Học liệu
Nắm vững mọi nội dung của kỳ thi, bằng ngôn ngữ dễ hiểu.
Operating Systems
The operating system is the software layer that manages hardware, runs applications, and provides the interface people use every day. A Core 2 technician must be comfortable across Windows editions and tools, and must also recognize the fundamentals of macOS, Linux, and mobile operating systems. This chapter covers how to identify the right Windows edition, use the graphical and command-line tools that keep a system healthy, understand file systems and partitioning, and work confidently in non-Windows environments.
Security
Security is about protecting systems, data, and people from threats. A technician must recognize the common forms of malware and social engineering, apply authentication and access controls correctly, and harden devices against attack. This chapter walks through the threats you will encounter, the defenses that stop them, and the everyday practices that keep both hardware and data safe.
Software Troubleshooting
Software problems range from a single app that will not launch to a system-wide malware infection. Effective troubleshooting follows a methodical approach: gather symptoms, form a likely hypothesis, test the smallest change first, and verify the fix. This chapter covers diagnosing operating-system failures, application and mobile issues, and the structured process for removing malware safely.
Operational Procedures
Operational procedures are the professional practices that keep IT work safe, consistent, and accountable. They include documentation, change management, physical and electrical safety, privacy and environmental responsibility, professional communication, and the basics of scripting for automation. This chapter explains why these procedures matter and how a technician applies them every day.
Practice by topic
Jump straight into free practice questions for any single CompTIA A+ Core 2 content area.