Q33 — AWS SAA-C03 Ch.11

Question 33 of 100 | ← Chapter 11

Q733. A company is planning to deploy a business-critical application in the AWS Cloud. The application requires durable storage with consistent, low-latency performance.Which type of storage should a solutions architect recommend to meet these requirements?

Correct Answer: C. Provisioned IOPS SSD Amazon Elastic Block Store (Amazon EBS) volume

Explanation

To meet the requirement of durable storage with consistent, low-latency performance for a business-critical application in the AWS Cloud, the most suitable type of storage to recommend is:C. Provisioned IOPS SSD Amazon Elastic Block Store (Amazon EBS) volume.Option C, recommending a Provisioned IOPS SSD Amazon EBS volume, is the most appropriate choice to meet the requirements:- Provisioned IOPS SSD Amazon EBS volume: Provisioned IOPS (input/output operations per second) SSD volumes are designed to provide predictable and consistent performance for I/O-intensive workloads. They are ideal for applications that require low-latency storage with a high number of IOPS and consistent throughput.Provisioned IOPS SSD volumes offer the following benefits for a business-critical application:\1. Consistent performance: Provisioned IOPS volumes allow you to specify the desired number of IOPS when creating the volume. This ensures that the application receives a consistent level of performance, regardless of the workload or other factors.\2. Low-latency: The use of SSD technology ensures low-latency access to data, resulting in fast response times for read and write operations.\3. Durability: Amazon EBS volumes are highly durable, with data automatically replicated within an Availability Zone (AZ) to protect against hardware failures.\4. Scalability: Provisioned IOPS volumes can be easily scaled up or down based on the application's changing performance requirements.Instance store volume (Option A) provides temporary block-level storage that is directly attached to the underlying physical instance. However, it is not durable, as the data is lost if the instance is terminated, fails, or is stopped.Amazon ElastiCache for Memcached cluster (Option B) is an in-memory caching service that is used to improve performance by reducing the load on backend databases. While it can provide low-latency performance, it is not suitable for durable storage requirements, as the data is stored in memory and can be evicted based on caching policies or instance failures.Throughput Optimized HDD Amazon EBS volume (Option D) is designed for workloads that require high throughput and large, sequential I/O operations. While it offers high throughput, it may not provide the consistent low-latency performance required by a business-critical application.Therefore, the type of storage that best meets the requirements is C: Provisioned IOPS SSD Amazon EBS volume. It offers durable storage with consistent, low-latency performance, making it well-suited for business-critical applications.