AWS Lambda Application Development Quiz

1. Which pricing model applies to Lambda?

Pay per instance hour

Pay per GB-second of compute

Fixed monthly subscription

Pay per API call only

2. What is the primary benefit of using Lambda@Edge?

Increased function memory

Execute code at CloudFront edge locations

Reduced database latency

Automatic function versioning

3. How can you implement conditional logic in Lambda deployments using SAM?

Using Conditions in template

Using If statements in handler code

Using CloudFormation parameters only

Using EventBridge rules

4. What does the Lambda reserved concurrency setting control?

Maximum connections to database

Maximum simultaneous executions for a function

Number of retries for failed invocations

Timeout duration for function execution

5. Which event source integration supports asynchronous Lambda invocation?

ALB

S3

API Gateway

Kinesis

6. What is the purpose of the Lambda context object?

Stores function configuration data

Provides runtime information and methods

Manages IAM permissions

Schedules function invocations

7. How do you pass sensitive data to Lambda functions securely?

Store in environment variables only

Hardcode in function code

Use AWS Secrets Manager or Parameter Store

Pass as plain text in events

8. Which statement best describes Lambda cold starts?

Delays when a new container initializes

Errors that occur during function execution

Scheduled termination of idle functions

Automatic rollback of failed deployments

9. What is the maximum deployment package size for Lambda?

50 MB

100 MB

250 MB

500 MB

10. How can you trace Lambda function execution across AWS services?

CloudWatch dashboards

AWS X-Ray

VPC Flow Logs

CloudTrail only

11. What is the maximum execution duration for an AWS Lambda function?

5 minutes

15 minutes

30 minutes

60 minutes

12. What does Lambda Dead Letter Queue (DLQ) do?

Stores failed function logs

Captures events that Lambda cannot process

Schedules retries automatically

Monitors function performance

13. Which AWS service provides centralized logging for Lambda functions?

CloudTrail

CloudWatch Logs

X-Ray

EventBridge

14. What is the primary purpose of a Lambda layer?

To manage versioning

To share code and libraries across functions

To enable VPC access

To configure environment variables

15. How does Lambda scale automatically in response to incoming requests?

Manual scaling only

Concurrent executions are automatically provisioned

Pre-warming is required

Scaling occurs only after CloudWatch alarms trigger

16. Which environment variable is automatically set by Lambda runtime?

AWS_LAMBDA_FUNCTION_NAME

LAMBDA_RUNTIME_VERSION

AWS_EXECUTION_ENV

FUNCTION_REGION

17. What is the default memory allocation for a new Lambda function?

64 MB

128 MB

256 MB

512 MB

18. Which service can trigger a Lambda function synchronously?

SQS

SNS

API Gateway

EventBridge

19. What IAM resource policy allows an S3 bucket to invoke a Lambda function?

S3 bucket policy

Lambda execution role

Lambda resource-based policy

IAM inline policy

20. Which of the following is NOT a supported Lambda runtime?

Python 3.11

Node.js 18.x

Java 21

Go 1.5

AWS Developer Lambda Application Development Quiz