AWS Certified Solutions Architect – Professional SAP-C01 – Question150

A user has configured EBS volume with PIOPS. The user is not experiencing the optimal throughput.
Which of the following could not be factor affecting I/O performance of that EBS volume?

A. EBS bandwidth of dedicated instance exceeding the PIOPS
B. EBS volume size
C. EC2 bandwidth
D. Instance type is not EBS optimized

Correct Answer: B

Explanation:

Explanation: If the user is not experiencing the expected IOPS or throughput that is provisioned, ensure that the EC2 bandwidth is not the limiting factor, the instance is EBS-optimized (or include 10 Gigabit network connectivity) and the instance type EBS dedicated bandwidth exceeds the IOPS more than he has provisioned.
Reference:
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-io-character…