To process events from AWS services, AWS Lambda requires appropriate _________ to access the event source.
- API Gateway
- IAM permissions
- Lambda function name
- VPC configurations
AWS Lambda requires appropriate IAM permissions to access event sources from various AWS services securely.
Event sources for AWS Lambda can be configured to deliver events asynchronously using _________.
- AWS CLI
- AWS Lambda console
- AWS SDKs
- Event source mapping
Event source mapping allows for asynchronous delivery of events to Lambda from services like DynamoDB Streams or Kinesis Data Streams.
AWS Lambda integrates with Amazon __________ to process events in real-time.
- EventBridge
- RDS
- S3
- SQS
AWS Lambda integrates with Amazon EventBridge to process events in real-time, enabling event-driven architectures.
Custom event sources for AWS Lambda often require the implementation of AWS Lambda __________.
- Extensions
- Layers
- Policies
- Roles
AWS Lambda extensions can help in integrating custom event sources by extending the functionality of Lambda and providing event processing capabilities.
AWS Lambda can be configured to consume events from third-party services using __________ integrations.
- FTP
- REST API
- SMTP
- Webhook
AWS Lambda can consume events from third-party services using webhook integrations, enabling seamless integration with various platforms and services.
Scenario: You are building a serverless application where data updates in an Amazon S3 bucket should trigger AWS Lambda functions for further processing. Which AWS service would you use to achieve this?
- Amazon EC2 Instances
- Amazon RDS Databases
- Amazon Redshift
- Amazon S3 Event Notifications
Amazon S3 can trigger AWS Lambda functions using event notifications, allowing you to process data updates in the bucket.
Scenario: Your team needs to design a solution where incoming messages from an Amazon SQS queue should trigger AWS Lambda functions to process the data. Which AWS service would you use to accomplish this integration?
- Amazon EC2 Autoscaling
- Amazon RDS Instances
- Amazon S3 Buckets
- Amazon SQS Triggers
Amazon SQS can directly trigger AWS Lambda functions, allowing you to process incoming messages from the queue efficiently.
Scenario: You are tasked with setting up an architecture where changes to items in an Amazon DynamoDB table should trigger AWS Lambda functions to update corresponding records in an Amazon RDS database. What steps would you take to implement this solution?
- Use Amazon EC2 Instances
- Use Amazon S3 Event Notifications
- Use DynamoDB Streams
- Use DynamoDB Triggers
DynamoDB Streams can capture changes to items in a table and trigger AWS Lambda functions, allowing you to update corresponding records in RDS.
How do Lambda limits and quotas affect the scalability of serverless applications?
- They can impact the ability to handle sudden spikes in traffic
- They have no effect on scalability
- They improve scalability by optimizing resource utilization
- They only affect cost, not scalability
Lambda limits and quotas, such as concurrent executions, can impact the ability of serverless applications to handle sudden spikes in traffic, potentially leading to throttling or failed invocations during peak loads.
Can AWS Lambda functions be triggered by events from AWS Step Functions?
- AWS Step Functions can only invoke AWS Lambda functions synchronously
- AWS Step Functions can only trigger AWS Lambda functions via HTTP requests
- No, AWS Lambda functions cannot be triggered by events from AWS Step Functions
- Yes, AWS Step Functions can trigger Lambda functions
AWS Step Functions can indeed trigger Lambda functions, allowing you to orchestrate workflows that involve multiple Lambda functions.