Scenario: Your application requires secure authentication for API requests before they reach AWS Lambda. How would you configure API Gateway to handle authentication and authorization?
- Use API Gateway API keys
- Use API Gateway custom authorizers
- Use API Gateway usage plans
- Use AWS IAM roles
By using API Gateway custom authorizers, you can configure secure authentication and authorization for API requests before they reach AWS Lambda, ensuring controlled access to API endpoints.
Can you configure AWS Lambda to process S3 events across multiple AWS regions?
- No, AWS Lambda can only process S3 events within the same region
- No, AWS Lambda does not support processing S3 events across multiple regions
- Yes, by configuring Lambda aliases
- Yes, by configuring event source mappings
AWS Lambda supports configuring event source mappings to process S3 events across multiple AWS regions, enabling cross-region event processing.
Scenario: Your team is aiming to optimize API performance and reduce costs. How would you leverage API Gateway features to implement caching and rate limiting for AWS Lambda-backed APIs?
- Use API Gateway caching to cache responses
- Use API Gateway request throttling
- Use API Gateway usage plans for rate limiting
- Use AWS Lambda concurrency limits
By leveraging API Gateway caching to cache responses and API Gateway request throttling to limit request rates, you can optimize API performance and reduce costs for Lambda-backed APIs.
How can you configure AWS Lambda to filter S3 events based on object prefixes?
- Bucket filtering
- Content filtering
- Prefix filtering
- Suffix filtering
AWS Lambda allows you to configure prefix filtering on S3 event notifications, enabling you to specify object prefixes for filtering events.
What are some considerations for handling large numbers of S3 event notifications in AWS Lambda?
- Concurrent executions
- Disk space
- Memory allocation
- Network bandwidth
Considerations for handling large numbers of S3 event notifications in AWS Lambda include managing concurrent executions and scaling strategies.
S3 events can trigger AWS Lambda functions in response to changes in __________.
- Amazon EC2 instances
- Amazon RDS databases
- Amazon S3 buckets
- Amazon SQS queues
S3 events can trigger AWS Lambda functions in response to changes in Amazon S3 buckets, such as object creation, deletion, or modification.
AWS Lambda functions invoked by S3 events receive information about the event, including the __________ that triggered the function.
- Bucket name
- Event timestamp
- Event type
- Object key
AWS Lambda functions invoked by S3 events receive information about the event, including the object key that triggered the function, allowing you to process the relevant object.
To filter S3 events based on object prefixes, you can specify a __________ in the event configuration.
- Metadata filter
- Prefix filter
- Size filter
- Suffix filter
To filter S3 events based on object prefixes, you can specify a prefix filter in the event configuration, allowing you to narrow down which objects trigger the Lambda function.
AWS Lambda can process S3 events in __________ mode, allowing you to handle high volumes of events.
- Batch
- Real-time
- Sequential
- Stream
AWS Lambda can process S3 events in batch mode, allowing it to handle high volumes of events efficiently by batching multiple events together for processing.
__________ is a feature of S3 events that enables you to customize the event notification content sent to AWS Lambda.
- Event filtering
- Event logging
- Event routing
- Event transformation
Event transformation is a feature of S3 event notifications that enables you to modify the content of the event before it's sent to AWS Lambda.