AWS Certified Cloud Practitioner
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Which AWS compute service automatically scales resources up or down to meet application workload demands?
Real Exam
Community
RRitesh
A
Amazon Simple Queue Service (Amazon SQS)
B
Amazon EC2
C
Amazon Aurora
D
AWS Lambda
Explanation:
Explanation
AWS Lambda is the correct answer because:
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Serverless Architecture: AWS Lambda is a serverless compute service that automatically scales resources up or down based on the number of incoming requests or events
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Automatic Scaling: Lambda functions automatically scale from zero to thousands of parallel executions without any manual intervention
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No Operational Overhead: Unlike Amazon EC2 which requires manual configuration of Auto Scaling Groups, Lambda handles scaling automatically
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Event-Driven: Lambda scales in response to triggers from various AWS services like API Gateway, S3, DynamoDB, etc.
Why other options are incorrect:
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Amazon SQS: This is a message queuing service, not a compute service
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Amazon EC2: While EC2 can be made scalable using Auto Scaling Groups, it requires manual configuration and doesn't automatically scale by default
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Amazon Aurora: This is a managed relational database service, not a compute service
Lambda's automatic scaling makes it ideal for applications with variable or unpredictable workloads.
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