Q17Cloud Computing

A Hybrid Cloud combines public and private cloud environments. The main benefit is agility: an organization can keep sensitive data on-premises (private cloud) while utilizing the public cloud for bursty, high-volume workloads (cloud bursting). This provides a balance of cost-efficiency and security. However, the drawbacks include complex infrastructure management, challenging network integration, and the need for robust security policies that bridge two different environments.

Benefits

• Cost Optimization: Baseline workloads run on owned private infrastructure while temporary demand spikes burst into the pay-as-you-go public cloud, avoiding the cost of provisioning for peak capacity year-round.
• Regulatory Compliance: Sensitive or regulated data can remain on private infrastructure to satisfy data sovereignty laws, while non-sensitive workloads run publicly.
• Flexibility: Organizations can choose the best environment for each workload, keeping legacy systems on-premises while modernizing new applications in the public cloud.
• Business Continuity: The public cloud can serve as a disaster recovery site for on-premises systems, improving overall availability.

Drawbacks

• Integration Complexity: Connecting on-premises networks to the public cloud requires VPNs or dedicated links, and applications must be re-architected to work across both environments.
• Security Consistency: Maintaining uniform identity management, encryption, and firewall policies across two different platforms increases the attack surface if not carefully managed.
• Operational Overhead: IT staff need expertise in both the private virtualization stack and the public cloud provider's tools, increasing training and management costs.
• Latency: Applications split across environments may suffer from network latency when data must travel between the private data center and the public cloud.