> For the complete documentation index, see [llms.txt](https://bryan-guner.gitbook.io/my-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bryan-guner.gitbook.io/my-docs/web-dev-quizzes/aws-lambda-quiz.md).

# aws-lambda-quiz

**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?**

* `blocks`
* \[✅] `layers`
* `aliases`
* `handlers`

**Q3. How can Step Functions call Lambdas?**

* `in sequence`
* \[✅] `both of these answers`
* `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`
* `aws lambda execute --function ReturnBucketName outputfile.txt`

**Q5. What adds tracing capabilities to a Lambda?**

* `AWS Trace`
* `CloudStack`
* `CloudTrail`
* \[✅] `AWS X-Ray`

**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?**

* `API Gateway`
* `S3`
* `SAS`
* \[✅] `CLoudTrail`

**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`
* `a bitmask`
* \[✅] `an AWS KMS key`
* `an HTTP protocol`

**Q10. Lambdas allow for running of what other things?**

* `binaries.`
* \[✅] `all of these answers`
* `executables`
* `Shell scripts`

**Q11. In what style must you write Lambda code?**

* `MVC`
* `virtual`
* \[✅] `stateless`
* `protocol`

**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?**

* `CLoudWatch logs`
* `DynamoDB logs`
* `S3 logs`
* \[✅] `Lambda logs.`

**Q14. What facilitates continuous delivery of Lambdas?**

* `CodeStack`
* `ElasticStack`
* `Mobile Hub`
* \[✅] `CodeDeploy`

**Q15. How are computing resources allocated to Lambdas?**

* \[✅] `proportionally`
* `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`
* \[✅] `both of these answers`

**Q23. How are CloudWatch actions configured?**

* `automatically`
* `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?**

* \[✅] `/tmp`
* `/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.`
* `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?**

* `DynamoDB tables`
* \[✅] `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?**

* `S3`
* \[✅] `API Gateway`
* `X-Ray`
* `DynamoDB`

**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?**

* `Fleece`
* \[✅] `NPM`
* `none of these answers`
* `Pod`

**Q37. Lambdas are monitored by default using which service?**

* `CloudTrail`
* \[✅] `CloudWatch`
* `CloudFormation`
* `LogWatch`

**Q38. What can trigger a Lambda function execution?**

* `a table definition`
* `queue isolation`
* `STS Write`
* \[✅] `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?**

* `POST`
* `"All object create events"`
* \[✅] `PUT`
* `COPY`

**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?**

* `YAML definition`
* `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`
* `never`
* \[✅] `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.