SecurityX CAS-005 cloud architecture guidance emphasizes horizontal scaling for workloads that need to handle both predictable and fluctuating growth over time. Horizontal scaling allows the infrastructure to add nodes for both compute and storage dynamically, providing elasticity to meet fluctuating computational demands while accommodating exponential storage growth.
Vertical scaling (B) has hardware limits and is not as flexible for large, sustained growth.
CDN (A) is optimized for content distribution, not intensive compute workloads.
Load balancing (C) distributes workloads but does not address scaling for data growth.