Q35 — AWS SAA-C03 Ch.14

Question 35 of 100 | ← Chapter 14

Q1035. A company currently runs an on-premises stock trading application by using Microsoft Windows Server. The company wants to migrate the application to the AWS Cloud. The company needs to design a highly available solution that provides low-latency access to block storage across multiple Availability Zones.Which solution will meet these requirements with the LEAST implementation effort?

• A. Configure a Windows Server cluster that spans two Availability Zones on Amazon EC2 instances. Install the application on both cluster nodes. Use Amazon FSx for Windows File Server as shared storage between the two cluster nodes. ✓
• B. Configure a Windows Server cluster that spans two Availability Zones on Amazon EC2 instances. Install the application on both cluster nodes. Use Amazon Elastic Block Store (Amazon EBS) General Purpose SSD (gp3) volumes as storage attached to the EC2 instances. Set up application-level replication to sync data from one EBS volume in one Availability Zone to another EBS volume in the second Availability Zone.
• C. Deploy the application on Amazon EC2 instances in two Availability Zones. Configure one EC2 instance as active and the second EC2 instance in standby mode. Use an Amazon FSx for NetApp ONTAP Multi-AZ file system to access the data by using Internet Small Computer Systems Interface (iSCSI) protocol.
• D. Deploy the application on Amazon EC2 instances in two Availability Zones. Configure one EC2 instance as active and the second EC2 instance in standby mode. Use Amazon Elastic Block Store (Amazon EBS) Provisioned IOPS SSD (io2) volumes as storage attached to the EC2 instances. Set up Amazon EBS level replication to sync data from one io2 volume in one Availability Zone to another io2 volume in the second Availability Zone.

Correct Answer: A. Configure a Windows Server cluster that spans two Availability Zones on Amazon EC2 instances. Install the application on both cluster nodes. Use Amazon FSx for Windows File Server as shared storage between the two cluster nodes.

Explanation

A OR C.To migrate the stock trading application to AWS while ensuring high availability, low-latency access to block storage across multiple Availability Zones, and with the least implementation effort, the best solution is:A. Configure a Windows Server cluster that spans two Availability Zones on Amazon EC2 instances. Install the application on both cluster nodes. Use Amazon FSx for Windows File Server as shared storage between the two cluster nodes.Explanation:\1. Windows Server Cluster: - Setting up a Windows Server cluster across two Availability Zones provides high availability by allowing one node to take over if the other fails. This is critical for a stock trading application that requires reliability.\2. Amazon FSx for Windows File Server: - FSx for Windows File Server provides fully managed, highly available file storage that is accessible from multiple EC2 instances. It supports the SMB protocol, making it ideal for Windows applications. It also simplifies the setup compared to managing block storage replication manually.\3. Low-Latency Access: - FSx is designed for low-latency access and is optimized for Windows-based workloads, ensuring that the stock trading application can access data quickly and efficiently.\4. Least Implementation Effort: - Using FSx reduces the complexity involved in managing storage replication or application-level synchronization, allowing the focus to remain on the application itself.Evaluation of Other Options:B. Configure a Windows Server cluster with Amazon EBS General Purpose SSD (gp3) volumes: - While this option provides a clustering solution, using EBS volumes would require manual setup of replication and might introduce latency issues since EBS volumes are not natively shared across instances.C. Deploy the application with Amazon FSx for NetApp ONTAP: - Although this option could work, it involves more complexity and might not be necessary for the requirements stated, especially when FSx for Windows File Server is a more straightforward option for Windows-based applications.D. Deploy the application with EBS Provisioned IOPS SSD (io2) volumes: - This option also requires manual replication setup, which increases implementation effort. It does not provide the shared storage capabilities needed for active-passive clustering without additional complexity.Conclusion:Option A offers a robust, highly available solution that meets the requirements for low-latency access to block storage while minimizing complexity and implementation effort.