Chapter 1
Security Architecture
Course: Comptia Securityx Cas 005
Subject: Comptia Securityx Cas 005 Practice Exam
Chapter: Security Architecture
Designing a robust and secure infrastructure is essential for meeting organizational requirements, achieving scalability, ensuring resiliency, and securely integrating software applications within an enterprise architecture. This section breaks down key aspects such as scalability, resiliency, automation, performance, containerization, virtualization, content delivery networks (CDNs), and caching, providing technical details, real-life examples, and security considerations.
1. Scalability
Scalability refers to an infrastructure’s ability to handle increased load or demand by adding resources. It can be achieved in two primary ways:
a. Vertical Scalability (Scaling Up)
- Description: Adding more resources (e.g., CPU, memory) to an existing server or node to improve performance.
- Use Case: Ideal for applications with heavy resource demands that cannot be easily distributed across multiple nodes.
- Security Considerations: Ensures proper configuration and monitoring to avoid resource bottlenecks and attacks like Distributed Denial-of-Service (DDoS).
- Real-Life Example: A database server is upgraded with more memory and CPU power to accommodate increasing query demands without splitting the database across multiple instances.