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aws-lambda-quiz.md

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AWS LAMBDA Assessment

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 <<<<<<--------------- CORRECT
  • Increase the configured concurrency value

Q2. How can additional code or content can be provided for Lambda?

  • blocks
  • layers <<<<<<--------------- CORRECT
  • aliases
  • handlers

Q3. How can Step Functions call Lambdas?

  • in sequence
  • both of these answers <<<<<<------------- CORRECT
  • neither of these answers
  • in parallel

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 <<<<<<<<------ CORRECT
  • aws lambda execute --function ReturnBucketName outputfile.txt

Q5. What adds tracing capabilities to a Lambda?

  • AWS Trace
  • CloudStack
  • CloudTrail
  • AWS X-Ray <<<<<<----- CORRECT

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. <<<<<<<<------ CORRECT

Q7. What can you use to monitor function invocations?

  • API Gateway
  • S3
  • SAS
  • CLoudTrail <<<<<<--------------- CORRECT

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. <<<<<<--------------- CORRECT

Q9. What may be provided for environment variables?

  • an SSL certificate
  • a bitmask
  • an AWS KMS key <<<<<<---------- CORRECT
  • an HTTP protocol

Q10. Lambda allows for running of what other things?

  • binaries.
  • all of these answers <<<<<-------------- CORRECT
  • executables
  • Shell scripts

Q11. In what style must you write Lambda code?

  • MVC
  • virtual
  • stateless <<<<<<----------- CORRECT
  • protocol

Q12. How can a developer provide Lambda code?

  • by uploading a .zip file
  • all of these answers <<<<<<----------- CORRECT
  • 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 exectuon overhead?

  • CLoudWatch logs
  • DynamoDB logs
  • S3 logs
  • Lambda logs. <<<<<<<<------ CORRECT

Q14. What facilitates continuous delivery of Lambdas?

  • CodeStack
  • ElasticStack
  • Mobile Hub
  • CodeDeploy <<<<<<<<------ CORRECT

Q15. How are computing resources allocated to Lambdas?

  • proportionally <<<<<------- CORRECT
  • equally
  • periodically
  • daily

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
  • logging events
  • 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?

  • department:Sales,department:Sales
  • department:Sales,department:sales
  • aws:demo;aws:demo
  • aws:demo;aws:DEMO

Q22. Outbound connections from Lambdas must be ______.

  • neither of these answers
  • UDP/IP
  • TCP/IP <<<<<------- CORRECT
  • both of these answers

Q23. How are CloudWatch actions configured?

  • automatically
  • none of these answers
  • manually <<<<<------- CORRECT
  • 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 <<<<<------- CORRECT
  • 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. <<<<<------- CORRECT

Q26. How is the cost associated with Lambda function calculated?

  • number of function calls
  • amount of code run
  • compute time <<<<<------- CORRECT
  • amount of infrastructure used

Q27. What is the fastest way to get started with Lambda?

  • Author a Lambda from scratch.
  • Use a blueprint. <<<<<------- CORRECT
  • Use a .zip deployment package.
  • Use the serverless app repository.

Q28. Where is the disk space allocated for Lambda functions?

  • /tmp <<<<<------- CORRECT
  • /default
  • /temp
  • /ds

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. <<<<<------- CORRECT
  • Reset the function.
  • Set the function concurrent execution limit to 100 while you update the code.