What are the steps involved in configuring API Gateway to trigger AWS Lambda functions?
- Create a new API in API Gateway, define resources and methods, and configure integration settings to invoke Lambda functions
- Install additional SDKs
- Modify VPC settings
- Update Lambda function IAM roles
Configuring API Gateway to trigger Lambda functions involves creating a new API, defining resources and methods, and configuring integration settings to specify which Lambda function to invoke for each method.
How does API Gateway handle error responses from AWS Lambda functions?
- API Gateway forwards Lambda function errors to CloudWatch Logs
- API Gateway maps Lambda function error responses to HTTP error status codes
- API Gateway returns generic error messages for all Lambda function errors
- API Gateway terminates requests upon encountering a Lambda function error
API Gateway handles error responses from Lambda functions by mapping Lambda function error responses to appropriate HTTP error status codes, providing meaningful error messages to clients.
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.