← AWS Certified Developer - Associate
AWS · objective · 18% of the exam
Troubleshooting and Optimization
Exam objectives are the official skill domains AWS Certified Developer - Associate tests. Below are the official AWS docs our questions on this objective cite — review them, then practise.
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Official references for this objective
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Amazon Web Services — Cost optimization - AWS Support
if there are Amazon EC2 instances that have been stopped for more than 30 days. You can specify the allowed number of days value in
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Amazon Web Services — Best practices for Amazon RDS - Amazon Relational Database Service
Continue to scale up until ReadIOPS no longer drops dramatically after a scaling operation, or ReadIOPS is reduced to a very small amount.
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Amazon Web Services — Tips for Right Sizing - Right Sizing: Provisioning Instances to Match Workloads
Maximum NetworkIn (or NetworkOut) x 8 (bytes to bits) /1024/1024/ 60 = Number of Mbps
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Amazon Web Services — Using Amazon CloudWatch alarms - Amazon CloudWatch
Using composite alarms can reduce alarm noise. You can create multiple metric alarms, and also create a composite alarm and set up alerts only for
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Amazon Web Services — Viewing EC2 Auto Scaling group recommendations - AWS Compute Optimizer
High — The recommended instance type has different CPU architecture from the current instance type, and the workload has no known compatible version on the
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Amazon Web Services — AWS X-Ray - AWS Prescriptive Guidance
The X-Ray service map is a visual tool that helps you identify where errors are occurring, connections with high latency, or traces for unsuccessful requests.