A security infrastructure strategy where multiple independent layers of security controls—such as firewalls, MFA, encryption, and awareness training—are deployed across an enterprise is: MCQ with Answer and Explanation

Explanation:
Security controls are measures implemented to protect assets, reduce risks, and ensure the confidentiality, integrity, and availability of information.

Explanation:
CAPTCHA is a test used to determine whether a user is human, helping to prevent automated bots from performing malicious actions like spamming or brute-force attacks.

Explanation:
Signature-based engines scan storage objects looking for byte patterns or static cryptographic hashes known to correspond to established malware databases.