Which of the following EBS volume types is designed for high-performance SSD volumes for I/O-intensive applications?

Provisioned IOPS (SSD) volumes are specifically designed for high-performance SSD usage, making them ideal for I/O-intensive applications, such as large databases and applications requiring frequent read/write operations. These volumes allow users to specify the number of IOPS they need, providing consistent performance under heavy workloads. This capability is critical for performance-sensitive applications that demand low latency and high throughput.

General Purpose SSD volumes also serve well for a variety of workloads, offering a good balance of price and performance. However, they might not provide the same level of performance consistency as Provisioned IOPS volumes for applications that require very high input/output operations per second.

Cold HDD and Magnetic (Standard) volume types are intended for less demanding applications that do not require high IOPS or low latency. Cold HDD is suitable for infrequent access data, while Magnetic volumes are designed for workloads that are not performance-sensitive, such as archiving or backup data.

Thus, for high-performance needs in I/O-intensive applications, Provisioned IOPS (SSD) is the most appropriate choice, as it ensures the necessary performance specifications are met consistently.