Which security software is designed to protect a system from malware?

• A. Anti-Virus Software
• B. AdHoc
• C. AES
• D. Adware

Answer: (A)

Anti-virus software is the tool built to guard a system against malware. It works by continuously scanning files, programs, and real-time actions for known malware signatures and suspicious behavior, then blocks threats and removes them if they slip through. Regular updates to its malware definitions and sometimes cloud-based checks help it recognize new threats as they appear. Real-time protection, quarantine, and automated removal are core features that make it effective at preventing malware from causing harm.

Encryption algorithms like AES protect data by encoding it, not by stopping malware from running or spreading. Adware is intrusive software that displays ads or tracks you, and it does not provide malware protection. AdHoc isn’t a security product designed to protect a system. So the option that best fits the task is anti-virus software.