SOA-C02 · Question #637
A company has a legacy non-production application that can scale only vertically. The application is deployed on a single t3.large (general purpose) Amazon EC2 instance. The EC2 instance is showing…
The correct answer is B. Change the instance to a nonburstable instance class. T3 instances are burstable and may run out of network burst credits during sustained high network utilization, causing performance degradation. Switching to a nonburstable instance class (for example, an M5 instance) provides consistent network performance without the risk of…
Question
A company has a legacy non-production application that can scale only vertically. The application is deployed on a single t3.large (general purpose) Amazon EC2 instance. The EC2 instance is showing 95% network utilization that causes significant performance latency after a few minutes. What should a SysOps administrator do to resolve this performance problem?
Options
- AEnable unlimited mode on the current instance.
- BChange the instance to a nonburstable instance class.
- CUse a Provisioned IOPS SSD (io2) Amazon Elastic Block Store (Amazon EBS) volume.
- DAdd more t3.large instances to the application.
How the community answered
(48 responses)- A2% (1)
- B79% (38)
- C13% (6)
- D6% (3)
Explanation
T3 instances are burstable and may run out of network burst credits during sustained high network utilization, causing performance degradation. Switching to a nonburstable instance class (for example, an M5 instance) provides consistent network performance without the risk of running out of burst credits, thereby resolving the performance issue.
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