Cost-effective Instance Types for Burstable Workloads | SOA-C02 Exam Answer

Cost-effective Instance Types for Burstable Workloads

Question

A company wants to deploy a set of Instances.

The workloads on these instances remain fairly constant in CPU utilization with brief intervals of burstable performance.

Which of the following would be the most Cost-effective instance types to be used for the Instances? Select 2 correct answers from the following options.

Answers

Explanations

Click on the arrows to vote for the correct answer

A. B. C. D.

Correct Answers: A and D.

The AWS Documentation mentions the following.

Burstable performance instances, which include T3 and T2 instances, are designed to provide a baseline level of CPU performance with the ability to burst to a higher level when required by your workload.

Burstable performance instances are well suited for a wide range of general-purpose applications.

Examples include microservices, low-latency interactive applications, small and medium databases, virtual desktops, development, build, and stage environments, code repositories, and product prototypes.

Because this is clearly mentioned in the AWS documentation, all other options are invalid.

For more information on burstable performance instances, please visit the below URL-

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/burstable-performance-instances.html

The most cost-effective instance types for a workload that remains fairly constant in CPU utilization with brief intervals of burstable performance are the T2 and T3 instance types. These instance types are designed to provide a baseline level of CPU performance with the ability to burst above that baseline for short periods of time.

The T2 and T3 instance types use a CPU credit system to determine the baseline level of performance and the amount of burstable performance available. Each instance earns CPU credits continuously over time, and the amount of credits earned per hour depends on the size of the instance. The instance uses these credits to determine the baseline level of CPU performance, and any additional credits can be used to burst above that baseline for short periods of time.

The M4 and C4 instance types are designed for workloads that require consistent high CPU performance, rather than burstable performance. These instance types do not use a CPU credit system and instead provide a consistent level of CPU performance that is based on the size of the instance.

In summary, the T2 and T3 instance types are the most cost-effective options for workloads that remain fairly constant in CPU utilization with brief intervals of burstable performance. The M4 and C4 instance types are designed for workloads that require consistent high CPU performance.