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Q1. How can you increase the CPU resources for your Lambda?
Increase the configured CPU value
Increase the configured timeout value
Increase the configured memory value✔️ Increase the configured concurrency value
Q2. How can additional code or content be provided for your Lambda?
Q3. How can Step Functions call Lambdas?
both of these answers✔️ neither of these answers
Q4. Which AWS CLI command invokes a function?
aws lambda invoke –function ReturnBucketName outputfile.txt
aws lambda execute –function-name ReturnBucketName outputfile.txt
aws lambda invoke –function-name ReturnBucketName outputfile.txt✔️ aws lambda execute –function ReturnBucketName outputfile.txt
Q5. What adds tracing capabilities to a Lambda?
Q6. You need to build a continuous integration/deployment pipeline for a set of Lambdas. What should you do?
Create configuration files and deploy them using AWS CodePipeline.
Create CloudFormation templates and deploy them using AWS CodeBuild
Create configuration file and deploy using AWS CodeBuild
Create CloudFormation templates and deploy them using AWS CodePipeline.✔️
Q7. What can you use to monitor function invocations?
Q8. It is AWS best practice to enable Lambda logging by which of these methods.
Use S3 metrics and CloudWatch alarms
Create custom metrics within your Lambda code.
Create custom metrics within your CloudWatch code.
Use Lambda metrics and CloudWatch alarms.✔️
Q9. What may be provided for environment variables?
an SSL certificate
an AWS KMS key✔️ an HTTP protocol
Q10. Lambdas allow for running of what other things?
all of these answers✔️ executables
Q11. In what style must you write Lambda code?
Q12. How can a developer provide Lambda code?
by uploading a .zip file
all of these answers✔️ by editing inline
from an S3 bucket
Q13. You are performance-testing your Lambda to verify that you set the memory size adequately. Where do you verify the execution overhead?
Q14. What facilitates continuous delivery of Lambdas?
Q15. How are computing resources allocated to Lambdas?
Q16. You can restrict the scope of a user’s permissions by specifying which two items in an IAM policy?
resources and users
resources and conditions✔️ events and users
events and conditions
Q17. What does Lambda logging include?
logging streams✔️ rotating streams
advancing log groups
Q18. What can AWS Amplify NOT do for a Lambda?
create a Lambda
be an event source✔️ assign an IAM role
delete a Lambda
Q19. How do you author a Lambda in a programming language that AWS does not support?
Create a Lambda function with a custom runtime and reference the function in your Lambda
Create a Lambda layer with a custom runtime and reference the layer in your lambda✔️ You cannot use Lambda in this situation
Create a Lambda function with a custom runtime
Q20. What are listed downstream resources based on?
the execution policy
the Lambda configuration✔️ the Lambda nodes
the IAM user
Q21. Which is an equivalent and valid tag for a pair of Lambdas?
Q22. Outbound connections from Lambdas must be ___
neither of these answers
both of these answers✔️
Q23. How are CloudWatch actions configured?
none of these answers
manually✔️ ad hoc
Q24. You are testing your stream-based application and the associated Lambda. AWS best practice advises you to test by varying what?
stream and record sizes
stream and shard sizes
batch and record sizes✔️ batch and shard sizes
Q25. You need to make your Lambda available to services in multiple VPCs. What do you do?
Place each subnet in a VPC. Associate all subnets to your Lambda.
Place all subnets in a VPC. Associate all subnets to your Lambda.
Configure your Lambda to be available to multiple VPCs.
Configure all application VPCs to be peered.✔️
Q26. How is the cost associated with Lambda function calculated?
number of function calls
amount of code run
compute time✔️ amount of infrastructure used
Q27. What is the fastest way to get started with Lambda?
Author a Lambda from scratch.
Use a blueprint.✔️ Use a .zip deployment package.
Use the serverless app repository.
Q28. Where is the disk space allocated for Lambda functions?
Q29. How do you stop a running Lambda that is stuck in a recursive loop?
Delete the function.
Set the function concurrent execution limit to 0 while you update the code.✔️ Reset the function.
Set the function concurrent execution limit to 100 while you update the code.
Q30. What is AWS best practice for Lambda configuration?
Overprovision memory to run your functions faster and reduce your costs. Do not overprovision your function timeout settings.✔️ Overprovision memory and your function timeout settings to run your functions faster and reduce your costs.
Do not overprovision memory. Overprovision your function timeout settings to run your functions faster and reduce costs.
Do not overprovision memory. Do not overprovision your function timeout settings to run your functions faster and reduce costs.
Q31. Basic Lambda permissions include permissions for what?
removing log groups
none of these answers
creating log groups
updating log groups✔️
Q32. How are environment variables stored?
key-value pairs✔️ S3 buckets
none of these answers
Q33. You need to use a Lambda to provide backend logic to your website. Which service do you use to make your Lambda available to your website?
