spilled toner? (Select one!)
Explanation
A toner-rated vacuum with a fine-particle HEPA filter is specifically designed to safely collect toner powder. Standard office vacuums lack the filtration to capture the extremely fine toner particles, which can pass through the filter and become airborne, creating a respiratory hazard. Additionally, toner particles can generate static charges inside a standard vacuum, potentially causing a fire or explosion. Compressed air would scatter toner particles throughout the surrounding area, creating a larger contamination zone and respiratory risk. A damp cloth may smear toner and does not effectively collect the fine particles from internal printer components. Proper toner cleanup is both a health safety and equipment maintenance concern.
2. A mobile device technician at Fabrikam is configuring a company-issued smartphone. The organization wants to activate cellular service without using a physical SIM card and needs the ability to remotely provision multiple carrier profiles on the device. Which technology should the technician use? (Select one!)
Explanation
An eSIM (embedded SIM) is a programmable chip built into the device that can be remotely provisioned with carrier profiles without requiring a physical SIM card. eSIM supports multiple carrier profiles, allowing organizations to switch carriers or manage cellular plans remotely, which is ideal for corporate device management. A Nano-SIM is a physical card that requires manual insertion and does not support remote provisioning of multiple profiles. A Micro-SIM is a larger physical SIM format that is outdated and also lacks remote provisioning capability. Bluetooth tethering shares another device's internet connection but does not activate cellular service on the smartphone itself.
3. A technician at Northwind Traders is building a new workstation and needs to understand the power delivery capabilities of different PCIe GPU power connectors. The workstation will use a high-end GPU that requires more than 300W of power through its power connector alone. Which connector supports up to 600W and is designed specifically for modern high-performance GPUs? (Select one!)
Explanation
The 12VHPWR 16-pin connector supports up to 600W of power delivery through a single cable and was designed specifically for modern high-performance GPUs such as the NVIDIA RTX 4000 and 5000 series. It was introduced as part of the PCIe 5.0 CEM specification and adopted in the ATX12V 3.0 power supply standard. A single 6-pin PCIe connector provides only 75W, which is far below the 600W requirement. Dual 6+2 pin connectors provide 150W each for a maximum of 300W total, which still falls short. The 24-pin ATX connector provides main power to the motherboard rather than directly to the GPU and serves an entirely different purpose in the system's power delivery chain.
4. A field technician at Fabrikam is setting up a new office location and needs to connect a cable modem provided by the ISP to the SOHO router. The cable modem has a coaxial input from the wall and an Ethernet output. Which connector types are used on each end of this setup? (Select one!)
Explanation
Cable modems use an F-type connector for the coaxial cable input from the wall, which carries the DOCSIS signal over RG-6 coaxial cable. The Ethernet output uses a standard RJ-45 connector for the connection to the SOHO router. BNC connectors are used in legacy coaxial networks and some video applications, not residential cable internet. RJ-11 connectors are used for telephone and DSL connections, not Ethernet. LC connectors are fiber optic connectors, and RG-6 refers to the cable type rather than a connector type.
5. A technician at Tailspin Toys is troubleshooting a desktop workstation that displays a proprietary crash screen (blue screen) with a memory-related error code during normal operation. The workstation has two 16 GB DDR4 RAM modules installed. The technician suspects one module may be failing. Which troubleshooting approach should the technician take to identify the faulty module? (Select one!)
Explanation
Testing one RAM module at a time is the correct isolation technique for identifying a failing memory module. By removing one module and running the system with only the other installed, the technician can determine which specific module is causing the crash. If the system is stable with one module but crashes with the other, the faulty module is identified. Replacing both modules simultaneously would resolve the issue but wastes a functional module and does not identify the root cause. Increasing RAM voltage is risky and could damage components — it does not fix a physically failing module. Running a disk check tests storage, not memory, and would not resolve memory-related crash errors.
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