Which of the following techniques for ensuring cloud datacenter storage resiliency uses encrypted chunks of data?

Data dispersion is a technique that enhances cloud datacenter storage resiliency by breaking data into smaller chunks and spreading these chunks across different physical locations or storage systems. This method not only helps in increasing availability and ensuring that data remains intact in the event of a hardware failure or disaster but also employs encryption to protect the data chunks during transmission and storage. By encrypting the chunks, the technique ensures that, even if a chunk is intercepted or accessed by unauthorized individuals, the data remains secure and unreadable without the proper decryption key.

This approach is particularly valuable in a cloud environment where data is often stored across several datacenters for redundancy and durability. The combination of data dispersion with encryption addresses two major concerns: data resiliency and security, making it a robust solution for protecting sensitive information in the cloud.

In contrast, other techniques such as RAID focus on redundancy and performance within a single storage unit (or set of interconnected drives), but they do not inherently deploy data chunking or encryption across various locations. SANs provide access to consolidated storage from multiple servers but do not typically involve encrypted data dispersion. Cloud-bursting involves the use of public cloud resources to supplement on-premises capacity and primarily pertains to scalability rather than data storage resiliency mechanisms like encryption