TheoryAWS Developer Associate Prep 2 Practice Test Video
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Q1A developer needs to identify performance bottlenecks in a distributed application deployed across multiple AWS services. Which AWS service should be used?
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✓ Correct answer: AWS X-Ray
AWS X-Ray provides distributed tracing functionality that helps developers analyze and debug distributed applications. It offers end-to-end visibility of requests as they travel through the application, making it ideal for identifying performance bottlenecks in distributed systems.
Q2Which CloudWatch Logs feature should a developer use to extract specific data fields from logs and create metrics from them?
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✓ Correct answer: Metric Filters
CloudWatch Logs Metric Filters allow developers to define patterns to extract values from logs and convert them into CloudWatch metrics, which can then be used for monitoring, alerting, and visualization.
Q3A Lambda function is sometimes timing out during execution. How can a developer identify the root cause of these timeouts?
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✓ Correct answer: Add detailed logging with timestamps throughout the function code
Adding detailed logging with timestamps helps track execution progress and identify which operations are taking longer than expected, helping to pinpoint the cause of Lambda timeouts.
Q4Which tool should a developer use to analyze and debug latency issues in an application that spans multiple AWS services?
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✓ Correct answer: AWS X-Ray
AWS X-Ray provides tracing capabilities that help developers analyze and debug latency issues in distributed applications by visualizing the full request path across multiple services.
Q5A developer wants to monitor custom application metrics in real-time. Which approach is most appropriate?
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✓ Correct answer: Use the CloudWatch PutMetricData API to send custom metrics
Using the CloudWatch PutMetricData API allows developers to send custom metrics directly to CloudWatch, enabling real-time monitoring of application-specific data points.
Q6Which query language is used in CloudWatch Logs Insights to analyze log data?
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✓ Correct answer: CloudWatch Logs Insights query language
CloudWatch Logs Insights uses its own purpose-built query language designed specifically for querying and analyzing log data stored in CloudWatch Logs.
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