AWS Lambda LinkedIn assessment answers 2023

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AWS Lambda LinkedIn assessment answers
AWS Lambda LinkedIn assessment answers

100% Free Updated AWS Lambda LinkedIn assessment Certification Exam Questions & Answers.

AWS Lambda LinkedIn assessment Details:

  • 15 – 20 multiple-choice questions
  • 1.5 minutes per question
  • Score in the top 30% to earn a badge

Before you start:

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AWS Lambda LinkedIn assessment answers

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.

Q44. What service deploys Lambdas regionally?

  •  EdgeCloud
  •  CloudEdge
  •  CloudFront
  •  CloudStack

Q45. What programming language does AWS Lambda support?

  •  custom
  •  all of these answers
  •  Java
  •  Ruby

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

[Reference](https://aws.amazon.com/blogs/compute/new-for-aws-lambda-predictable-start-up-times-with-provisioned-concurrency/

Q48. When is Lambda code stored encrypted?

  •  at rest
  •  at runtime
  •  at deployment
  •  non of these answers

Reference

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

Explanation Lambda can used for all services mentioned on the question: Kinesis, S3, SNS, SQS, DynamoDB. But as you can see in the reference, Lambda's responsibility and method invocation can be categorized by Lambda polling and Event Driven (synchronous invocation). When you implement an event-driven architecture, you grant the event-generating service permission to invoke your function in the function's resource-based policy. Then you configure that service to generate events that invoke your function. When you implement a Lambda polling architecture, you grant Lambda permission to access the other service in the function's execution role. Lambda reads data from the other service, creates an event, and invokes your function. According to this analytics, Kinesis-DynamoDB-SQS use same method invocation, Lambda polling.

Q51. Via what can a Lambda be called?

  •  all of these answers
  •  a DynamoDB trigger
  •  an API Gateway
  •  an S3 bucket event

Explanation (source google)

  • With DynamoDB Streams, you can trigger a Lambda function to perform additional work each time a DynamoDB table is updated. Lambda reads records from the stream and invokes your function synchronously with an event that contains stream records.
  • These events are considered synchronous events. Simply put, it means that when somebody is calling an API Gateway, it will trigger your Lambda function. It's a synchronous event because your Lambda function has to respond to the client directly at the end of its invocation.
  • You can use Lambda to process event notifications from Amazon Simple Storage Service. Amazon S3 can send an event to a Lambda function when an object is created or deleted.

52. which is use case of lambda ?

  •  Image processing
  •  web application
  •  both
  •  Neither 1st and 2nd

Q53. Events are AWS resources that trigger the Lambda function. What data type is the SAM file Events property?

  •  Integer
  •  Float
  •  Array
  •  String

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

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FAQs

What is Linkedin Assessment?

The LinkedIn Skill Assessments feature allows you to demonstrate your knowledge of the skills you’ve added to your profile by completing assessments specific to those skills. LinkedIn skills evaluations are a means to demonstrate the skills of job hunters. This is how LinkedIn Skill Assessments can be used.

Is this Skill Assessment Test is free?

Yes, the AWS Lambda LinkedIn assessment is totally free on LinkedIn for you. The only thing that is needed i.e. your dedication to learning.

When I will get Skill Badge?

Yes, if will Pass the Skill Assessment Test, then you will earn a skill badge that will reflect in your LinkedIn profile. For passing in LinkedIn Skill Assessment, you must score 70% or higher, then only you will get your to skill badge.

How to participate in skill quiz assessment?

It’s good practice to update and tweak your LinkedIn profile every few months. After all, life is dynamic and (I hope) you’re always learning new skills. You will notice a button under the Skills & Endorsements tab within your LinkedIn Profile: ‘Take skill quiz.‘ Upon clicking, you will choose your desired skill test quiz and complete your assessment.

LinkedIn Skill Assessments are a series of multiple-choice exams that allow you to prove the skills that are stated in your profile.

How to get Linkedin Skill Badge?

For getting Linkedin Badge in your profile, you need to score at least 70% and above for getting recognition of skill badges.

If you “grade in the 70th percentile or above”—according to LinkedIn—you officially pass and get a LinkedIn skill badge. The social media site will display your badge on your profile.

How long is Skill Assessment valid for?

Skills assessments that do not specify an expiry date are valid for 3 years from the date of the assessment. If more than 3 years have passed by the time the visa application is made, the skills assessment will no longer be valid.

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