Prepare for the CompTIA A+ Certification Exam: Core 1 (2025) exam with our extensive collection of questions and answers. These practice Q&A are updated according to the latest syllabus, providing you with the tools needed to review and test your knowledge.
QA4Exam focus on the latest syllabus and exam objectives, our practice Q&A are designed to help you identify key topics and solidify your understanding. By focusing on the core curriculum, These Questions & Answers helps you cover all the essential topics, ensuring you're well-prepared for every section of the exam. Each question comes with a detailed explanation, offering valuable insights and helping you to learn from your mistakes. Whether you're looking to assess your progress or dive deeper into complex topics, our updated Q&A will provide the support you need to confidently approach the CompTIA 220-1201 exam and achieve success.
A user reports slow internet browsing. The technician finds high CPU and memory usage, and pop-ups occur every minute. Which of the following should the technician do next?
High resource usage along with frequentpop-upsare strong signs of amalware infection. The next logical step is toupdate anti-malware definitionsandrun a full scanto detect and remove threats.
Option A:Network performance is likely not the root cause local system behavior points to malware.
Option B:Drivers affect hardware functionality; they don't resolve malware-related slowness.
Option D:DHCP issues usually cause IP conflicts or no network access, not CPU spikes or pop-ups.
CompTIA A+ Core 1 Exam Objective Reference:
Objective 4.2: Given a scenario, detect, remove, and prevent malware using appropriate tools and methods.
A technician upgrades a CPU heat sink with a higher-performing model. While stress testing the computer, the technician finds that the CPU temperatures have drastically increased. Which of the following is most likely causing the issue?
Whenever a CPU heat sink is removed or replaced, thermal paste must be reapplied. Thermal paste fills microscopic gaps between the CPU heat spreader and the heat sink, ensuring efficient heat transfer. Without it, there is a significant air gap, which acts as an insulator, causing CPU temperatures to rise dramatically even under light load. CompTIA A+ stresses thermal compound application as a key step in CPU cooling installation.
The scenario indicates that temperatures increased drastically after upgrading to a better heat sink. A higher-performing heat sink should improve temperatures, not worsen them---unless a critical installation step was missed. Missing thermal paste is the most common cause of this symptom and easily explains the sudden overheating.
Decreased CPU voltage would lower temperatures, not raise them. Higher fan RPM increases cooling efficiency, not reduces it. Airflow interruption is possible but less likely in a simple heat sink upgrade scenario unless the technician installed the CPU cooler incorrectly; however, the most direct and common cause described by CompTIA is missing thermal paste.
Thus, D is the correct answer.
Which of the following statements is true when comparing DDR3 RAM and DDR4 RAM?
The correct statement when comparing DDR3 and DDR4 memory technologies is that DDR4 offers faster data transfer rates compared to DDR3. According to CompTIA Core 1 (220-1201) memory and hardware objectives, DDR4 was designed as the successor to DDR3 and provides several performance and efficiency improvements.
DDR3 memory typically operates at data transfer rates ranging from 800 MT/s to 2133 MT/s, while DDR4 starts at 2133 MT/s and can scale significantly higher depending on the module and platform. This increased transfer rate allows DDR4 to handle more data per second, improving overall system performance, especially in modern systems and multitasking environments.
Option B is incorrect because DDR4 achieves higher bandwidth, not DDR3. Option C is incorrect because DDR4 operates at a lower voltage (typically 1.2V) compared to DDR3 (typically 1.5V), making DDR4 more power efficient. Option D is also incorrect because DDR4 is better suited for low-power environments due to its reduced voltage requirements.
CompTIA emphasizes understanding RAM generations, including differences in speed, bandwidth, and power consumption, making DDR4's higher data transfer rates a key distinguishing factor.
CompTIA A+ Core 1 (220-1201) Official Study Guide -- RAM Technologies, DDR Standards, and Performance Characteristics
A developer wants to ensure their critical data is protected from hard drive failure. Their workstation has two hard drives. Which RAID level should they use?
RAID 1 is known as mirroring. It duplicates all data to both drives simultaneously, providing redundancy in the event of a single drive failure. CompTIA A+ teaches that RAID 1 is ideal when reliability is the priority and only two drives are available exactly matching this scenario.
RAID 0 offers no redundancy. RAID 5 requires three or more drives. RAID 10 requires four or more drives.
Since the workstation has only two drives, RAID 1 is the only RAID configuration providing data protection and is heavily featured in CompTIA's coverage of RAID technologies, their requirements, and their purposes in fault tolerance.
A multifunction printer in a small office recently had issues with scan-to-email functionality. The manufacturer has an update ready to fix the printer issues. Which of the following would a technician most likely deploy to remediate the issue?
Firmware is the embedded software on a device such as a printer. Manufacturers often release firmware updates to resolve hardware-specific functionality issues, such as scan-to-email or security vulnerabilities.
From CompTIA A+ 220-1101 Official Study Guide, Objective 3.4 -- Printer installation and maintenance:
''Firmware updates provide bug fixes and add new features for multifunction printers. Apply firmware updates to resolve device-specific issues.''
Verified Source:
CompTIA A+ Core 1 (220-1101) Official Study Guide, Chapter 3: Printer Maintenance
CompTIA Exam Objectives 220-1101, Domain 3.4
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