API Gateway✔️ X-Ray
Q34. You are creating a Lambda to trigger on change to files in an S3 bucket. Where should you put the bucket name?
in the Lambda function code
in a Lambda environment variable✔️ in the Lambda tags
in another S3 bucket
Q35. What action is needed before you can test a Lambda?
Deploy the Lambda
Export the function
none of these answers
Configure a test event✔️
Q36. What kind of packages can you use with Node.js for Lambdas?
NPM✔️ none of these answers
Q37. Lambdas are monitored by default using which service?
Q38. What can trigger a Lambda function execution?
a table definition
an SNS topic✔️
Q39. You need to set an S3 event trigger on your Lambda to respond when data is added to your bucket from another S3 bucket. Which event type do you configure?
“All object create events”
Q40. To make Lambdas more testable, it is AWS best practice to separate which of these?
Lambda configuration from logging code
Lambda handler from logging code
Lambda handler from core logic✔️ Lambda configuration from core logic
Q41. What is included in an exported Lambda deployment package?
CloudFormation stack configuration
SAML deployment stack
Zip file of all related files✔️
Q42. When can you change the execution role of a Lambda?
only at creation
only before deployment
anytime via configuration✔️
Q43. What is the relationship between SAM template and CloudFormation template files?
SAM templates are a superset of CloudFormation templates. SAM templates include additional resource types.
SAM templates have some overlap with CloudFormation templates. Both SAM and CloudFormation templates include resource types that are not in the other type of template.
CloudFormation templates are a superset of SAM templates. CloudFormation templates include additional resource types.✔️ SAM templates are a different name for CloudFormation templates. Both template types include the same resource types.
Q44. What service deploys Lambdas regionally?
Q45. What programming language does AWS Lambda support?
all of these answers✔️
Q46. You need to setup a mechanism to put controls in place to notify you when you have a spike in Lambda concurrency. What should you do?
Deploy a CloudTrail alarm that notifies you when function metrics exceed your threshold. Create an AWS budget to monitor costs.
Deploy a CloudWatch alarm that notifies you when function metrics exceed your threshold. Create an AWS budget to monitor costs.✔️ Deploy a CloudWatch alarm that notifies you when function metrics exceed your threshold. Create an AWS CostMonitor to monitor costs.
Deploy a CloudTrail alarm that notifies you when function metrics exceed your threshold. Create an AWS CostMonitor to monitor costs.
Q47. You want to minimize cold start time for your Lambda. What do you do?
Add extra code to check if the transient cache, or the /tmp directory, has the data that you stored.
Add extra code to check if the permanent cache, or the /cache directory, has the data that you stored.
Do nothing. AWS minimizes cols start time by default.
Create a warm-up Lambda that calls your Lambda every minute✔️
Q48. When is Lambda code stored encrypted?
at rest✔️ at runtime
non of these answers
Q49. When you use a resource-based policy to give a service, resource, or account access to your function, how can you apply the scope of that permission?
at the function level✔️ at the alias or function level
at the version, alias, or function level
at the version or function level
Q50. Lambda can read events from which other AWS services? (ref-https://docs.aws.amazon.com/lambda/latest/dg/lambda-services.html)
Kinesis, S3, and SQS
Kinesis, S3, and SNS
Kinesis, DynamoDB, and SNS
Kinesis, DynamoDB, and SQS✔️
Q51. Via what can a Lambda be called?
an S3 bucket event
a DynamoDB trigger
an API Gateway
all of these answers✔️
Q52. which is use case of lambda ?
both✔️ Neither 1st and 2nd
Q53. Events are AWS resources that trigger the Lambda function. What data type is the SAM file Events property?
Q54. A company is using an API built using Amazon Lambda, Amazon API Gateway, and Amazon DynamoDB in production. The developer has observed high latency during peak periods. Which approach would best resolve the issue?
Increase the Lambda function timeout
Route traffic to API Gateway using a Route 53 alias
Disable payload compression for the API
Enable API Gateway stage-level caching✔️
Q55. The AWS Serverless Application Model (AWS SAM) is a model that ___ .
defines serverless applications✔️ associates permissions policies
creates Lambda functions
packages deployment artifacts
Q56. The code that you want AWS Lambda to invoke as per some defined triggers is known as ___.
the event source
the downstream resource
the log stream
the Lambda function✔️
Q57. A developer has created a Lambda function to scrub real-time data of extraneous information and then send the scrubbed data to Kinesis for further processing and storage. Some of the data showing up in Kinesis seems to be inaccurate. What’s the best way for the developer to debug this?
Look directly at the Lambda Logs in CloudWatch
Send the Lambda failures to a Dead Letter Queue
Use AWS X-Ray to step through the function✔️ Use Kinesis to write their own custom logging tool