ExpertEasy1 markMultiple Choice
AWS SAA-C03 · Question 39 · Domain 3.1: Storage Performance
A database running on an Amazon EC2 instance requires a block storage volume that can provide 15,000 IOPS. The workload is consistent, and cost is a consideration, but performance must be guaranteed. Which Amazon EBS volume type is the MOST cost-effective choice that meets the performance requirement?
A database running on an Amazon EC2 instance requires a block storage volume that can provide 15,000 IOPS. The workload is consistent, and cost is a consideration, but performance must be guaranteed. Which Amazon EBS volume type is the MOST cost-effective choice that meets the performance requirement?
Answer options:
A.
General Purpose SSD (gp2)
B.
General Purpose SSD (gp3)
C.
Provisioned IOPS SSD (io2)
D.
Throughput Optimized HDD (st1)
How to approach this question
Check the IOPS requirement (15,000). gp3 supports up to 16,000 IOPS independently of size. io2 is for >16,000 IOPS or extreme durability.
Full Answer
B.General Purpose SSD (gp3)✓ Correct
General Purpose SSD (gp3)
Amazon EBS gp3 volumes are the latest generation of general-purpose SSD volumes. They allow you to provision IOPS and throughput independently of storage capacity. gp3 supports up to 16,000 IOPS, making it the most cost-effective choice for a 15,000 IOPS requirement compared to the more expensive io2.
Common mistakes
Choosing io2 automatically when seeing 'Provisioned IOPS', forgetting that gp3 can handle up to 16,000 IOPS.
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