CompTIA A+ Core 2 (220-1102) — Question 399

Which of the following protects a mobile device against unwanted access when it is left unattended?

Answer options

• A. PIN code
• B. OS updates
• C. Antivirus software
• D. BYOD policy

Correct answer: A

Explanation

A PIN code is a direct form of access control, requiring a specific input to unlock the device, thereby preventing unauthorized access. OS updates, antivirus software, and BYOD policies are important for overall security and protection but do not specifically address the immediate concern of access when a device is left unattended.