SOA-C02 · Question #547
SOA-C02 Question #547: Real Exam Question with Answer & Explanation
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Question
A company has a cluster of Linux Amazon EC2 Spot Instances that read many files from and write many files to attached Amazon Elastic Block Store (Amazon EBS) volumes. The EC2 instances are frequently started and stopped. As part of the process when an EC2 instance starts, an EBS volume is restored from a snapshot. EBS volumes that are restored from snapshots are experiencing initial performance that is lower than expected. The company's workload needs almost all the provisioned IOPS on the attached EBS volumes. The EC2 instances are unable to support the workload when the performance of the EBS volumes is too low. A SysOps administrator must implement a solution to ensure that the EBS volumes provide the expected performance when they are restored from snapshots. Which solution will meet these requirements?
Options
- AConfigure fast snapshot restore (FSR) on the snapshots that are used.
- BRestore each snapshot onto an unencrypted EBS volume. Encrypt the EBS volume when the
- CFormat the EBS volumes as XFS file systems before restoring the snapshots.
- DIncrease the Linux read-ahead buffer to 1 MiB.
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