(ISC)2 Certified in Cybersecurity Practice Exam

What is the purpose of a layered defense approach in cybersecurity?

1. To add redundancy to encryption processes

2. To provide multiple consecutive controls for asset protection

3. To streamline security operations

4. To minimize user privileges

The correct answer is: To provide multiple consecutive controls for asset protection

The purpose of a layered defense approach in cybersecurity is to provide multiple consecutive controls for asset protection. This strategy, often referred to as "defense in depth," emphasizes that no single security measure is foolproof. By implementing multiple layers of security, organizations can protect their assets from various threats and vulnerabilities. Each layer works to defend against different types of attacks, thereby enhancing overall security posture. For instance, the approach may include a combination of firewalls, intrusion detection systems, antivirus software, and user training. If one layer is compromised, others remain in place to mitigate risks and prevent unauthorized access. This redundancy helps to ensure that even if a threat bypasses one control, others will still provide protection, ultimately making it much harder for attackers to breach the system. While adding redundancy to encryption processes, streamlining security operations, and minimizing user privileges are important aspects of a cybersecurity strategy, they do not encapsulate the fundamental idea behind the layered defense approach, which is primarily about creating multiple tiers of protection to safeguard assets more effectively.