Troubleshooting and Optimization Questions
Practice questions for Troubleshooting and Optimization topic in AWS Certified Developer - Associate. 36 questions covering this domain.
A content platform needs to cache different versions of the same object based on viewer request headers such as language or device type. Which AWS ser...
An API operations team wants stage-level API metrics such as calls, latency, integration latency, 400 errors, and 500 errors, along with execution log...
A developer wants to follow a request end-to-end across distributed services to understand dependencies and latency. Which AWS service is purpose-buil...
An engineer needs to search application logs quickly to find the entries related to a production incident. Which AWS service is the best place to quer...
A commerce application repeatedly reads the same hot product data and is putting unnecessary pressure on its primary database. Which AWS optimization ...
A critical Lambda function is being throttled because other functions in the account are consuming available concurrency. What should the team configu...
In AWS Lambda, what does concurrency mean?
A Lambda function averages 200 milliseconds per request and receives 5,000 requests per second during peak load. Based on AWS guidance, what concurren...
A team wants a single AWS observability service to work with application metrics, logs, traces, dashboards, and alarms. Which service should they use?
A high-traffic Lambda function intermittently times out during database queries while average duration is well below the configured timeout. The team ...
Which CloudWatch Logs feature lets developers run interactive ad-hoc queries against log data using a purpose-built query language?
A developer sees DynamoDB occasional 4xx errors with 'ConditionalCheckFailedException'. What does this mean?
An API Gateway REST API must reduce the number of backend calls for repeated identical GET requests at the same stage. Which feature should be enabled...
A developer wants to reduce S3 GET request latency for a global audience without changing application code. Which AWS option fits BEST?
An EC2-based application throws AccessDenied when calling AWS APIs after working correctly for months. The instance profile role has not changed. Whic...
A DynamoDB table experiences ProvisionedThroughputExceededException during occasional spikes. Which solution should the developer choose to absorb spi...
Which AWS X-Ray entity represents work performed by your service for a request, including subsegments for downstream calls?
A developer's Lambda function is hitting Init Duration cold-start latency on every cold start. Which feature reduces cold-start latency for predictabl...
Which AWS X-Ray entity represents the entire journey of a single request as it travels through all services in a distributed application?
A developer wants to create a CloudWatch alarm that triggers an SNS notification when the average Lambda Duration metric exceeds 3000 ms for 3 consecu...
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