Topic 1 Question 691
2 つ選択A solutions architect is designing a shared storage solution for a web application that is deployed across multiple Availability Zones. The web application runs on Amazon EC2 instances that are in an Auto Scaling group. The company plans to make frequent changes to the content. The solution must have strong consistency in returning the new content as soon as the changes occur.
Which solutions meet these requirements?
Use AWS Storage Gateway Volume Gateway Internet Small Computer Systems Interface (iSCSI) block storage that is mounted to the individual EC2 instances.
Create an Amazon Elastic File System (Amazon EFS) file system. Mount the EFS file system on the individual EC2 instances.
Create a shared Amazon Elastic Block Store (Amazon EBS) volume. Mount the EBS volume on the individual EC2 instances.
Use AWS DataSync to perform continuous synchronization of data between EC2 hosts in the Auto Scaling group.
Create an Amazon S3 bucket to store the web content. Set the metadata for the Cache-Control header to no-cache. Use Amazon CloudFront to deliver the content.
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コメント(7)
Correct answer BE
👍 8Andy_092024/02/05- 正解だと思う選択肢: BE
B & E seems to be the most logic
👍 5Cali1822024/02/07 - 正解だと思う選択肢: BE
A - Volume Gateway is typically on-prem and optimized for hybrid setups, not for fully cloud-based solutions. B - EFS provides a fully managed, shared file storage system that works across multiple AZs. C - Even with Multi-Attach, sharing EBS volumes across AZs is pretty complex and error-prone. D - DataSync is designed for periodic synchronization and not real-time, frequent updates. E - The "no-cache" header ensures the content is always fetched fresh, and CloudFront delivers it efficiently with reduced latency. Although S3 is less efficient for frequent updates compared to a shared file system like EFS, but not a problem here.
👍 3LeonSauveterre2024/12/14
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