NVMe (Non-Volatile Memory Express) is the interface most commonly associated with SSDs, especially in modern cloud and data center environments, because it was designed specifically to take advantage of flash storage performance. NVMe connects over PCIe, enabling far higher throughput and dramatically lower latency than legacy storage interfaces. It also supports deep parallelism through multiple queues, which aligns well with high IOPS workloads commonly seen in cloud deployments such as databases, virtualization, and high-transaction applications. In contrast, SATA and SAS were originally designed around traditional spinning disks and their command sets, and while SSDs can use SATA/SAS, those interfaces can become a bottleneck compared to NVMe. iSCSI is not a disk interface like NVMe; it is a network storage protocol used to transport SCSI commands over IP networks, and it can be used with both HDD- and SSD-backed storage arrays. From the Cloud+ CV0-004 perspective, selecting NVMe supports objectives related to performance optimization, storage architecture choices, and meeting workload latency requirements.

To resolve the issue of a REST API endpoint timing out when too many users attempt to call the API simultaneously, the developer should consider implementing rate limiting. Rate limiting controls the number of requests a user can submit in a given amount of time, preventing overuse of the API resources and ensuring availability for all users. References: CompTIA Cloud+ Study Guide (Exam CV0-004) - Chapter on Cloud Service Maintenance and Management

Explanation:
For the Web Server:
* CPU: 2 vCPUs
* RAM: 2GB
* Disk Speed: 10MBps
For the Database Server:
* CPU: 6 vCPUs
* RAM: 128GB
* Disk Speed: 110MBps
These selections are based on maintaining a 20% overhead above the average resource consumption and rounding up to the next available option in the dropdowns provided.

VPC peering provides secure, private communication between cloud environments without the need for provisioning additional hardware or appliances. It allows direct network connectivity between two Virtual Private Clouds (VPCs), enabling resources in either VPC to communicate with each other using private IP addresses.
Cloud networking options such as VPC peering and its benefits are included in the networking concepts of cloud environments in the CompTIA Cloud+ certification.

The best way to grant full access to a specific cloud resource to a branch in Spain, while other branches have only read access, is to create a network security group with the required permissions. This group can be configured to allow full access to users within the branch's IP range while restricting others to read-only access. References: CompTIA Cloud+ Study Guide (Exam CV0-004) - Chapter on Security Configuration